CN214064540U - Grease pumping device and centralized lubricating system - Google Patents
Grease pumping device and centralized lubricating system Download PDFInfo
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- CN214064540U CN214064540U CN202022566771.0U CN202022566771U CN214064540U CN 214064540 U CN214064540 U CN 214064540U CN 202022566771 U CN202022566771 U CN 202022566771U CN 214064540 U CN214064540 U CN 214064540U
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Abstract
The utility model relates to a grease pumping installations and centralized lubrication system. The grease pumping device of the utility model adopts the transmission mode of the driving wheel and the driven wheel to drive the valve core of the reversing valve, the driving device drives the driving wheel to act, the driving wheel drives the driven wheel to rotate, meanwhile, under the action of the force between the driven wheel and the driving wheel, the driven wheel revolves around the rotation axis of the driving wheel along the arc guide structure, when the driven wheel revolves forwards and backwards, under the action of the driven wheel valve core transmission structure, the valve core is driven to do linear reciprocating motion, after the reversing valve finishes reversing, the driven wheel is blocked by the in-place blocking structure, so that the driven wheel can not continuously revolve, and the rotation is continued under the action of the driving wheel, and the mechanical vibration and the mechanical impact are reduced due to the continuous motion of the driving wheel and the driven wheel in the reversing process, so that the reversing process is stable, and the technical problem that the service life of the reversing mechanism is greatly reduced due to the mechanical vibration and the impact of the reversing mechanism of the conventional grease pumping device is solved.
Description
Technical Field
The utility model relates to a grease pumping installations and centralized lubrication system.
Background
The centralized lubrication system is widely applied to the fields of large-scale engineering machinery, automatic production lines and the like, and generally adopts a grease pumping device to pump lubricating grease to a grease distributor and then convey the lubricating grease to a lubrication point through the grease distributor.
At present, a commonly used grease pumping device is a plunger type grease pumping device, and comprises an oil tank for storing lubricating grease, a driving device, a plunger pair and a pump body for installing the components, wherein an oil suction port of the plunger pair is communicated with the oil tank, an output rotating shaft of the driving device is sleeved with an eccentric wheel, and a plunger of the plunger pair is abutted against the rim of the eccentric wheel along the radial direction of a conveying rotating shaft, so that the plunger of the plunger pair is driven to reciprocate, a certain amount of lubricating grease is sucked by the oil suction port of the plunger pair and is conveyed to a lubricating part through an oil discharge port of the plunger pair.
The oil discharge port is provided with two oil discharge ports, a reversing valve is arranged on a lubricating pipeline communicated with the oil discharge port of the plunger pair, the reversing valve is provided with at least two valve positions, when the reversing valve is positioned at a first valve position, lubricating grease can be conveyed to a part to be lubricated, namely a pressurization stage, and when the reversing valve is positioned at a second valve position, residual lubricating grease can flow back to an oil tank, namely a pressure relief stage. An oil inlet of the reversing valve is communicated with an oil discharge port of the plunger pair, an oil return port of the reversing valve is communicated with an oil tank, an oil outlet of the reversing valve is communicated with a lubricating pipeline, when the reversing valve is at a first valve position, the oil inlet is communicated with the oil outlet, grease enters the lubricating pipeline and is conveyed to a lubricating part, when the reversing valve is at a second valve position, the oil outlet is communicated with the oil return port, and the grease in the lubricating pipeline returns to the oil tank.
The current reversing valve usually adopts an electromagnetic reversing valve, and because grease is viscous, the current of the electromagnetic valve is large, the electromagnetic valve is easy to generate heat and is burnt out, so that the technical problem that the service life of the electromagnetic reversing valve is short is caused, and in addition, the electromagnetic valve generates heat, and the grease is easy to dry and cause deterioration phenomena, and equipment faults are easy to cause.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a grease pumping installations for solve the lower technical problem who influences the oil supply efficiency in the electromagnetic directional valve life-span that present grease pumping installations adopted, in addition, the utility model aims at still providing an use above-mentioned grease pumping installations's centralized lubrication system.
The utility model discloses a grease pumping installations adopts following technical scheme:
the grease pumping device comprises:
the pump body is provided with a pump body oil port;
the plunger piston pair is provided with an oil discharge port;
the reversing valve is communicated with the oil discharge port of the plunger pair and is provided with a valve core for switching oil discharge of the oil port of the pump body;
the driving device drives the plunger of the plunger pair to reciprocate;
the driving wheel is driven by the driving device to rotate positively and negatively;
the driven wheel is driven by the driving wheel to rotate;
the circular arc guide structure is used for guiding the driven wheel, and the circle center corresponding to the circular arc guide structure is positioned on the rotating axis of the driving wheel, so that the driving wheel drives the driven wheel to rotate and the driven wheel can revolve around the rotating axis of the driving wheel along the circular arc guide structure;
the driven wheel valve core transmission structure is used for driving the valve core to linearly move when the driven wheel revolves around the rotation axis of the driving wheel;
the reversing of the reversing valve is realized by controlling the driving device to change the rotating direction of the driving wheel;
and the in-place stopping structure is used for stopping the driven wheel after the driven wheel moves in place along the arc guide structure.
Has the advantages that: the utility model discloses a grease pumping device adopts action wheel and driven wheel driven mode drive switching-over valve case, and drive arrangement drives the action wheel action, and the action wheel drives the driven wheel rotation, and under the effort between the two simultaneously, the driven wheel revolves around the rotation axis of action wheel along circular arc guide structure, when revolving from the driving wheel forward and backward, under the effect of driven wheel case transmission structure, drives case straight reciprocating motion, through control drive arrangement, changes the direction of rotation of action wheel and can control the switching-over of switching-over valve, after the switching-over valve accomplishes the switching-over, carries out the driving wheel through stopping structure in place, the utility model discloses a stopping mechanical switching-over is difficult for generating heat, can not lead to the lubricating grease rotten; the mechanical reversing is safe and reliable, the failure rate is low, and the technical problem that the service life of an electromagnetic reversing valve adopted by the conventional grease pumping device is short and the grease supply efficiency is influenced is solved.
Furthermore, the driven wheel valve core transmission structure comprises an elongated slot or an elongated hole and a guide transmission member matched with the elongated slot or the elongated hole, the guide transmission member is matched with the elongated slot or the elongated slot in a guide mode along the extending direction of the elongated slot or the elongated slot, one of the valve core and the driven wheel is provided with the guide transmission member, the other one of the valve core and the driven wheel is provided with the elongated slot or the elongated slot, the moving direction of the guide transmission member relative to the elongated slot or the elongated slot and the moving direction of the valve core form a set included angle, and the driven wheel is driven to reciprocate around the rotating axis.
Has the advantages that: through slot hole or elongated slot and the cooperation of direction driving medium, simple structure, the installation of being convenient for, and stability is better.
The guiding transmission member is further optimized, and the driven wheel shaft of the driven wheel forms the guiding transmission member. The driven wheel shaft forms a guide transmission part, so that the structure is more compact.
The other transmission form of the valve core and the driven wheel is as follows: the driven wheel valve core transmission structure comprises a transmission connecting rod hinged with the valve core, and the transmission connecting rod is hinged with a driven wheel shaft of the driven wheel so as to drive the valve core to linearly move through the transmission connecting rod in the revolution process of the driven wheel.
Has the advantages that: the transmission connecting rod is respectively hinged with the driven wheel shaft and the valve core, so that the connection is more reliable.
The use of the transmission connecting rod is further optimized, and a limiting structure for radially limiting the part of the valve core extending out of the reversing valve casing is arranged in the pump body.
Has the advantages that: because the transmission connecting rod exerts the ascending effort of footpath to the case, case and the easy wearing and tearing of switching-over valve casing under this effort, can reduce the wearing and tearing between case and the switching-over valve casing through limit structure.
And further optimizing a limiting structure, wherein the limiting structure is a limiting hole, and the valve core penetrates through the limiting hole.
Has the advantages that: the limiting hole is simple in structure and can limit the circumferential direction of the valve core in an all-round mode.
And further optimizing an arc guide structure, wherein the arc guide structure is an arc long groove or an arc long hole for guiding the driven wheel, and the in-place stop structure is formed on the groove wall surfaces at two ends of the arc long groove or the hole wall surfaces at two ends of the arc long hole in the waist length direction to form the in-place stop structure.
Has the advantages that: the arc-shaped long hole or the arc-shaped long groove has a simple structure and is convenient to process.
When the arc-shaped long groove or the arc-shaped long hole is used, the driven wheel is further optimized, a driven wheel shaft of the driven wheel is inserted into the arc-shaped long groove or the arc-shaped long hole, and the arc-shaped long groove or the arc-shaped long hole is matched with the driven wheel shaft in a guiding mode along the circumferential direction of the driving wheel to achieve guiding of revolution of the driven wheel.
Has the advantages that: the driving wheel shaft is matched with the arc-shaped long hole or the arc-shaped long groove, so that the structure of the driven wheel is simplified, and the matching relation is simple and reliable.
Furthermore, the driving wheel and the driven wheel are both gears, or both friction wheels, or both chain wheels, or both belt wheels.
Has the advantages that: simple structure and convenient assembly.
And further optimizing an arc guide structure, wherein the chord length extension direction of the arc guide structure is consistent with the reciprocating motion direction of the valve core.
Has the advantages that: the chord length of the arc guide structure is minimized, and the structure is more compact.
The form of the pump body is optimized, the number of the pump body oil ports is two, one of the two pump body oil ports is used for feeding oil, and the other pump body oil port is used for discharging oil in the reciprocating motion process of the valve core of the reversing valve.
Has the advantages that: the oil outlet efficiency of the oil ports of the double pump bodies is higher.
The utility model discloses centralized lubrication system's technical scheme:
centralized lubrication system, including grease pumping installation, oil tank and distributor, grease pumping installation includes:
the pump body is provided with a pump body oil port;
the plunger piston pair is provided with an oil discharge port;
the reversing valve is communicated with the oil discharge port of the plunger pair and is provided with a valve core for switching oil discharge of the oil port of the pump body;
the driving device drives the plunger of the plunger pair to reciprocate;
the driving wheel is driven by the driving device to rotate positively and negatively;
the driven wheel is driven by the driving wheel to rotate;
the circular arc guide structure is used for guiding the driven wheel, and the circle center corresponding to the circular arc guide structure is positioned on the rotating axis of the driving wheel, so that the driving wheel drives the driven wheel to rotate and the driven wheel can revolve around the rotating axis of the driving wheel along the circular arc guide structure;
the driven wheel valve core transmission structure is used for driving the valve core to linearly move when the driven wheel revolves around the rotation axis of the driving wheel;
the reversing of the reversing valve is realized by controlling the driving device to change the rotating direction of the driving wheel;
and the in-place stopping structure is used for stopping the driven wheel after the driven wheel moves in place along the arc guide structure.
Has the advantages that: the grease pumping device adopts a driving wheel and a driven wheel transmission mode to drive a reversing valve core, the driving device drives the driving wheel to act, the driving wheel drives the driven wheel to rotate, simultaneously, under the action of force between the driving wheel and the driven wheel, the driven wheel revolves around the rotation axis of the driving wheel along an arc guide structure, when the driven wheel revolves in the forward direction and the reverse direction, under the action of a driven wheel core transmission structure, the valve core is driven to do linear reciprocating motion, the reversing of the reversing valve can be controlled by controlling the driving device and changing the rotation direction of the driving wheel, and after the reversing valve finishes reversing, the driven wheel is blocked by an in-place blocking structure, the grease pumping device is difficult to generate heat through mechanical reversing, and lubricating grease is difficult to deteriorate; the mechanical reversing is safe and reliable, the failure rate is low, and the technical problem that the service life of an electromagnetic reversing valve adopted by the conventional grease pumping device is short and the grease supply efficiency is influenced is solved.
Furthermore, the driven wheel valve core transmission structure comprises an elongated slot or an elongated hole and a guide transmission member matched with the elongated slot or the elongated hole, the guide transmission member is matched with the elongated slot or the elongated slot in a guide mode along the extending direction of the elongated slot or the elongated slot, one of the valve core and the driven wheel is provided with the guide transmission member, the other one of the valve core and the driven wheel is provided with the elongated slot or the elongated slot, the moving direction of the guide transmission member relative to the elongated slot or the elongated slot and the moving direction of the valve core form a set included angle, and the driven wheel is driven to reciprocate around the rotating axis of the driving wheel along the circular arc guide structure and simultaneously drive the valve core to reciprocate.
Has the advantages that: through slot hole or elongated slot and the cooperation of direction driving medium, simple structure, the installation of being convenient for, and stability is better.
The guiding transmission member is further optimized, and the driven wheel shaft of the driven wheel forms the guiding transmission member. The driven wheel shaft forms a guide transmission part, so that the structure is more compact.
The other transmission form of the valve core and the driven wheel is as follows: the driven wheel valve core transmission structure comprises a transmission connecting rod hinged with the valve core, and the transmission connecting rod is hinged with a driven wheel shaft of the driven wheel so as to drive the valve core to linearly move through the transmission connecting rod in the revolution process of the driven wheel.
Has the advantages that: the transmission connecting rod is respectively hinged with the driven wheel shaft and the valve core, so that the connection is more reliable.
The use of the transmission connecting rod is further optimized, and a limiting structure for radially limiting the part of the valve core extending out of the reversing valve casing is arranged in the pump body.
Has the advantages that: because the transmission connecting rod exerts the ascending effort of footpath to the case, case and the easy wearing and tearing of switching-over valve casing under this effort, can reduce the wearing and tearing between case and the switching-over valve casing through limit structure.
And further optimizing a limiting structure, wherein the limiting structure is a limiting hole, and the valve core penetrates through the limiting hole.
Has the advantages that: the limiting hole is simple in structure and can limit the circumferential direction of the valve core in an all-round mode.
And further optimizing an arc guide structure, wherein the arc guide structure is an arc long groove or an arc long hole for guiding the driven wheel, and the in-place stop structure is formed on the groove wall surfaces at two ends of the arc long groove or the hole wall surfaces at two ends of the arc long hole in the waist length direction to form the in-place stop structure.
Has the advantages that: the arc-shaped long hole or the arc-shaped long groove has a simple structure and is convenient to process.
When the arc-shaped long groove or the arc-shaped long hole is used, the driven wheel is further optimized, a driven wheel shaft of the driven wheel is inserted into the arc-shaped long groove or the arc-shaped long hole, and the arc-shaped long groove or the arc-shaped long hole is matched with the driven wheel shaft in a guiding mode along the circumferential direction of the driving wheel to achieve guiding of revolution of the driven wheel.
Has the advantages that: the driving wheel shaft is matched with the arc-shaped long hole or the arc-shaped long groove, so that the structure of the driven wheel is simplified, and the matching relation is simple and reliable.
Furthermore, the driving wheel and the driven wheel are both gears, or both friction wheels, or both chain wheels, or both belt wheels.
Has the advantages that: simple structure and convenient assembly.
And further optimizing an arc guide structure, wherein the chord length extension direction of the arc guide structure is consistent with the reciprocating motion direction of the valve core.
Has the advantages that: the chord length of the arc guide structure is minimized, and the structure is more compact.
The form of the pump body is optimized, the number of the pump body oil ports is two, one of the two pump body oil ports is used for feeding oil, and the other pump body oil port is used for discharging oil in the reciprocating motion process of the valve core of the reversing valve.
Has the advantages that: the oil outlet efficiency of the oil ports of the double pump bodies is higher.
Drawings
Fig. 1 is a schematic view of a part of the internal structure of a grease pumping device in embodiment 1 of the present invention;
fig. 2 is a schematic view of a part of the structure of a grease pumping device according to embodiment 1 of the present invention;
fig. 3 is a schematic view of a matching structure of a reversing valve, a driving device, a driving wheel and a driven wheel in embodiment 1 of the grease pumping device of the present invention;
fig. 4 is a schematic structural view of the grease pumping device according to embodiment 1 of the present invention, in a state where the reversing valve is separated from the guide plate;
fig. 5 is a schematic view of a matching structure of a reversing valve, a driving wheel and a driven wheel in embodiment 1 of the grease pumping device of the present invention;
fig. 6 is a schematic view of a partial structure of a grease pumping device according to embodiment 2 of the present invention;
fig. 7 is a schematic structural view of a driving wheel and a driven wheel in embodiment 3 of the grease pumping device of the present invention;
fig. 8 is a schematic structural view of a driving wheel and a driven wheel in the grease pumping device according to embodiment 4 of the present invention;
in fig. 1 to 5: 1-a pump body; 2-driving the motor; 3-a reducer; 4-a reversing valve; 41-a reversing valve housing; 42-a valve core; 421-long hole; 422-valve stem; 423-driven wheel axle mating plate; 5-a power output shaft; 6-driving wheel; 7-driven wheel; 71-a driven wheel shaft; 711-slot hole mating section; 712-arc slot hole matching section; 713-stop cap; 8-a guide plate; 81-arc-shaped long holes;
in fig. 6: 41-a reversing valve housing; 42-a valve core; 7-driven wheel; 71-a driven wheel shaft; 9-a transmission link; 11-a limiting hole;
in fig. 7: 6-driving wheel; 7-driven wheel; 10-a chain;
in fig. 8: 6-driving wheel; 7-driven wheel.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The features and properties of the present invention are described in further detail below with reference to examples.
The utility model discloses grease pumping installations's embodiment 1:
as shown in fig. 1 to 4, the grease pumping device includes a pump body 1, a plunger pair and a driving device for driving the plunger pair to move, the plunger pair is disposed in the pump body 1, the plunger pair has an oil suction port and an oil discharge port, the oil suction port of the plunger pair is communicated with an oil tank, and the driving device can drive a plunger of the plunger pair to reciprocate to discharge grease in the oil tank from the oil discharge port of the plunger pair. In the embodiment, the driving device comprises a driving motor 2 and a speed reducer 3, and in other embodiments, the driving device may adopt a motor, and the motor may adopt hydraulic or pneumatic driving.
The grease pumping device in this embodiment is a two-line lubrication pump, two pump body oil ports are arranged on the pump body 1, the reversing valve 4 is arranged on the pump body 1, the reversing valve 4 in this embodiment is a two-position four-way reversing valve, the reversing valve 4 comprises a reversing valve casing 41 and a valve core 42, the valve core 42 is in sliding seal fit with the reversing valve casing 41, one end of the valve core 42 extends out of the reversing valve casing 41, the reversing valve casing 41 is provided with an oil inlet, an oil return port and two oil outlets, the oil inlet of the reversing valve 4 is communicated with an oil discharge port of a plunger pair, the oil return port is communicated with an oil tank, the two oil outlets are respectively communicated with the two pump body oil ports, the reversing valve 4 is provided with the valve core 42 for switching the oil discharge state of the pump body oil ports, and in the reciprocating motion process of the valve core 42, one of the two pump body oil ports takes oil and the other pump body oil discharges oil.
In this embodiment, a cam is disposed on the power output shaft 5 of the driving device, and the cam drives the plunger of the plunger pair to reciprocate. The power output shaft 5 of the driving device is also provided with a driving wheel 6, the driving wheel 6 is fixed with the power output shaft 5 of the driving motor 2, the driving wheel 6 is connected with a driven wheel 7 in a transmission way, and the driving wheel 6 and the driven wheel 7 are straight gears which are meshed with each other. The driven wheel 7 is connected with one end of the valve core 42 of the reversing valve 4 extending out of the reversing valve casing 41, and drives the valve core 42 of the reversing valve 4 to reciprocate.
As shown in fig. 3 to 5, a guide plate 8 is provided in the pump body 1, the guide plate 8 is fixed to the reversing valve housing 41, and an arc guide structure is provided on the guide plate 8, and a circle center corresponding to the arc guide structure is located on the rotation axis of the driving wheel 6. The hole wall surfaces at the two ends of the circular arc-shaped long hole 81 in the longitudinal direction are used for being matched with the driven wheel 7 shaft in a stop manner after the driven wheel 7 shaft drives the valve core 42 to move in place, stopping the driven wheel 7 shaft and limiting the driven wheel 7 shaft to continue revolution. In this embodiment, the hole walls at the two ends of the long circular arc-shaped hole 81 in the waist length direction form an in-place stopping structure for stopping the driven wheel 7 after the driven wheel 7 moves in place along the circular arc guide structure, and in other embodiments, a stopping structure may be additionally disposed in the pump body 1, for example, a stopper is added to stop the shaft of the driven wheel 7.
The driven wheel 7 and the valve core 42 realize power transmission through a driven wheel valve core transmission structure, and the motion of the driven wheel 7 is circular motion, while the motion of the valve core 42 is linear motion, so the driven wheel valve core transmission structure needs to transmit the power of the driven wheel 7 in circular motion to the valve core 42 in linear motion. In this embodiment, the spool 42 is provided with a long hole 421, the driven wheel shaft 71 is inserted into the long hole 421, and the long hole 421 and the driven wheel shaft 71 constitute a driven spool transmission structure. In the process of revolution of the driven wheel shaft 71 around the rotation axis of the driving wheel 6, the driven wheel shaft 71 is matched with the long hole 421, the valve core 42 can be driven to move, and meanwhile, the long hole 421 can meet the requirement of relative movement of the driven wheel shaft 71 and the valve core 42. The driven axle 71 in this embodiment constitutes a guide transmission. The valve body 42 includes a stem 422, and an inner core (not shown), the stem 422 extends out of the direction changing valve case 41, a driven wheel shaft engagement plate 423 is fixed to the stem 422, and a long hole 421 is provided in the driven wheel shaft engagement plate 423.
In this embodiment, the driven wheel shaft 71 is fixed to the driven wheel 7, two ends of the driven wheel shaft 71 are respectively located at two sides of the driven wheel 7, a long hole matching section 711 on the driven wheel shaft 71 and matching with the long hole 421, and a circular long hole 81 matching section 712 matching with the circular long hole 81 are respectively located at two sides of the driven wheel 7, the circular long hole 81 matching section 712 can rotate and slide in the circular long hole 81, wherein a stop cap 713 in stop fit with a hole of the circular long hole 81 on the driven wheel shaft 71 is further disposed on the circular long hole 81 matching section 712, and the stop cap 713 enables the driven wheel shaft 71 and the circular long hole 81 to be matched more stably.
In this embodiment, the extending direction of the chord length of the arc-shaped long hole 81 is consistent with the reciprocating direction of the valve element 42, so as to ensure that the valve element 42 can move in place, and simultaneously, the length of the arc-shaped long hole 81 is shortest, so that the overall structure is more compact.
The operation principle of the driven wheel 7 will be explained, and the force analysis of the driven wheel 7 is that the driven wheel 7 receives the driving force F of the driving wheel 6 and the friction force F of the hole wall of the circular arc-shaped long hole 810Resistance f to grease1And also the resistance f of the plunger2Rational F for the driven wheel 7Combination of Chinese herbs=F-f0-f1-f2Wherein f is0Material dependent, is constant, f2The resistance of the plunger is basically unchanged and is set as constant f1The value of (D) is related to the viscosity x of the grease and the angular velocity v of the movement of the driven wheel 7, and F is required to be satisfied when the driven wheel 7 movesCombination of Chinese herbsAnd the viscosity is determined after the lubricating grease is selected, so that the moving speed of the driven wheel 7 can be adjusted by adjusting the value of F, the value of F can be set by adjusting the driving motor 2, and the moving speed of the driven wheel 7 in the arc-shaped long hole 81 can be controlled by adjusting the values of various parameters.
The utility model discloses a grease pumping device during operation, start driving motor 2, power output shaft 5 drives the vice plunger action of plunger, pump the grease in the oil tank out from the pump body hydraulic fluid port, when needing to change the pump body hydraulic fluid port business turn over oil state, driving motor 2 reverses, action wheel 6 reverses, the reversal is anticlockwise rotation in this embodiment, from the clockwise rotation of driving wheel 7 self this moment, simultaneously in circular arc slot 81 around action wheel 6 axis of rotation anticlockwise revolution, from the driven wheel 7 anticlockwise revolution simultaneously, driven wheel shaft 71 and the pore wall roof pressure cooperation of slot hole 421, driven wheel shaft 71 drives case 42 and removes, realize the once switching-over of switching-over valve 4, after switching-over valve 4 commutates in place, driving motor 2 continues to drive the vice action of plunger and pumps the grease from a pump body hydraulic fluid port, the pore wall of circular arc slot 81 waist length direction tip cooperates with driven wheel shaft 71 block at this moment, the driven wheel shaft 71 can not continuously revolve, the driven wheel 7 is driven by the driving wheel 6 to continuously rotate, the reversing valve 4 is continuously operated in the reversing process, almost no mechanical impact and mechanical vibration exist, the transmission is more stable, and the service life of the reversing valve 4 is prolonged.
When reversing is needed again, the steering of the driving motor 2 is switched, the power output shaft 5 reverses and rotates, the driving wheel 6 rotates forwards, the driven wheel 7 rotates anticlockwise and revolves clockwise around the rotation axis of the driving wheel 6 in the circular arc-shaped long hole 81, the driven wheel 7 revolves clockwise, the driven wheel shaft 71 is in press fit with the hole wall of the long hole 421, the driven wheel shaft 71 drives the valve core 42 to move, the reversing valve 4 reverses again, the driving motor 2 continuously drives the plunger pair to act after the reversing valve 4 reverses in place, at the moment, the hole wall of one end of the circular arc-shaped long hole 81 in the waist length direction is in stop fit with the driven wheel shaft 71, the driven wheel 7 cannot continue to revolve, and rotation is kept under the action of the driving wheel 6.
The utility model discloses grease pumping installations's embodiment 2, the difference of structure and the above-mentioned embodiment structure of grease pumping installations only lies in this embodiment: as shown in fig. 6, the valve core 42 is hinged to the transmission link 9, and the transmission link 9 is hinged to the driven wheel shaft 71 of the driven wheel 7, so that the driven wheel 7 drives the valve core 42 to move linearly through the transmission link 9 during the revolution process. In this embodiment, the pump body is provided with a position-limiting hole 11 for radially limiting a portion of the valve element 42 extending out of the reversing valve housing 41, and the valve element 42 passes through the position-limiting hole 11. Because the action force towards one side can be given to the valve core 42 by the transmission connecting rod 9, the mutual abrasion of the matching part of the valve core 42 and the valve core 42 cavity is easily increased, the matching precision is influenced, the lateral force received by the valve core 42 can be transmitted to the hole wall of the limiting hole through the limiting hole 11, and the abrasion of the matching part of the valve core 42 and the valve core 42 cavity is not increased.
The limiting hole in the embodiment forms a limiting structure, and in other embodiments, the limiting structure can also be a limiting groove arranged in the pump body.
The utility model discloses grease pumping installations's embodiment 3, the difference of structure and the above-mentioned embodiment structure of grease pumping installations only lies in this embodiment: as shown in fig. 7, the driving pulley 6 and the driven pulley 7 are chain wheels, and the driving pulley 6 and the driven pulley 7 are driven by a chain 10.
The utility model discloses grease pumping installations's embodiment 4, the difference of structure and the above-mentioned embodiment structure of grease pumping installations only lies in this embodiment: as shown in fig. 8, the driving pulley 6 and the driven pulley 7 are both helical gears.
The utility model discloses grease pumping installations's embodiment 5, the difference of structure and the above-mentioned embodiment structure of grease pumping installations only lies in this embodiment: the driving wheel and the driven wheel are both bevel gears.
The utility model discloses grease pumping installations's embodiment 6, the difference of structure and the above-mentioned embodiment structure of grease pumping installations only lies in this embodiment: the driving wheel and the driven wheel are friction wheels and are in friction transmission.
The utility model discloses grease pumping installations's embodiment 7, the difference of structure and the above-mentioned embodiment structure of grease pumping installations only lies in this embodiment: the driving wheel and the driven wheel are belt wheels and are in transmission through a belt.
The utility model discloses grease pumping installations's embodiment 8, the difference of structure and the above-mentioned embodiment structure of grease pumping installations only lies in this embodiment: the valve core is provided with a transmission rod, and the driven wheel is provided with a long hole.
In other embodiments, a long groove may be provided on the valve core instead of the long hole, or of course, a long groove may be provided on the driven wheel, and a transmission rod may be provided on the valve core. The transmission rod forms a guide transmission part of the driven wheel valve core transmission structure, and in other embodiments, the guide transmission part can be a sliding block or a guide wheel when arranged on the valve core. In other embodiments, when the guiding transmission member is disposed on the driven wheel, the guiding transmission member may also be a sliding block or a guiding wheel disposed on the driven wheel.
The utility model discloses grease pumping installations's embodiment 9, the difference of structure and the above-mentioned embodiment structure of grease pumping installations only lies in this embodiment: the circular arc guide structure is a circular arc track, and at the moment, a track wheel matched with the circular arc track is arranged on the driven wheel shaft. And the two ends of the circular arc-shaped track are provided with stop blocks, the stop blocks are used for being matched with the driven wheel shaft in a stop way after the driven wheel shaft is in place, and the stop blocks form an in-place stop structure.
In other embodiments, the arc-shaped wire steel structure can also be an arc-shaped long groove, and the groove wall surfaces at two ends of the arc-shaped long groove form in-place stop structures.
The utility model discloses grease pumping installations's embodiment 10, the difference of structure and the above-mentioned embodiment structure of grease pumping installations only lies in this embodiment: in this embodiment, an included angle smaller than 90 degrees is formed between the extending direction of the chord length of the arc-shaped long hole and the reciprocating direction of the valve core.
The utility model discloses grease pumping installations's embodiment 11, the difference of structure and the above-mentioned embodiment structure of grease pumping installations only lies in this embodiment: the grease pumping device in this embodiment is a single-line lubrication pump, the oil port of the pump body is provided with one, the reversing valve is a two-position three-way reversing valve, and the oil port of the pump body is communicated with an oil discharge port of an oil tank or a plunger pair in the reciprocating motion process of a valve core of the reversing valve.
The utility model discloses grease pumping installations's embodiment 12, the difference of structure and the above-mentioned embodiment structure of grease pumping installations only lies in this embodiment: the driven wheel shaft is in running fit with the driven wheel, and the driven wheel shaft is in sliding fit with the arc-shaped long hole and is in rotation stopping fit. In other embodiments, the driven wheel shaft can rotate in the circular arc-shaped long hole.
The utility model discloses concentrate lubricating system's embodiment, concentrate lubricating system and include grease pumping installations, oil tank and distributor, grease pumping installations's structure and any embodiment in the above-mentioned grease pumping installations in the structure the same.
The above description is only for the preferred embodiment of the present invention, and the present invention is not limited thereto, the protection scope of the present invention is defined by the claims, and all structural changes equivalent to the contents of the description and drawings of the present invention should be included in the protection scope of the present invention.
Claims (12)
1. A grease pumping device comprising:
the pump body (1) is provided with a pump body oil port;
the plunger piston pair is provided with an oil discharge port;
the reversing valve (4) is communicated with an oil discharge port of the plunger pair and is provided with a valve core (42) used for switching oil outlet of an oil port of the pump body;
the driving device drives the plunger of the plunger pair to reciprocate;
it is characterized in that the preparation method is characterized in that,
the grease pumping device further comprises:
the driving wheel (6) is driven by the driving device to rotate positively and negatively;
the driven wheel (7) is driven by the driving wheel (6) to rotate;
the arc guide structure is used for guiding the driven wheel (7), so that the driven wheel (7) can revolve around the rotation axis of the driving wheel (6) along the arc guide structure while the driving wheel (6) drives the driven wheel (7) to rotate;
the driven wheel valve core transmission structure is used for driving the driven wheel (7) to drive the valve core (42) to linearly move when revolving around the rotation axis of the driving wheel (6);
the reversing of the reversing valve (4) is realized by controlling the driving device to change the rotating direction of the driving wheel (6);
and the in-place stopping structure is used for stopping the driven wheel (7) after the driven wheel (7) moves in place along the arc guide structure.
2. The grease pumping device according to claim 1, wherein the driven wheel valve core transmission structure comprises an elongated slot or an elongated hole (421), and a guide transmission member engaged with the elongated slot or the elongated hole (421), the guide transmission member is engaged with the elongated hole (421) or the elongated slot in a guiding manner along an extending direction of the elongated slot (421) or the elongated slot, one of the valve core (42) and the driven wheel (7) is provided with a guide transmission member, the other is provided with the elongated slot or the elongated hole (421), and a moving direction of the guide transmission member relative to the elongated slot (421) or the elongated slot has a set included angle with a moving direction of the valve core (42), so that the driven wheel (7) revolves around a rotation axis of the driving wheel (6) along the arc guide structure and drives the valve core (.
3. A grease pumping device according to claim 2, characterized in that the driven wheel shaft (71) of the driven wheel (7) constitutes the guiding transmission.
4. The grease pumping device according to claim 1, wherein the valve core (42) is hinged to a transmission connecting rod (9), and the transmission connecting rod (9) is hinged to a driven wheel shaft (71) of the driven wheel (7), so that the driven wheel (7) drives the valve core (42) to move linearly through the transmission connecting rod (9) during the revolution process.
5. A grease pumping device according to claim 4, characterized in that the pump body (1) is provided with a limiting structure for radially limiting the part of the valve core (42) extending out of the reversing valve casing (41).
6. A grease pumping device according to claim 5, characterized in that the limiting structure is a limiting hole, and the valve core (42) passes through the limiting hole (11).
7. The grease pumping device according to any one of claims 1 to 6, wherein the arc guide structure is an arc-shaped elongated slot or an arc-shaped elongated hole (81) for guiding the driven wheel (7), and the slot wall surfaces at both ends of the arc-shaped elongated slot form the in-position stop structure or the hole wall surfaces at both ends of the arc-shaped elongated hole (81) in the waist length direction form the in-position stop structure.
8. The grease pumping device according to claim 7, wherein the driven wheel shaft (71) of the driven wheel (7) is inserted into the circular arc-shaped long groove or the circular arc-shaped long hole (81), and the circular arc-shaped long groove or the circular arc-shaped long hole (81) and the driven wheel shaft (71) are guided and matched in the circumferential direction of the driving wheel (6) to guide the revolution of the driven wheel (7).
9. A grease pumping device according to any one of claims 1-6, characterized in that the driving wheel (6) and the driven wheel (7) are both gears, or both friction wheels, or both chain wheels, or both belt wheels.
10. A grease pumping device according to any one of claims 1-6, characterized in that the chord length extension direction of the circular arc guide structure coincides with the reciprocating direction of the valve spool (42).
11. The grease pumping device according to any one of claims 1-6, characterized in that two pump body ports are provided, and one pump body port of the two pump body ports is fed with oil and the other pump body port is fed with oil during the reciprocating motion of the valve core (42) of the reversing valve (4).
12. Centralized lubrication system comprising a grease pumping device, a tank and a distributor, characterised in that the grease pumping device is a grease pumping device according to any of claims 1-11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022566771.0U CN214064540U (en) | 2020-11-09 | 2020-11-09 | Grease pumping device and centralized lubricating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022566771.0U CN214064540U (en) | 2020-11-09 | 2020-11-09 | Grease pumping device and centralized lubricating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214064540U true CN214064540U (en) | 2021-08-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022566771.0U Active CN214064540U (en) | 2020-11-09 | 2020-11-09 | Grease pumping device and centralized lubricating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214064540U (en) |
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2020
- 2020-11-09 CN CN202022566771.0U patent/CN214064540U/en active Active
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