Seven-piston high-pressure pump

Abstract

The present application relates to the technical fields of plunger pump, and discloses a seven-plunger high-pressure pump, which comprises a plunger pump, a transmission assembly, a control assembly and a host computer; the transmission assembly comprises a transmission rod, a driving rod fixed with the transmission rod, a fixed frame sleeved outside the driving rod, a rotating rod sleeved inside the driving rod and a positioning rod; the control assembly comprises a cam fixedly connected with the rotating rod, an elastic member abutting against the cam, a mounting frame bearing the elastic member, a ratchet piece cooperatively connected with the elastic member, a trigger piece fixed with the mounting frame, a first ratchet wheel cooperatively connected with the ratchet piece, a trigger rod arranged on the first ratchet wheel, a second ratchet wheel cooperatively connected with the trigger rod, a rotating disc fixed with the second ratchet wheel and the host computer connected with the rotating disc; the present application records the reciprocating times of the plunger through mechanical transmission, and when the predetermined value is reached, the rotation of the rotating disc is monitored to control the opening and closing of the electromagnetic valve, and the lubricant is injected into the plunger, so that compared with the digital circuit, only the rotation of the rotating disc needs to be monitored, and the monitoring mode is simple.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of plunger pump, and particularly relates to a seven-plunger high-pressure pump. BACKGROUND

[0002] The plunger pump is an important device of a hydraulic system. The plunger pump relies on the reciprocating movement of a plunger in a cylinder to change the volume of a sealed working cavity to realize oil suction and oil compression. The plunger pump has the advantages of high rated pressure, compact structure, high efficiency and convenient flow adjustment, and is widely used in high-pressure, large-flow and flow-adjusted occasions, such as hydraulic machines, engineering machinery and ships. In the current plunger pump, the plunger and the pump body are in direct contact, and the plunger needs to slide reciprocally relative to the pump body at a high frequency during work, so that the plunger is prone to wear, thereby affecting the sealing performance and causing the plunger pump to be scrapped. SUMMARY

[0003] In view of the problems existing in the prior art, the present application is provided.

[0004] Therefore, the present application aims to provide a seven-plunger high-pressure pump which can circulate lubricant inside the plunger.

[0005] To solve the above technical problems, the present application provides the following technical scheme: a seven-plunger high-pressure pump, comprising: a plunger pump, comprising a driving end, a hydraulic end, and a lubricant connected to the hydraulic end; a transmission assembly, comprising a transmission rod, a driving rod fixedly connected to the transmission rod, a fixed frame sleeved outside the driving rod, a rotating rod sleeved inside the driving rod, and a positioning rod; and a control assembly, comprising a cam fixedly connected to the rotating rod, a spring member abutting against the cam, a mounting frame bearing the spring member, a pawl member cooperatively connected to the spring member, a trigger member fixedly connected to the mounting frame, a first ratchet wheel cooperatively connected to the pawl member, a trigger rod arranged on the first ratchet wheel, a second ratchet wheel cooperatively connected to the trigger rod, a rotating disc fixedly connected to the second ratchet wheel, and an upper computer connected to the rotating disc.

[0006] As a preferred scheme of the seven-plunger high-pressure pump, the lubricant is connected to the inside of the plunger of the hydraulic end, and an electromagnetic valve is further arranged between the lubricant and the hydraulic end; one end of the transmission rod is fixedly connected to an extension rod on the hydraulic end, and the other end is fixedly connected to the driving rod; symmetrically arranged on the outer wall of the driving rod are sliding strips, and the positioning rod is fixed to the driving rod; a groove with the same shape and size as the sliding strip is formed in the inner wall of the fixed frame, and the sliding strip is in sliding connection with the groove.

[0007] As a preferred scheme of the seven-plunger high-pressure pump, the end of the rotating rod is further provided with a fixed block, the end of the rotating rod is rotatably arranged in the fixed block, and clamping rings are further arranged on both sides of the fixed block.

[0008] As a preferred scheme of the seven-plunger high-pressure pump, the end of the rotating rod is further provided with a fixed block, the end of the rotating rod is rotatably arranged in the fixed block, and clamping rings are further arranged on both sides of the fixed block.

[0009] As a preferred scheme of the seven-plunger high-pressure pump, the end of the rotating rod is further provided with a fixed block, the end of the rotating rod is rotatably arranged in the fixed block, and clamping rings are further arranged on both sides of the fixed block.

[0010] As a preferred scheme of the seven-plunger high-pressure pump, the end of the rotating rod is further provided with a fixed block, the end of the rotating rod is rotatably arranged in the fixed block, and clamping rings are further arranged on both sides of the fixed block.

[0011] As a preferred scheme of the seven-plunger high-pressure pump, the end of the rotating rod is further provided with a fixed block, the end of the rotating rod is rotatably arranged in the fixed block, and clamping rings are further arranged on both sides of the fixed block.

[0012] As a preferred scheme of the seven-plunger high-pressure pump, the end of the rotating rod is further provided with a fixed block, the end of the rotating rod is rotatably arranged in the fixed block, and clamping rings are further arranged on both sides of the fixed block.

[0013] As a preferred scheme of the seven-plunger high-pressure pump, the end of the rotating rod is further provided with a fixed block, the end of the rotating rod is rotatably arranged in the fixed block, and clamping rings are further arranged on both sides of the fixed block.

[0014] As a preferred scheme of the seven-plunger high-pressure pump, the end of the rotating rod is further provided with a fixed block, the end of the rotating rod is rotatably arranged in the fixed block, and clamping rings are further arranged on both sides of the fixed block.

[0015] The seven-plunger high-pressure pump has the following beneficial effects.

[0016] The seven-plunger high-pressure pump in the application records the reciprocating motion times of the plunger through mechanical transmission, controls the opening and closing of the electromagnetic valve through monitoring the rotation of the rotating disc when the predetermined value is reached, and injects lubricant into the plunger. Compared with the digital circuit which adds lubricant to the plunger by monitoring the reciprocating motion times of the plunger, the application does not need to monitor the reciprocating motion times of the plunger, but only needs to monitor the rotation of the rotating disc. The monitoring method is simple, the monitoring module is easy to implement, the mechanical transmission is more reliable than the digital circuit, and the recording of the plunger motion times is less prone to errors. The reciprocating motion counting of the plunger is realized through the mechanical transmission system, avoiding the dependence on complex electronic components and improving the reliability and stability of the system. The simplified control logic makes the lubrication control more accurate, ensures that each plunger is effectively lubricated in time, and prolongs the service life of the equipment. At the same time, the design of the scheme is suitable for multi-plunger configuration, reduces the operation and maintenance cost, enhances the safety, and is convenient for monitoring and maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creating labor intensity on the premise of the drawings. Among them:

[0018] Figure 1 It is a top view of the plunger pump of the seven-plunger high-pressure pump of the application;

[0019] Figure 2 It is an A-A sectional view of the plunger pump of the seven-plunger high-pressure pump of the application;

[0020] Figure 3 It is a schematic diagram of the overall structure of the seven-plunger high-pressure pump of the application;

[0021] Figure 4 It is a schematic diagram of the transmission rod structure of the seven-plunger high-pressure pump of the application;

[0022] Figure 5 It is a schematic diagram of the transmission assembly and control assembly structure of the seven-plunger high-pressure pump of the application;

[0023] Figure 6 It is a schematic diagram of the transmission assembly structure of the seven-plunger high-pressure pump of the application;

[0024] Figure 7 It is a schematic diagram of the internal structure of the fixing frame of the seven-plunger high-pressure pump of the application;

[0025] Figure 8 It is a schematic diagram of the driving rod structure of the seven-plunger high-pressure pump of the application;

[0026] Figure 9The schematic diagram of the rotating rod structure of the seven-plunger high-pressure pump of the present application;

[0027] Figure 10 The schematic diagram of the sliding groove unfolding of the seven-plunger high-pressure pump of the present application;

[0028] Figure 11 The schematic diagram of the control assembly structure of the seven-plunger high-pressure pump of the present application;

[0029] Figure 12 The schematic diagram of the rotating disc structure of the seven-plunger high-pressure pump of the present application;

[0030] Figure 13 The schematic diagram of the ejector member and the pawl member structure of the seven-plunger high-pressure pump of the present application;

[0031] Figure 14 The schematic diagram of the trigger member structure of the seven-plunger high-pressure pump of the present application;

[0032] Figure 15 The schematic diagram of the trigger rod structure of the seven-plunger high-pressure pump of the present application;

[0033] Figure 16 The schematic diagram of the second ratchet structure of the seven-plunger high-pressure pump of the present application;

[0034] Figure 17 The three-dimensional assembly diagram of the control assembly of the seven-plunger high-pressure pump of the present application.

[0035] The figure mark: 100, plunger pump; 101, driving end; 102, hydraulic end; 103, lubricant; 200, transmission assembly; 201, transmission rod; 202, driving rod; 202a, sliding bar; 203, fixed frame; 203a, groove; 204, rotating rod; 204a, fixed block; 204b, clamping ring; 204c, sliding groove; 205, positioning rod; 300, control assembly; 301, cam; 302, ejector member; 302a, ejector rod; 302b, support rod; 302c, spring; 303, mounting frame; 303a, center rod; 304, pawl member; 304a, pawl rod; 304b, pawl; 304c, notch; 305, trigger member; 305a, support; 305b, protruding block; 305c, limiting ring; 306, first ratchet; 306a, rotating disc; 307, trigger rod; 307a, limiting block; 307b, synapse; 308, second ratchet; 309, rotating disc; 310, upper computer. DETAILED DESCRIPTION

[0036] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0037] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, it will be apparent to one skilled in the art that the present application can be practiced without the specific details set forth in this description. In other instances, well-known methods, procedures, components, and circuits have not been described in detail so as not to unnecessarily obscure aspects of the present application.

[0038] Second, the "one embodiment" or "an embodiment" appearing in the specification herein indicates that a specific feature, structure, or characteristic described can be included in at least one implementation of the present application. The "in one embodiment" appearing in different places in the specification herein does not all refer to the same embodiment, nor is it an alternative embodiment mutually exclusive with other embodiments.

[0039] Third, the present application is described in detail in conjunction with the schematic drawings, and in the detailed description of the embodiments of the present application, the sectional view of the device structure is partially enlarged without the general proportion for the convenience of description, and the schematic drawings are only examples, which should not limit the scope of protection of the present application herein. In addition, the three-dimensional spatial dimensions of length, width and depth should be included in actual manufacture.

[0040] Embodiment 1

[0041] Reference Figures 1-10 For the first embodiment of the present application, a seven-plunger high-pressure pump is provided, which is composed of a plunger pump 100, a transmission assembly 200 and a control assembly 300. The plunger pump 100 includes a driving end 101, a hydraulic end 102, and a lubricant 103 connected with the hydraulic end 102. The transmission assembly 200 includes a transmission rod 201, a driving rod 202 fixed with the transmission rod 201, a fixed frame 203 sleeved outside the driving rod 202, a rotating rod 204 sleeved inside the driving rod 202, and a positioning rod 205. The control assembly 300 includes a cam 301 fixedly connected with the rotating rod 204, a spring member 302 abutting against the cam 301, a mounting frame 303 bearing the spring member 302, a pawl member 304 cooperatively connected with the spring member 302, a trigger member 305 fixed with the mounting frame 303, a first ratchet wheel 306 cooperatively connected with the pawl member 304, a trigger rod 307 arranged on the first ratchet wheel 306, a second ratchet wheel 308 cooperatively connected with the trigger rod 307, a rotating disc 309 fixed with the second ratchet wheel 308, and an upper computer 310 connected with the rotating disc 309.

[0042] The lubricant 103 is connected to the plunger in the hydraulic end 102, and an electromagnetic valve is arranged between the lubricant 103 and the hydraulic end 102; one end of the transmission rod 201 is fixed to the telescopic rod on the hydraulic end 102, and the other end is fixed to the driving rod 202; the outer wall of the driving rod 202 is symmetrically provided with a sliding strip 202a, and the positioning rod 205 is fixed to the driving rod 202; a groove 203a with the same shape and size as the sliding strip 202a is formed in the inner wall of the fixed frame 203, and the sliding strip 202a is slidably connected with the groove 203a. The end of the rotating rod 204 is further provided with a fixed block 204a, the end of the rotating rod 204 is rotatably arranged in the fixed block 204a, and the rotating rod 204 is further provided with a clamping ring 204b on the two sides of the fixed block 204a; a wave-shaped sliding groove 204c is formed around the rod of the rotating rod 204, and the positioning rod 205 is embedded in the sliding groove 204c.

[0043] Reference Figures 1-2 The seven-plunger high-pressure pump includes seven groups of plunger pumps 100, mainly including a motor, a shaft coupling and a transmission device and other core components, and through the cooperative action of these components, it is ensured that the plunger pump 100 can operate efficiently and stably. The driving end 101 adopts a crankshaft and a connecting rod, the crankshaft is driven to rotate by the motor, the linear reciprocating motion of the plunger is converted by the connecting rod, the crankshaft adopts a crank shaft design, the rotary motion can be converted into reciprocating linear motion, the crankshaft is connected with the plunger through the connecting rod, the thrust of the crankshaft is transmitted to the plunger, the rotary motion of the crankshaft is converted into the reciprocating motion of the plunger, generally, the rod section of the connecting rod adopts an I-shaped section, and the large head adopts a split structure. The hydraulic end 102 forms a sealed cavity by a pump cylinder and a plunger, and the suction and discharge of liquid are realized by the change of the internal space; the inlet valve and the outlet valve adopt a low-damping and conical structure, can transport liquid with large viscosity, can effectively reduce the viscosity, and the contact surface of the inlet valve and the outlet valve adopts high hardness and sealing performance, so that the inlet valve and the outlet valve have long service life. The working principle of the plunger pump is based on the reciprocating motion of the plunger, the total stroke L remains unchanged, and is determined by the lift of the camshaft. The size of the oil supply depends on the oil supply stroke, and this stroke is variable and not controlled by the camshaft. In addition, the starting and ending time of oil supply is relatively stable and will not change with the change of the oil supply stroke. By rotating the plunger, the ending time of oil supply can be adjusted, so that the flexible control of the oil supply amount is realized. The specific working principle of the plunger pump 100 is divided into two parts, the liquid suction process and the liquid discharge process. When the plunger moves backward, the internal space becomes larger to form a vacuum, the suction valve is opened, and the liquid is sucked into the pump cylinder; when the plunger moves forward, the internal space becomes smaller to generate high pressure, the discharge valve is opened, and the liquid is pressed into the output pipeline. The forward and backward movement of the plunger is realized by the linear reciprocating motion generated by the crank structure of the driving end 101. The driving end 101 is a key component of the plunger pump 100, and is responsible for providing the necessary driving force.

[0044] Reference Figures 8-10, the plunger pump 100 body drives the reciprocating movement of the plunger in the hydraulic end 102 through the driving end 101, in order to record the number of reciprocating movements of the plunger, the transmission rod 201 is fixedly connected with the driving rod 202 and the telescopic rod in the hydraulic end 102, that is, the reciprocating movement of the plunger can drive the driving rod 202 to move synchronously; when the driving rod 202 moves back and forth, since the sliding bar 202a is arranged on the driving rod 202, the sliding bar 202a is slidably connected in the groove 203a, so that the driving rod 202 can only move back and forth along the extension direction of the sliding bar 202a, and cannot rotate, and thus the positioning rod 205 arranged on the driving rod 202 also moves back and forth in the same direction; the positioning rod 205 is embedded in the sliding groove 204c, it should be noted that the rotating rod 204 is rotatably arranged in the fixed block 204a, and the clamping ring 204b is arranged on the rotating rod 204, the clamping ring 204b arranged on both sides of the fixed block 204a can fix the position of the rotating rod 204, and the rotating rod 204 will not move back and forth due to the movement of the driving rod 202, and at the same time, it is also ensured that the rotating rod 204 can rotate in the fixed block 204a; when the driving rod 202 moves back and forth to drive the positioning rod 205 to move synchronously, the sliding groove 204c will start to rotate, it should be noted that, referring to Figure 10 , the upper and lower profiles of the sliding groove 204c are different, which can ensure that the sliding groove 204c rotates in one direction and cannot be reversed; through the above scheme, the circular movement of the hydraulic end 102 can be converted into the one-way rotation of the rotating rod 204.

[0045] In order to count the number of rotations of the rotating rod 204, the cam 301 is fixedly connected with the end of the rotating rod 204, the elastic member 302 comprises an elastic rod 302a, a supporting rod 302b arranged on the elastic rod 302a and a spring 302c sleeved on the elastic rod 302a, the elastic rod 302a is slidably connected with the mounting frame 303, the supporting rod 302b is arranged on the side wall of the elastic rod 302a, one end of the spring 302c is fixedly connected with the bottom of the elastic rod 302a, and the other end is fixedly connected with the mounting frame 303; the bottom of the elastic rod 302a abuts against the cam 301. The pawl member 304 comprises a pawl rod 304a and a pawl 304b, a center rod 303a is arranged on the mounting frame 303, the pawl rod 304a is rotatably arranged on the center rod 303a, a notch 304c is further arranged on the pawl rod 304a, the supporting rod 302b is clamped into the notch 304c, one end of the pawl rod 304a is rotatably connected with the center rod 303a, and the other end is rotatably connected with the pawl 304b, a torsion spring is arranged in the pawl 304b, and the pawl 304b and the first ratchet wheel 306 form a ratchet mechanism. The trigger member 305 comprises a support 305a, a protrusion 305b arranged on the support 305a and a limiting ring 305c fixedly connected with the protrusion 305b, and the support 305a is fixedly connected with the mounting frame 303; the first ratchet wheel 306 is rotatably arranged on the center rod 303a, and the first ratchet wheel 306 is further fixedly connected with a rotating disc 306a rotatably arranged on the center rod 303a. A trigger rod 307 is rotatably arranged on the rotating disc 306a, a torsion spring is arranged in the trigger rod 307, the trigger rod 307, the protrusion 305b and the limiting ring 305c are in the same plane. The trigger rod 307 is provided with a limiting block 307a and a protruding contact 307b, the limiting block 307a abuts against the limiting ring 305c, and the protruding contact 307b can form a ratchet mechanism with the second ratchet wheel 308. The second ratchet wheel 308 is rotatably arranged on the center rod 303a, a rotating disc 309 is rotatably arranged on the center rod 303a, and the second ratchet wheel 308 is fixedly connected with the rotating disc 309. The upper computer 310 collects the rotation data of the rotating disc 309, and controls the opening and closing of the electromagnetic valve according to the rotation of the rotating disc 309.

[0046] Through the above scheme, reference Figures 11-17, when the rotating rod 204 rotates, the rotating rod 204 drives the cam 301 to rotate synchronously, when the cam 301 rotates, the ejection rod 302a abutting with it is lifted, due to the irregular shape of the cam 301, the cam 301 continuously lifts the ejection rod 302a, the spring 302c is arranged on the ejection rod 302a, so that the ejection rod 302a abuts with the cam 301; the ejection rod 302a can slide up and down in the mounting frame 303, drive the support rod 302b on the ejection rod 302a to move synchronously, and the support rod 302b is clamped into the notch 304c of the ratchet lever 304a, the ejection rod 302a can move the ratchet lever 304a through the support rod 302b to rotate up and down, the ratchet lever 304a rotates around the center rod 303a, when the ratchet lever 304a is driven counterclockwise by the support rod 302b, the pawl 304b is pulled counterclockwise from the first ratchet wheel 306, when the ratchet lever 304a is driven clockwise by the support rod 302b, the pawl 304b is pushed to be clamped into the tooth of the first ratchet wheel 306, so that the first ratchet wheel 306 rotates by a certain angle, it should be noted that the pawl 304b rotates counterclockwise without being clamped with the tooth of the first ratchet wheel 306, in order to ensure that the pawl 304b can be clamped into the next tooth after counterclockwise rotating over a tooth, the torsional spring is arranged in the pawl 304b, so that the pawl 304b abuts with the first ratchet wheel 306; through the above scheme, the rotation of the cam 301 can continuously drive the first ratchet wheel 306 to rotate, the first ratchet wheel 306 only rotates the angle driven by the pawl 304b each time, and the first ratchet wheel 306 and the rotating disc 306a are fixed, and both rotate on the center rod 303a, so that the rotating disc 306a is driven to rotate each time the first ratchet wheel 306 rotates, the trigger lever 307 is arranged on the rotating disc 306a, the rotation of the rotating disc 306a drives the trigger lever 307 to rotate synchronously, the protrusion 305b and the limiting ring 305c are arranged on the same plane of the trigger lever 307, the limiting ring 305c is fixedly installed with the mounting frame 303 through the support 305a, the limiting ring 305c is arranged outside the trigger lever 307, in order to ensure the normal operation of the trigger lever 307, the torsional spring is arranged in the trigger lever 307, so that the trigger lever 307 is kept outwardly stretched, that is, the limiting block 307a on the trigger lever 307 abuts with the limiting ring 305c.From the above scheme of the pawl piece 304, the rotating disc 306a will rotate in a cycle similar to the minute hand of a clock, and each time it is pushed by the pawl 304b by a certain angle, the trigger lever 307 located on the back of the rotating disc 306a will also rotate by a certain angle. When the trigger lever 307 rotates along the limiting ring 305c to the protrusion 305b, the limiting block 307a on the trigger lever 307 is pressed by the protrusion 305b, causing the trigger lever 307 to rotate towards the center of the center rod 303a, i.e. the protrusion 307b on the trigger lever 307 is inwardly clamped into the gear teeth of the second ratchet wheel 308, completing the embedding and clamping, and the trigger lever 307 continues to rotate to push the second ratchet wheel 308 to rotate synchronously. After the trigger lever 307 passes the protrusion 305b, the torsional spring makes the trigger lever 307 pop up again and fit with the limiting ring 305c, and the protrusion 307b is separated from the second ratchet wheel 308. As can be seen from the above scheme, the reciprocating motion of the hydraulic end 102 will drive the rotating disc 306a to rotate continuously, and each rotation is a certain angle. When the rotating disc 306a rotates one revolution, the trigger lever 307 will be pressed by the protrusion 305b, causing the second ratchet wheel 308 to rotate by a certain angle, thereby performing a count. When the hydraulic end 102 plunger reciprocating motion for a period of time, the trigger lever 307 will be clamped with the second ratchet wheel 308 once, driving the second ratchet wheel 308 to rotate by a certain angle. This process does not rely on digital circuits or detectors, but only monitors the reciprocating motion of the plunger through mechanical transmission, which is less prone to errors and has high reliability compared to digital circuits. Since the second ratchet wheel 308 and the rotating disc 309 are fixedly connected, when the second ratchet wheel 308 rotates, the rotating disc 309 rotates by a certain angle synchronously. The host computer 310 can obtain whether the reciprocating motion of the hydraulic end 102 plunger reaches the number of times of adding lubricant through the rotation of the rotating disc 309. Compared with monitoring the number of plunger movements, monitoring only the data of the rotating disc 309 is simpler and more reliable, and is less prone to errors. After the rotating disc 309 rotates for a period of time due to the movement of the plunger, the host computer 310 monitors the rotation data and controls the electromagnetic valve to be opened for a period of time and then closed. The lubricant enters the hydraulic end 102. For multiple plungers, only the reciprocating motion of one plunger can be collected, and the lubricant 103 is connected to each plunger. After the electromagnetic valve is opened, the lubricant is injected into each plunger.

[0047] The advantages of the present application are:

[0048] Efficient mechanical transmission: This scheme realizes the reciprocating motion count of the plunger through a mechanical transmission system (such as a ratchet mechanism and a cam mechanism), avoiding the dependence on electronic components, reducing the failure rate, and improving the reliability of the system.

[0049] Simplified control system: The number of reciprocating movements of the plunger is monitored by a mechanical method, reducing the dependence on complex digital circuits or sensors, making the system design more simple, and reducing the difficulty of maintenance and troubleshooting.

[0050] Precise Lubrication Control: The host computer 310 can accurately control the opening and closing of the electromagnetic valve by monitoring the data of the rotating disc 309, thereby achieving precise lubrication of the hydraulic end 102, ensuring that each plunger is timely lubricated, and prolonging the service life of the equipment.

[0051] High Reliability: Due to the use of mechanical transmission and simple control logic, the system is less prone to errors and can operate stably in more severe working environments compared to electronic control systems.

[0052] Strong Adaptability: The design of the pump can adapt to multiple plunger configurations, effectively providing lubrication for multiple plungers and meeting the needs of different working conditions.

[0053] Energy and Cost Savings: By optimizing the lubricant addition process, unnecessary waste is reduced, and operating costs are lowered. Meanwhile, the simplification of the mechanical structure also helps to reduce manufacturing and maintenance costs.

[0054] Easy Monitoring and Maintenance: The design of the mechanical transmission system makes monitoring and maintenance more intuitive, allowing operators to easily perform routine inspections and maintenance to ensure the normal operation of the equipment.

[0055] Enhanced Safety: As the system design reduces the dependence on electrical components, it reduces the safety hazards caused by electrical failures, enhancing the overall safety.

[0056] Importantly, it should be noted that the configurations and arrangements of the present application shown in the various different example embodiments are merely illustrative. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperatures, pressures, etc.), mounting arrangements, use of materials, colors, orientations, etc.) using no more than the common general knowledge of the art to which this application pertains. For example, elements shown as integrally formed can be constructed of multiple parts or elements, the position of elements can be reversed or otherwise varied, and the nature or number of discrete elements or positions can be altered or varied. Accordingly, all such modifications are intended to be included within the scope of the present application. The order or sequence of any process or method steps can be varied or re-sequenced according to alternative embodiments. Any "means plus function" clauses are intended to cover the structures described herein as performing the recited functions and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes, and omissions can be made in the design, operating conditions, and arrangement of the exemplary embodiments without departing from the scope of the present application. Accordingly, the present application is not limited to the particular embodiments described but extends to the scope of the appended claims.

[0057] Furthermore, in the interest of providing a concise description of illustrative embodiments, not all features of an actual implementation can be described (i.e., those pertaining to the best mode for carrying out the application currently under consideration, or those that are not relevant to enabling the application).

[0058] It is to be understood that the development of the exemplary embodiments can not be limited to the exact construction that is described above and depicted in the drawings, and that numerous other modifications can be utilized.

[0059] It should be noted that the above examples are only used to illustrate the technical solutions of the present application but not to limit the present application, and although the present application is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present application, and all should be covered in the scope of the claims of the present application.

Claims

1. A seven-piston high-pressure pump, characterized in that The utility model relates to a plunger pump (100) including a driving end (101), a hydraulic end (102), a lubricant (103) connected with the hydraulic end (102), a transmission assembly (200) including a transmission rod (201), a driving rod (202) fixed with the transmission rod (201), a fixed frame (203) sleeved outside the driving rod (202), a rotating rod (204) and a positioning rod (205) sleeved inside the driving rod (202), a control assembly (300) including a cam (301) fixedly connected with the rotating rod (204), a spring member (302) abutting against the cam (301), a mounting frame (303) bearing the spring member (302), a pawl member (304) cooperatively connected with the spring member (302), a trigger member (305) fixed with the mounting frame (303), a first ratchet wheel (306) cooperated with the pawl member (304), a trigger rod (307) arranged on the first ratchet wheel (306), a second ratchet wheel (308) cooperated with the trigger rod (307), a rotating disc (309) fixed with the second ratchet wheel (308), and an upper computer (310) connected with the rotating disc (309). The lubricant (103) is connected into the plunger of the hydraulic end (102), and an electromagnetic valve is further arranged between the lubricant (103) and the hydraulic end (102); one end of the transmission rod (201) is fixed with a telescopic rod in the hydraulic end (102), and the other end is fixed with the driving rod (202); symmetrically arranged on the outer wall of the driving rod (202) are sliding strips (202a), and the positioning rod (205) is fixed on the driving rod (202); a groove (203a) with the same shape and size as the sliding strip (202a) is formed in the inner wall of the fixed frame (203), and the sliding strip (202a) is in sliding connection with the groove (203a); The end of the rotating rod (204) is further provided with a fixed block (204a), the end of the rotating rod (204) is rotatably arranged in the fixed block (204a), and the rotating rod (204) is further provided with a clamping ring (204b) on both sides of the fixed block (204a); a wave-shaped sliding groove (204c) is formed around the rod part of the rotating rod (204), and the positioning rod (205) is embedded in the sliding groove (204c); The cam (301) is fixedly connected with the end of the rotating rod (204), the spring member (302) includes a shooting rod (302a), a supporting rod (302b) arranged on the shooting rod (302a) and a spring (302c) sleeved outside the shooting rod (302a), the shooting rod (302a) is in sliding connection with the mounting frame (303), the supporting rod (302b) is arranged on the side wall of the shooting rod (302a), one end of the spring (302c) is fixed with the bottom of the shooting rod (302a), and the other end is fixed with the mounting frame (303); the bottom of the shooting rod (302a) abuts against the cam (301). ​ ​ ​ The pawl piece (304) comprises a pawl rod (304a) and a pawl (304b), the mounting frame (303) is provided with a center rod (303a), the pawl rod (304a) is rotationally arranged on the center rod (303a), the pawl rod (304a) is further provided with a notch (304c), the supporting rod (302b) is clamped into the notch (304c), one end of the pawl rod (304a) is rotationally connected with the center rod (303a), and the other end is rotationally connected with the pawl (304b), the pawl (304b) is provided with a torsion spring, and the pawl (304b) and the first ratchet wheel (306) form a ratchet mechanism.

2. The seven-piston high-pressure pump of claim 1, characterized in that: The trigger piece (305) comprises a support (305a), a protrusion (305b) arranged on the support (305a) and a limiting ring (305c) fixed on the protrusion (305b), and the support (305a) is fixedly connected with the mounting frame (303); the first ratchet wheel (306) is rotationally arranged on the center rod (303a), and the first ratchet wheel (306) is further fixedly connected with a rotating disc (306a), and the rotating disc (306a) is rotationally arranged on the center rod (303a).

3. The seven-piston high-pressure pump according to claim 2, characterized in that: The rotating disc (306a) is rotationally arranged with the trigger rod (307), the trigger rod (307) is provided with a torsion spring, and the trigger rod (307), the protrusion (305b) and the limiting ring (305c) are in the same plane.

4. The seven-piston high-pressure pump of claim 3, characterized in that: The trigger rod (307) is provided with a limiting block (307a) and a synaptic knob (307b), the limiting block (307a) abuts against the limiting ring (305c), and the synaptic knob (307b) can form a ratchet mechanism with the second ratchet wheel (308).

5. The seven-piston high-pressure pump according to claim 4, characterized in that: The second ratchet wheel (308) is rotationally arranged on the center rod (303a), the rotating disc (309) is rotationally arranged on the center rod (303a), and the second ratchet wheel (308) is fixedly connected with the rotating disc (309).

6. The seven-piston high-pressure pump of claim 5, characterized in that: The upper computer (310) collects rotation data of the rotating disc (309) and controls opening and closing of the electromagnetic valve according to rotation of the rotating disc (309).

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