Piston type lubricating pump

Abstract

The utility model discloses a piston type lubricating pump which comprises a pump body assembly, a valve element assembly and a driving assembly. The pump body assembly comprises a valve block; a liquid inlet and a liquid outlet are formed in the valve block, an insertion hole is formed in the valve block, and the valve element assembly is installed in the insertion hole; the valve element assembly comprises a cylinder body, a piston rod, a valve element mechanism and a valve seat mechanism. The cylinder body is connected with the valve seat mechanism, a liquid inlet channel and a piston cavity are formed in the cylinder body, the liquid inlet channel communicates with the liquid inlet and the piston cavity, the valve element mechanism is arranged in the liquid inlet channel, the first end of the piston rod is connected with the driving assembly, and the second end of the piston rod is located in the piston cavity. Liquid in the liquid inlet channel can enter the piston cavity through the valve element mechanism and push the liquid in the piston cavity into the valve seat mechanism, and the valve seat mechanism communicates with the liquid outlet. The lubricating pump is small in size and simple in structure, replaces a traditional pneumatic oil supply mode, and rapidly provides lubricating agents for the drill jumbo.

Description

TECHNICAL FIELD

[0001] The utility model relates to a lubrication pump, in particular to a piston type lubrication pump. BACKGROUND

[0002] The lubrication pump is a kind of lubricating equipment, and lubricant is supplied to lubrication site.The mechanical equipment needs to be lubricated regularly, and the previous lubrication main mode is artificial lubrication according to the working condition of equipment, reaches certain maintenance cycle, such as commonly said buttering.Lubrication pump can make this maintenance work more convenient.Lubrication pump is divided into manual lubrication pump and electric lubrication pump.At present, the oil output of the lubrication system of most rock drilling jumbo host factories adopts pneumatic mode, and this mode leads to that the volume of lubrication system is relatively large, and relatively large space is needed in vehicle to place lubrication system, therefore, it is particularly important to design a piston type lubrication pump to replace pneumatic oil supply mode. SUMMARY

[0003] According to the utility model embodiments, a piston type lubrication pump is provided, comprising: pump body assembly, valve core assembly and driving assembly;

[0004] Pump body assembly includes: valve block;

[0005] Valve block is provided with inlet and outlet, and the valve block is provided with a socket, and the valve core assembly is installed in the socket;

[0006] Valve core assembly includes: cylinder, piston rod, valve core mechanism and valve seat mechanism;

[0007] Cylinder is connected with valve seat mechanism, and inlet channel and piston cavity are formed in the cylinder, the inlet channel is communicated with inlet and piston cavity, the valve core mechanism is arranged in the inlet channel, the first end of piston rod is connected with driving assembly, and the second end is located in piston cavity, under the driving of driving assembly, the liquid in inlet channel can enter piston cavity through valve core mechanism, and the liquid in piston cavity is pushed into valve seat mechanism, and valve seat mechanism is communicated with outlet.

[0008] Further, the valve core mechanism includes: valve core base, one-way valve core and valve core spring;

[0009] Valve core base is fixed on the inner wall of inlet channel, one end of valve core spring is connected with valve core base, and the other end is connected with one-way valve core, and valve core spring is used to close one-way valve core.

[0010] Further, the valve seat mechanism includes: one-way valve seat, valve ball, valve cavity spring and pin shaft;

[0011] One end of the one-way valve seat is connected with the cylinder body, a valve cavity is formed in the one-way valve seat, one end of the valve cavity is communicated with the piston cavity, the other end of the valve cavity is communicated with the liquid outlet, the valve ball is arranged in the valve cavity and located at the communication position of the valve cavity and the piston cavity, the pin shaft is arranged on the one-way valve seat and vertically penetrates the valve cavity, one end of the valve cavity spring is fixed on the pin shaft and the other end of the valve cavity spring abuts against one side of the valve ball.

[0012] Further, the valve seat mechanism further comprises a sealing ring.

[0013] The sealing ring is sleeved on the outside of the one-way valve seat and located between the one-way valve seat and the valve block, and is used for blocking the liquid at the liquid inlet from passing through the gap between the one-way valve seat and the valve block.

[0014] Further, the driving assembly comprises a driving mechanism, a reset mechanism and a driving rod.

[0015] One end of the driving rod is connected with the first end of the piston rod, under the driving of the driving mechanism, the driving rod pulls the piston rod to move out of the piston cavity, and under the driving of the reset mechanism, the driving rod pushes the piston rod to move into the piston cavity.

[0016] Further, the driving mechanism comprises a driving shell, a valve sleeve and an electromagnetic coil.

[0017] One end of the driving shell is connected with the valve sleeve, the valve sleeve is connected with the cylinder body and the valve block, one end of the valve sleeve is located between the cylinder body and the valve block, the electromagnetic coil is located in the driving shell, the driving shell is provided with a driving chamber, and the reset mechanism and the driving rod are arranged in the driving chamber.

[0018] Further, the driving rod is a hollow structure, one end of the reset mechanism is connected with the inner wall of the driving chamber and the other end of the reset mechanism is located in the driving rod.

[0019] Further, the driving rod is made of metal material.

[0020] Further, the pump body assembly comprises a joint body.

[0021] The first end of the joint body is connected with the valve block, the second end of the joint body is provided with a first liquid outlet, the joint body is provided with a liquid outlet channel, the valve block is provided with a second liquid outlet, and the liquid outlet channel is communicated with the valve seat mechanism, the first liquid outlet and the second liquid outlet.

[0022] Further, at least two liquid inlets are formed in the valve block, the two liquid inlets are communicated with the liquid inlet channel, and the valve core mechanism is located at the communication position of the liquid inlet channel and the piston cavity.

[0023] According to the piston type lubricating pump, the piston rod is driven to move out of the cylinder body by the driving assembly, the lubricant enters the liquid inlet channel from the liquid inlet, the lubricant in the liquid inlet channel can enter the piston cavity through the valve core mechanism due to the negative pressure formed in the piston cavity, the piston rod is driven to move into the cylinder body by the driving assembly, the positive pressure is formed in the piston cavity, the lubricant in the piston cavity is pushed into the valve seat mechanism, the lubricant in the valve seat mechanism is discharged through the liquid outlet, the lubricating pump is small in size, simple in structure, and can replace the traditional pneumatic oil supply mode to quickly provide the lubricant for the drill jumbo.

[0024] It is to be understood that both the foregoing general description and the following detailed description are exemplary and intended to provide further explanation of the subject technology claimed. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a structural view of the piston type lubricating pump according to the embodiment of the utility model;

[0026] Figure 2 It is a sectional view of the piston type lubricating pump according to the embodiment of the utility model;

[0027] Figure 3 It is a sectional view of the valve core assembly of the piston type lubricating pump according to the embodiment of the utility model;

[0028] Figure 4 It is a structural view of another piston type lubricating pump according to the embodiment of the utility model;

[0029] Figure 5 It is a structural view of another piston type lubricating pump according to the embodiment of the utility model;

[0030] Figure 6 It is a circuit diagram of the piston type lubricating pump according to the embodiment of the utility model.

[0031] In the drawing, 1 is a pump body assembly, 11 is a valve block, 12 is a joint body, 2 is a valve core assembly, 21 is a cylinder body, 22 is a piston rod, 23 is a valve core base, 24 is a one-way valve core, 25 is a valve core spring, 3 is a driving assembly, 31 is a driving shell, 32 is a valve sleeve, 33 is an electromagnetic coil, 34 is a reset mechanism, 35 is a driving rod, 41 is a one-way valve seat, 42 is a valve ball, 43 is a valve cavity spring, 44 is a pin shaft, and 45 is a sealing ring. DETAILED DESCRIPTION

[0032] The preferred embodiments of the utility model will be described in detail below with reference to the drawings, and the utility model will be further described.

[0033] Firstly, the preferred embodiments of the utility model will be described in detail below with reference to the drawings, and the utility model will be further described. Figures 1-6The utility model discloses a piston type lubricating pump for providing lubricant for a rock drilling jumbo.

[0034] As Figures 1-6 The utility model discloses a piston type lubricating pump, which comprises a pump body assembly 1, a valve core assembly 2 and a driving assembly 3.

[0035] The pump body assembly 1 comprises a valve block 11.

[0036] The valve block 11 is provided with a liquid inlet and a liquid outlet, and a socket is formed in the valve block 11, and the valve core assembly 2 is installed in the socket.

[0037] The valve core assembly 2 comprises a cylinder body 21, a piston rod 22, a valve core mechanism and a valve seat mechanism.

[0038] The cylinder body 21 is connected with the valve seat mechanism, and the cylinder body 21 is provided with a liquid inlet channel and a piston cavity, the liquid inlet channel is communicated with the liquid inlet and the piston cavity, the valve core mechanism is arranged in the liquid inlet channel, the first end of the piston rod 22 is connected with the driving assembly 3, and the second end is located in the piston cavity, under the driving of the driving assembly 3, the liquid in the liquid inlet channel can enter the piston cavity through the valve core mechanism, and the liquid in the piston cavity is pushed into the valve seat mechanism, and the valve seat mechanism is communicated with the liquid outlet.

[0039] The piston rod 22 is driven by the driving assembly 3 to move outwards from the cylinder body 21, so that the lubricant enters the liquid inlet channel from the liquid inlet, due to the negative pressure formed in the piston cavity, the lubricant in the liquid inlet channel can enter the piston cavity through the valve core mechanism, the piston rod 22 is driven by the driving assembly 3 to move inwards from the cylinder body 21, a positive pressure is formed in the piston cavity, and the lubricant in the piston cavity is pushed into the valve seat mechanism, the lubricant in the valve seat mechanism is discharged through the liquid outlet, the lubricant is provided for the rock drilling jumbo, the whole lubricating pump is small in size and simple in structure, and the traditional pneumatic oil supply mode is replaced, so that the lubricant is quickly provided for the rock drilling jumbo.

[0040] In the embodiment, the piston rod 22 is made of GCr15 material, the cylinder body 21, the valve core mechanism and the valve seat mechanism are made of 3Cr13 material and are subjected to nitriding treatment, so that the surface hardness, wear resistance and fatigue strength are improved, and the service life is longer.

[0041] As Figures 2-3 The valve core mechanism comprises a valve core base 23, a one-way valve core 24 and a valve core spring 25.

[0042] The valve core base 23 is fixed on the inner wall of the liquid inlet channel, one end of the valve core spring 25 is connected with the valve core base 23, the other end is connected with the one-way valve core 24, and the valve core spring 25 is used to close the one-way valve core 24.

[0043] Without external force, the one-way valve core 24 can block the lubricant from entering the piston cavity due to the action of the valve core spring 25. When a negative pressure is formed in the piston cavity, the one-way valve core 24 is opened due to the negative pressure, so that the lubricant can enter the piston cavity. When a positive pressure is formed in the piston cavity, the one-way valve core 24 is closed due to the positive pressure.

[0044] As shown in Figures 2-3 , the valve seat mechanism comprises a one-way valve seat 41, a valve ball 42, a valve cavity spring 43 and a pin shaft 44.

[0045] One end of the one-way valve seat 41 is connected with the cylinder body 21, a valve cavity is formed in the one-way valve seat 41, one end of the valve cavity is communicated with the piston cavity, and the other end is communicated to the liquid outlet, the valve ball 42 is arranged in the valve cavity and located at the communication between the valve cavity and the piston cavity, the pin shaft 44 is arranged on the one-way valve seat 41 and vertically penetrates the valve cavity, and one end of the valve cavity spring 43 is fixed on the pin shaft 44 and the other end is abutted on one side of the valve ball 42.

[0046] When a positive pressure is formed in the piston cavity, the lubricant in the piston cavity will push the valve ball 42, so that the lubricant enters the valve cavity and can enter the liquid outlet through the valve cavity. The elastic force of the valve cavity spring 43 makes the valve ball 42 block the communication between the piston cavity and the valve cavity, so as to avoid the lubricant entering the valve cavity under the condition of non-positive pressure.

[0047] As shown in Figures 2-3 , the valve seat mechanism further comprises a sealing ring 45.

[0048] The sealing ring 45 is sleeved on the outside of the one-way valve seat 41, and is located between the one-way valve seat 41 and the valve block 11, so as to block the liquid at the liquid inlet from passing through the gap between the one-way valve seat 41 and the valve block 11.

[0049] The sealing ring 45 can avoid the lubricant entering the liquid inlet from passing through the gap between the one-way valve seat 41 and the valve block 11, so as to avoid the lubricant entering the liquid outlet without passing through the valve core assembly 2 and causing the phenomenon of liquid leakage.

[0050] As shown in Figure 2 , the driving assembly 3 comprises a driving mechanism, a reset mechanism 34 and a driving rod 35.

[0051] One end of the driving rod 35 is connected with the first end of the piston rod 22, under the driving of the driving mechanism, the driving rod 35 pulls the piston rod 22 to move out of the piston cavity, and under the driving of the reset mechanism 34, the driving rod 35 pushes the piston rod 22 to move into the piston cavity.

[0052] The driving mechanism comprises a driving housing 31, a valve sleeve 32 and an electromagnetic coil 33; one end of the driving housing 31 is connected with the valve sleeve 32, the valve sleeve 32 is connected with the cylinder body 21 and the valve block 11, one end of the valve sleeve 32 is located between the cylinder body 21 and the valve block 11, the electromagnetic coil 33 is located in the driving housing 31, the driving housing 31 is provided with a driving chamber, and the reset mechanism 34 and the driving rod 35 are both arranged in the driving chamber.

[0053] The driving rod 35 is a hollow structure, one end of the reset mechanism 34 is connected with the inner wall of the driving chamber and the other end is located in the driving rod 35.

[0054] Under the condition of power-on, the electromagnetic coil 33 drives the driving rod 35 to move out of the piston cavity, so that a negative pressure is formed in the piston cavity; under the condition of power-off, the reset mechanism 34 drives the driving rod 35 to move into the piston cavity, so that a positive pressure is formed in the piston cavity.

[0055] As shown in Figures 1-6 , the pump body assembly 1 comprises a joint body 12;

[0056] The first end of the joint body 12 is connected with the valve block 11, the second end is provided with a first liquid outlet, the joint body 12 is provided with a liquid outlet channel, the valve block 11 is provided with a second liquid outlet, and the liquid outlet channel is communicated with the valve seat mechanism, the first liquid outlet and the second liquid outlet.

[0057] The valve block 11 is provided with at least two liquid inlets, the two liquid inlets are communicated with a liquid inlet channel, and the valve core mechanism is located at the communication position of the liquid inlet channel and the piston cavity.

[0058] In the embodiment, the liquid inlets are SC and C, as shown in Figure 1 and Figure 5 , the liquid outlets are L as the first liquid outlet and G as the second liquid outlet.

[0059] The piston type lubricating pump according to the embodiment of the utility model is described above with reference to Figures 1-6 , the piston rod 22 is driven by the driving assembly 3 to move out of the cylinder body 21, so that the lubricant enters the liquid inlet channel from the liquid inlet, due to the negative pressure formed in the piston cavity, the lubricant in the liquid inlet channel can enter the piston cavity through the valve core mechanism, the piston rod 22 is driven by the driving assembly 3 to move into the cylinder body 21, so that the positive pressure is formed in the piston cavity, the lubricant in the piston cavity is pushed into the valve seat mechanism, and the lubricant in the valve seat mechanism is discharged through the liquid outlet, thereby providing the lubricant for the rock drilling jumbo, the whole lubricating pump has small volume and simple structure, and replaces the traditional pneumatic oil supply mode to quickly provide the lubricant for the rock drilling jumbo.

[0060] It should be noted that in the present specification, the terms "comprising", "containing" or any other variant 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 can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without more limitations, the elements defined by the phrase "comprising" do not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes the elements.

[0061] Although the content of the present application has been described in detail by the above preferred embodiments, it should be recognized that the above description should not be considered as a limitation of the present application. After reading the above content, various modifications and alternatives of the present application will be apparent to those skilled in the art. Therefore, the protection scope of the present application should be defined by the appended claims.

Claims

1. A piston-type lubrication pump, characterized in that, The utility model provides a pump body assembly, valve core assembly and drive assembly, and the utility model relates to pump technology fields. The pump body assembly comprises a valve block. The valve block is provided with an inlet and an outlet, and a socket is formed in the valve block. The valve core assembly is installed in the socket. The valve core assembly comprises a cylinder, a piston rod, a valve core mechanism and a valve seat mechanism. The cylinder is connected with the valve seat mechanism. The cylinder is provided with a liquid inlet channel and a piston cavity. The liquid inlet channel is connected with the inlet and the piston cavity.

2. A piston type lubrication pump as claimed in claim 1, characterized in that The valve core mechanism is arranged in the liquid inlet channel. The first end of the piston rod is connected with the drive assembly. The second end of the piston rod is located in the piston cavity.

3. A piston type lubrication pump as claimed in claim 1, wherein The liquid in the liquid inlet channel can enter the piston cavity through the valve core mechanism under the drive of the drive assembly. The liquid in the piston cavity can be pushed into the valve seat mechanism.

4. A piston type lubrication pump as claimed in claim 3, characterized in that The valve seat mechanism is connected with the outlet. The valve core mechanism comprises a valve core base, a one-way valve core and a valve core spring.

5. A piston type lubrication pump as claimed in claim 4, characterized in that One end of the valve core spring is connected with the valve core base.

6. A piston type lubrication pump as claimed in claim 3, wherein The other end of the valve core spring is connected with the one-way valve core.

7. A piston type lubrication pump as claimed in claim 1, wherein The valve core spring is used to close the one-way valve core. The valve seat mechanism comprises a one-way valve seat, a valve ball, a valve cavity spring, a pin shaft and a sealing ring.

8. A piston type lubrication pump as claimed in claim 1, wherein One end of the one-way valve seat is connected with the cylinder. The one-way valve seat is provided with a valve cavity. One end of the valve cavity is connected with the piston cavity. The other end of the valve cavity is connected with the outlet. The valve ball is arranged in the valve cavity. The valve ball is located at the connection between the valve cavity and the piston cavity. The pin shaft is arranged on the one-way valve seat. The pin shaft vertically penetrates the valve cavity. One end of the valve cavity spring is fixed on the pin shaft. The other end of the valve cavity spring abuts against one side of the valve ball. The sealing ring is arranged on the outside of the one-way valve seat. The sealing ring is located between the one-way valve seat and the valve block. The sealing ring is used to block the liquid at the inlet from passing through the gap between the one-way valve seat and the valve block. The drive assembly comprises a drive mechanism, a reset mechanism and a drive rod. One end of the drive rod is connected with the first end of the piston rod. Under the drive of the drive mechanism, the drive rod pulls the piston rod to move out of the piston cavity. Under the drive of the reset mechanism, the drive rod pushes the piston rod to move into the piston cavity. The drive mechanism comprises a drive shell, a valve sleeve and an electromagnetic coil. One end of the drive shell is connected with the valve sleeve. The valve sleeve is connected with the cylinder and the valve block. One end of the valve sleeve is located between the cylinder and the valve block. The electromagnetic coil is arranged in the drive shell. The drive shell is provided with a drive chamber. The reset mechanism and the drive rod are arranged in the drive chamber. The drive rod is a hollow structure. One end of the reset mechanism is connected with the inner wall of the drive chamber. The other end of the reset mechanism is located in the drive rod. The drive rod is made of metal material. The pump body assembly comprises a joint body. One end of the joint body is connected with the valve block. The second end of the joint body is provided with a first outlet. The joint body is provided with a liquid outlet channel. The valve block is provided with a second outlet. The liquid outlet channel is connected with the valve seat mechanism, the first outlet and the second outlet. The valve block is provided with at least two inlets. The two inlets are connected with the liquid inlet channel. The valve core mechanism is located at the connection between the liquid inlet channel and the piston cavity.

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