CN111779963B

CN111779963B - Automatic lubricating device

Info

Publication number: CN111779963B
Application number: CN202010668819.0A
Authority: CN
Inventors: 邵安仓; 李昌健; 范常春
Original assignee: Qingdao Pangu Intelligent Manufacturing Co Ltd
Current assignee: Qingdao Pangu Intelligent Manufacturing Co Ltd
Priority date: 2020-07-13
Filing date: 2020-07-13
Publication date: 2021-04-30
Anticipated expiration: 2040-07-13
Also published as: CN111779963A

Abstract

The invention provides an automatic lubricating device, which comprises a lubricating grease cylinder, a valve body, a pump core, a driving part and a camshaft assembly, wherein the lubricating grease cylinder is arranged on the valve body; the lubricating grease cylinder is detachably arranged on the valve body along the vertical direction and is communicated with a grease suction port B of the pump core; the pump core is arranged in the valve body and pumps the lubricating grease to the lubricating grease outlet a of the valve body through the lubricating grease conveying channel in the valve body; the camshaft assembly is rotatably arranged in the valve body and used for driving the pump core to pump lubricating grease to the lubricating grease outlet a of the valve body; the driving part is arranged on the valve body and is in transmission connection with the camshaft assembly; the driving component is used for driving the camshaft assembly to rotate in a unidirectional reciprocating manner; the scheme provided by the invention can completely replace manual lubricating grease filling, does not need stopping filling, saves labor, improves the production efficiency, can continuously and uniformly supply the lubricating grease, and avoids the condition of insufficient lubrication or excessive lubrication, thereby prolonging the service life of the hydraulic tool, reducing the production cost and preventing the environment from being polluted due to excessive filling.

Description

Automatic lubricating device

Technical Field

The invention belongs to the technical field of lubricating devices, and particularly relates to an automatic lubricating device.

Background

At present, most of lubricating grease of hydraulic tools, such as a hydraulic breaking hammer, a hydraulic grab and the like, generally adopts a method of manually injecting grease by a grease gun, but the manual injection has the following defects and problems:

firstly, manual injection is used, a hydraulic tool needs to stop working, the production efficiency is seriously influenced, and the labor intensity and the cost of the manual operation are increased;

secondly, the time interval of oil injection is not guaranteed, and the situation that the oil injection is forgotten to be filled on time often occurs;

thirdly, the oil injection amount cannot be ensured to be uniform and sufficient; the oil injection amount is too small, and a good lubricating effect cannot be achieved; if the amount of the oil is too large, environmental pollution will be caused.

Based on the technical problems in the lubricating grease injection of the hydraulic tool, no related solution is provided; there is therefore a pressing need to find effective solutions to the above problems.

Disclosure of Invention

The invention aims to provide an automatic lubricating device aiming at the defects in the prior art, and aims to solve one of the problems that the lubricating grease of the existing hydraulic tool is low in lubricating grease injection efficiency, high in strength, high in cost, incapable of ensuring the lubricating grease injection time and wasteful in lubricating grease injection.

The invention provides an automatic lubricating device, which comprises a lubricating grease cylinder, a valve body, a pump core, a driving part and a camshaft assembly, wherein the lubricating grease cylinder is arranged on the valve body; the lubricating grease cylinder is detachably arranged on the valve body along the vertical direction and is communicated with a grease suction port B of the pump core; the pump core is arranged in the valve body and pumps the lubricating grease to the lubricating grease outlet a of the valve body through the lubricating grease conveying channel in the valve body; the camshaft assembly is rotatably arranged in the valve body and used for driving the pump core to pump lubricating grease to the lubricating grease outlet a of the valve body; the driving part is arranged on the valve body and is in transmission connection with the camshaft assembly; the driving part is used for driving the camshaft assembly to rotate in a one-way reciprocating mode, and therefore the pump core is driven to pump grease.

Further, the driving part is a stepping driving motor; the valve body is also provided with a valve body hydraulic oil inlet b and a valve body hydraulic oil outlet c; the valve body hydraulic oil inlet b is communicated with a motor hydraulic oil inlet I of the stepping drive motor through a valve body internal hydraulic oil flow passage; the valve body hydraulic oil outlet c is communicated with a motor hydraulic oil outlet O of the stepping drive motor through a valve body internal hydraulic oil flow passage; the stepping drive motor drives the plunger inside through hydraulic oil and drives the camshaft assembly to rotate in a one-way reciprocating mode through the plunger.

Further, the stepping drive motor comprises a motor valve body, a first control plunger, a second control plunger and a drive plunger; a supporting seat is arranged at the bottom of the motor valve body in an extending mode, a spring upright post is arranged on the supporting seat in the horizontal direction, and a second return spring is sleeved on the spring upright post; the driving plunger is movably arranged in a first cavity of the motor valve body and extends outwards to be opposite to the second return spring; the second control plunger is movably arranged in a second cavity of the motor valve body; the first control plunger is movably arranged in the third cavity of the motor valve body; the first cavity and the second cavity are communicated when the driving plunger moves from one end to the other end, the second cavity and the third cavity are communicated when the second control plunger moves from one end to the other end, and the third cavity and the motor hydraulic oil outlet O are communicated when the first control plunger moves from one end to the other end; the driving plunger, the second control plunger and the first control plunger are driven by hydraulic oil to move, so that the camshaft assembly is driven to rotate in a one-way reciprocating mode.

Further, the camshaft assembly comprises a first one-way bearing, a cam outer sleeve, a driving ring, a deep groove ball bearing, a camshaft and a second one-way bearing; the first one-way bearing is sleeved at the upper end of the camshaft, and the deep groove ball bearing is sleeved at the lower end of the camshaft; the camshaft is rotatably arranged in the valve body around the first one-way bearing and the deep groove ball bearing along the vertical direction; a straight handle is arranged on the driving ring, the driving ring is sleeved on the camshaft through a second one-way bearing, and the straight handle is arranged between the driving plunger and a second return spring; the cam outer sleeve is eccentrically sleeved on the cam shaft and is tightly connected with the cam shaft.

Further, the pump core comprises a pump core body, a one-way valve, a grease pumping plunger, a first return spring and a spacer; the pump core body is arranged in the valve body along the horizontal direction, and a lubricating grease pump cavity is formed in the pump core body; the grease suction port B is arranged on the pump core body and is communicated with the lubricating grease pump cavity; the pump core body is also provided with a grease discharging port A which is communicated with the lubricating grease pump cavity; the grease discharging port A is communicated with the grease outlet a through a grease passage of the valve body; the one-way valve is arranged in the lubricating grease pump cavity and is positioned at the grease discharging port A; the grease pumping plunger is arranged in the grease pumping cavity in a telescopic manner and is positioned at one end of the grease sucking port B; one end of the pump grease plunger extends out of the pump core body, and the spacer is arranged at one end of the pump grease plunger extending out of the pump core body; the first reset spring is sleeved at one end of the pump core body, and one end of the first reset spring is abutted against the separating pad, so that the pump grease plunger is driven to reset.

Furthermore, a hydraulic oil filter is arranged on the valve body and positioned at a hydraulic oil inlet b of the valve body; and a regulating valve is arranged on the valve body before the hydraulic oil outlet c of the valve body.

Further, the lubricating grease cylinder comprises a shell, an inner piston assembly, a one-way sealing pin, a grease sucking joint, a one-way bolt, an outer piston assembly and an outer piston compression spring; a lubricating grease storage cavity is arranged in the shell; an acrylic inner tube is arranged in the lubricating grease storage cavity along the vertical direction, and the inner piston assembly is arranged in the acrylic inner tube in a telescopic manner along the vertical direction; the grease suction joint is arranged at the bottom of the shell, the one-way bolt column is arranged in the grease suction joint along the vertical direction, one end of the one-way bolt column is abutted to the through cavity of the lower end cover at the bottom of the shell through the bolt column reset spring and can open or close the through cavity of the lower end cover, and the through cavity is used for communicating the grease suction joint and the acrylic inner tube; the one-way sealing pin column is arranged on a grease supplementing channel in the lower end cover through a sealing pin column return spring and can open or close the grease supplementing channel, and the grease supplementing channel is used for communicating the lubricating grease storage cavity with the acrylic inner tube; the outer piston assembly is slidably arranged in the lubricating grease storage cavity along the vertical direction; outer piston compression spring sets up in lubricating grease storage chamber along vertical direction to outer piston compression spring's bottom butt is on outer piston assembly.

Furthermore, the lubricating grease cylinder also comprises a handle and an acrylic outer tube, the acrylic outer tube is arranged in the shell, a lubricating grease storage cavity is formed in the acrylic outer tube, and a plurality of windows are arranged on the shell along the vertical direction; the top of the shell is provided with an upper end cover which is sleeved with an upper nut cover; a lower nut cover is sleeved on the lower end cover; the handle is fixedly arranged at the top of the inner piston assembly.

Furthermore, a pressure relief valve is arranged below the lubricating grease outlet a on the valve body, and an installation opening of the pressure relief valve is communicated with the lubricating grease outlet a.

Furthermore, a manual grease supplementing joint and a quick grease supplementing joint are also arranged on the valve body; when the automatic lubricating device breaks down, the manual grease filling joint can be used for carrying out emergency manual grease filling on each lubricating point; when the grease amount in the grease cylinder is insufficient, the grease cylinder is quickly supplemented with grease by an electric or pneumatic grease supplementing pump through the quick grease supplementing joint.

The automatic lubricating device provided by the invention can keep working synchronization with a hydraulic tool; when the hydraulic tool works (oil pressure is supplied), the automatic lubricating device can continuously and uniformly deliver lubricating grease to each lubricating part; when the hydraulic tool stops working (no oil pressure is supplied), the grease supply is stopped.

The scheme provided by the invention can completely replace manual lubricating grease filling, does not need to be stopped for filling, saves labor and improves the production efficiency; meanwhile, the automatic lubricating device can continuously and uniformly supply lubricating grease, and the condition of insufficient lubrication or excessive lubrication is avoided, so that the service life of the hydraulic tool is prolonged, the production cost is reduced, and the pollution to the environment due to excessive filling is prevented.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

The invention will be further explained with reference to the drawings, in which:

FIG. 1 is a partial perspective view of an automatic lubrication device according to the present invention;

FIG. 2 is a perspective view of an automatic lubrication apparatus of the present invention;

FIG. 3 is a schematic diagram of the stepper drive motor and the pump core of the present invention;

FIG. 4 is a schematic view of a grease cartridge according to the present invention;

FIG. 5 is a sectional view of a grease cartridge according to the present invention;

FIG. 6 is a sectional view showing the internal structure of the pump cartridge according to the present invention;

FIG. 7 is a schematic view of the camshaft assembly configuration of the present invention;

FIG. 8 is a schematic view of the step motor according to the present invention;

FIG. 9 is a sectional view showing the internal structure of the step motor according to the present invention;

FIG. 10 is a cross-sectional view of the grease cartridge of the present invention mounted on the valve body;

FIG. 11 is a schematic diagram of the operation of the stepper drive motor of the present invention;

FIG. 12 is a schematic diagram I of a process of manually feeding grease to the grease cartridge according to the present invention;

FIG. 13 is a schematic diagram of a process of manually filling grease into the grease cartridge according to the present invention.

In the figure: 1. a grease cartridge; 101. a handle; 102. a nut cover is arranged; 103. an acrylic outer tube; 104. a housing; 105. an acrylic inner tube; 106. an inner piston assembly; 107. a lower nut cover; 108. a one-way sealing pin; 109. a liposuction joint; 110. a one-way stud; 111. a stud return spring; 112. a seal pin return spring; 113. an outer piston assembly; 114. an outer piston compression spring; 115. an upper end cover; 116. a grease storage chamber; 2. a valve body; 201. a pump core liposuction channel; 3. a pump core; 301. a pump core body; 302. a one-way valve; 303. a grease pumping plunger; 304. a first return spring; 305. a spacer; 4. a pressure relief valve; 5. a step drive motor; 501. a motor valve body; 502. a first control plunger; 503. a cap; 504. a second return spring; 505. a spring post; 506. a limiting cap; 507. a drive plunger; 508. a supporting seat; 509. a column; 510. a convex column; 511. a second control plunger; 6. a camshaft assembly; 601. a first one-way bearing; 602. a cam outer sleeve; 603. a drive ring; 604. a deep groove ball bearing; 605. a camshaft; 606. a second one-way bearing; 7. a hydraulic oil filter; 8. adjusting a valve; 9. a manual grease supplementing joint; 10. a quick grease filling joint; A. a grease discharging port; B. a fat suction port.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

As shown in fig. 1 to 13, the present invention provides an automatic lubrication device, which can be driven by hydraulic oil and can be directly or nearby mounted on a tool using hydraulic pressure as a power source, such as a hydraulic breaking hammer, a hydraulic grab, etc., to realize automatic lubrication of a movable part; specifically, the automatic lubricating device comprises a lubricating grease cylinder 1, a valve body 2, a pump core 3, a driving part and a camshaft assembly 6; the lubricating grease cylinder 1 is detachably arranged on the valve body 2 in the vertical direction and is hermetically communicated with a grease suction port B of the pump core 3, a pump core grease suction channel 201 is arranged in the valve body 2, and the grease suction port B of the pump core 3 is communicated with a grease suction joint 109 at the bottom of the lubricating grease cylinder 1 through the pump core grease suction channel 201; specifically, the lubricating grease cylinder 1 can realize the repeated filling of lubricating grease, and can observe the amount of the lubricating grease in the cylinder in real time, so that the lubricating grease can be supplemented in time when the amount of the lubricating grease is insufficient; the pump core 3 is arranged in the valve body 2 and pumps the lubricating grease to the lubricating grease outlet a of the valve body 2 through the lubricating grease conveying channel in the valve body 2; the camshaft assembly 6 is rotatably arranged in the valve body 2 and is used for driving the pump core 3 to pump lubricating grease to the lubricating grease outlet a of the valve body 2; the driving part is arranged on the valve body 2 and is in transmission connection with the camshaft assembly 6; the driving component is used for driving the camshaft assembly 6 to rotate in a one-way reciprocating mode, so that the pump core 3 is driven to pump grease; according to the scheme provided by the invention, hydraulic oil serving as a power source is firstly divided before flowing into a hydraulic tool, wherein one path of the hydraulic oil is filtered by a hydraulic oil filter 7 at a valve body hydraulic oil inlet b of an automatic lubricating device and then flows into a driving part through a flow passage in a valve body 2, the driving part drives a camshaft assembly 6 to rotate in a single direction under the action of hydraulic pressure, the surface of an eccentric wheel on the camshaft assembly 6 pushes a plunger in a pump core 3 to reciprocate, and lubricating grease is sucked from a lubricating grease cylinder 1 and pushed to a lubricating grease outlet of the automatic lubricating device by virtue of the reciprocating motion of the plunger in the pump core 3, and finally the lubricating grease can be conveyed to one or more parts needing lubricating through an external pipeline; the hydraulic oil flowing out of the driving part is discharged from a valve body hydraulic oil outlet c on the automatic lubricating device through a flow passage in the valve body 2; specifically, an adjusting valve 8 is arranged in front of a valve body hydraulic oil outlet c, the flow of hydraulic oil can be adjusted through the adjusting valve 8, and the adjustment of the lubricating grease discharge capacity of the automatic lubricating device is indirectly realized; the automatic lubricating device provided by the invention can keep working synchronization with the hydraulic tool, replaces manual filling, overcomes various defects caused by adopting a manual filling method, prolongs the service life of the hydraulic tool, improves the production efficiency and reduces the production cost; the automatic lubricating device can continuously and uniformly feed the grease to each lubricating part when the hydraulic tool works (when oil pressure is supplied), and stops feeding the grease when the hydraulic tool stops working (when oil pressure is not supplied).

Preferably, in combination with the above solution, as shown in fig. 1 to 13, the driving means is a step driving motor 5; the valve body 2 is also provided with a valve body hydraulic oil inlet b and a valve body hydraulic oil outlet c; the valve body hydraulic oil inlet b is communicated with a motor hydraulic oil inlet I of the stepping drive motor 5 through a hydraulic oil flow passage in the valve body 2; the valve body hydraulic oil outlet c is communicated with the motor hydraulic oil outlet O of the stepping drive motor 5 through a hydraulic oil flow passage in the valve body 2, so that hydraulic oil enters the stepping drive motor 5 through the valve body hydraulic oil inlet b and drives the plunger to reciprocate; the stepping drive motor 5 drives an internal plunger through hydraulic oil, and drives the camshaft assembly 6 to rotate in a unidirectional reciprocating mode through the plunger.

Preferably, in combination with the above, as shown in fig. 1 to 13, the stepping drive motor 5 includes a motor valve body 501, a first control plunger 502, a second control plunger 511, and a drive plunger 507; a support base 508 extends from the bottom of the motor valve body 501, a spring upright post 505 is arranged on the support base 508 along the horizontal direction, and a second return spring 504 is sleeved on the spring upright post 505; the driving plunger 507 is movably arranged in a first cavity of the motor valve body 501, extends outwards and is arranged opposite to the second return spring 504, and the extending end of the driving plunger 507 is radially positioned through a limiting cap 506; further, the drive plunger 507 is in line with the second return spring 504; the second control plunger 511 is movably arranged in a second cavity of the motor valve body 501, and two sides of the second control plunger are radially positioned through a cap 503; the first control plunger 502 is movably arranged in a third cavity of the motor valve body 501, and two sides of the first control plunger are radially positioned through a column cap; the top of the motor valve body 501 is provided with a convex column 510 for positioning the motor valve body 501; the first cavity and the second cavity are conducted when the driving plunger 507 moves from one end to the other end, the second cavity and the third cavity are conducted when the second control plunger 511 moves from one end to the other end, and the third cavity and the motor hydraulic oil outlet O are conducted when the first control plunger 502 moves from one end to the other end; the driving plunger 507, the second control plunger 511 and the first control plunger 502 are sequentially driven by hydraulic oil to move, so that the camshaft assembly 6 is driven to rotate in a unidirectional reciprocating manner.

Preferably, in combination with the above solutions, as shown in fig. 1 to 13, the hydraulic oil flowing to the stepping drive motor 5 through the internal flow passage of the valve body 2 flows into the stepping drive motor 5 through the motor hydraulic oil inlet I on the motor valve body 501, and the first plunger 502, the second control plunger 511 and the drive plunger 507 are controlled to move left and right in a progressive manner from bottom to top in sequence through the specific oil passage design inside the stepping drive motor 5; specifically, the operations are performed in the order shown in (1) to (6) in fig. 11:

(1) the initial positions of the first control plunger 502, the second control plunger 511 and the driving plunger 507 are all positioned at the leftmost end, hydraulic oil firstly enters the left cavity of the driving plunger 507 and pushes the driving plunger to move to the rightmost end, the head of the driving plunger 507 extends out, and the hydraulic oil in the right cavity of the driving plunger 507 is discharged from the hydraulic oil outlet c of the valve body through the internal flow passage of the valve body 2;

(2) when the driving plunger 507 moves to the rightmost end, a flow channel entering the cavity on the left side of the second plunger 511 is opened, the second plunger 511 is pushed to the rightmost end, and hydraulic oil in the cavity on the right side of the second plunger 511 is discharged from a valve body hydraulic oil outlet c through the flow channel inside the valve body 2;

(3) after the driving plunger 507 and the second plunger 511 all move to the rightmost end, a flow channel entering the cavity on the left side of the first plunger 502 is opened, the first plunger 502 is pushed to the rightmost end, and hydraulic oil in the cavity on the right side of the first plunger 502 is discharged from a valve body hydraulic oil outlet c through the flow channel inside the valve body 2;

(4) when the driving plunger 507, the second plunger 511 and the first plunger 502 all move to the rightmost end from top to bottom in sequence, a flow channel entering the cavity on the right side of the driving plunger 507 is opened, the driving plunger 507 is pushed to the leftmost end, the head of the driving plunger 507 retracts, and hydraulic oil in the cavity on the left side of the driving plunger 507 is discharged from a valve body hydraulic oil outlet c through a flow channel in the valve body 2;

(5) after the driving plunger 507 moves to the leftmost end, a flow channel entering the cavity on the right side of the second plunger 511 is opened, the second plunger 511 is pushed to the leftmost end, and hydraulic oil in the cavity on the left side of the second plunger 511 is discharged from a valve body hydraulic oil outlet c through the flow channel inside the valve body 2;

(6) after the driving plunger 507 and the second plunger 511 all move to the leftmost end, the flow channel entering the cavity on the right side of the first plunger 502 is opened, the first plunger 502 is pushed to the leftmost end, the hydraulic oil in the cavity on the left side of the first plunger 502 is discharged from the valve body hydraulic oil outlet c through the flow channel inside the valve body 2, and thus a working cycle is completed.

Specifically, with the continuous inflow of hydraulic oil from the motor hydraulic oil inlet I on the motor valve body 501, under the control of the first plunger 502 and the second plunger 511, the circulating motion is performed in the order shown in (1) to (6) in fig. 11, so as to realize the extending and retracting circulating reciprocating motion of the driving plunger 507, and under the combined action of the second return spring 504 and the second one-way bearing 606 in the driving ring 603, the one-way rotation of the camshaft assembly 6 is realized; further, the post 509 and the spring post 505 may function to define the left and right extreme positions of the drive ring 603 within the camshaft assembly 6; the hydraulic oil which finishes the work flows out from a motor hydraulic oil outlet O on the motor valve body 501, enters an oil return flow channel inside the valve body 2, and is finally discharged from a valve body hydraulic oil outlet c on the automatic lubricating device, namely as shown in fig. 1 and fig. 2; an adjusting valve 8 is arranged in front of a valve body hydraulic oil outlet c, the flow of hydraulic oil can be adjusted through the adjusting valve 8, and the adjustment of the lubricating grease discharge capacity of the automatic lubricating device is indirectly realized.

Preferably, in combination with the above solution, as shown in fig. 1 to 13, the camshaft assembly 6 includes a first one-way bearing 601, a cam housing 602, a driving ring 603, a deep groove ball bearing 604, a camshaft 605, and a second one-way bearing 606; the first one-way bearing 601 is sleeved at the upper end of the camshaft 605, and the deep groove ball bearing 604 is sleeved at the lower end of the camshaft 605; the camshaft 605 is rotatably arranged in the valve body 2 around the first one-way bearing 601 and the deep groove ball bearing 604 in the vertical direction; a straight handle is arranged on the driving ring 603, the driving ring 603 is sleeved on the camshaft 605 through a second one-way bearing 606, and the straight handle is arranged between the driving plunger 507 and the second return spring 504, so that the design is realized, the camshaft 605 is pushed to rotate in one way through the extension and retraction cyclic reciprocating motion of the driving plunger 507 under the combined action of the return spring 504 and the second one-way bearing 606 in the driving ring 603, and meanwhile, the first one-way bearing 601 can prevent the reverse rotation of the camshaft 605; the cam housing 602 is eccentrically sleeved on the camshaft 605 and is tightly connected with the camshaft 605; specifically, as shown in fig. 7, the arrow direction represents the unidirectional rotation direction of the camshaft assembly 6, and the exposed straight shank end of the drive ring 603 is interposed between the head of the drive plunger 507 in the stepping drive motor 5 and the second return spring 504; the reciprocating motion of the extending and retracting of the driving plunger 507 is cyclically carried out, and the cam shaft 605 is pushed to rotate in one direction under the combined action of the second return spring 504 and the second one-way bearing 606 in the driving ring 603, and meanwhile, the first one-way bearing 601 can prevent the reverse rotation of the cam shaft 605. Under the continuous pushing of the driving plunger 507 and the combined action of the upper one-way bearing and the lower one-way bearing, the one-way continuous rotation of the cam outer sleeve 602 is finally realized, and the cam outer sleeve 602 is closely matched and connected with the cam shaft 605.

Preferably, in combination with the above solution, as shown in fig. 3, it is a schematic diagram of the linkage among the pump core 3, the camshaft assembly 6, and the stepping drive motor 5; with the unidirectional continuous rotation of the camshaft assembly 6, the cam outer sleeve 602 continuously presses the grease pumping plunger 303 in the pump core 3, and the grease pumping plunger 303 is made to reciprocate left and right under the combined action of the first return spring 304, so that grease pumping is realized.

Preferably, in combination with the above scheme, as shown in fig. 1 to 13, the pump core 3 includes a pump core body 301, a check valve 302, a grease pump plunger 303, a first return spring 304, and a spacer 305; the pump core body 301 is arranged in the valve body 2 along the horizontal direction, and a lubricating grease pump cavity is formed in the pump core body 301; the grease suction port B is arranged on the pump core body 301 and is communicated with the lubricating grease pump cavity; the pump core body 301 is also provided with a grease discharging port A which is communicated with the lubricating grease pump cavity; the grease discharging port A is communicated with a grease outlet a through a grease passage of the valve body 2; the one-way valve 302 is arranged in the lubricating grease pump cavity and is positioned at the grease discharging port A; the grease pumping plunger 303 is telescopically arranged in the grease pumping cavity and is positioned at one end of the grease sucking port B; one end of the pump grease plunger 303 extends out of the pump core body 301, and the spacer 305 is arranged at one end of the pump grease plunger 303 extending out of the pump core body 301; the first return spring 304 is sleeved at one end of the pump core body 301, and one end of the first return spring 304 abuts against the spacer 305, so that the pump grease plunger 303 is driven to return; specifically, the pump core body 301 is provided with a grease suction port B and a grease discharge port A; when the grease pumping plunger 303 moves towards the right side, vacuum is formed in a sealed space formed by the grease cylinder 1, the valve body 2, the pump core body 301, the one-way valve 302 and the grease pumping plunger 303, so that grease in the grease cylinder 1 is sucked into the pump core 3 from a grease suction port; when the grease pumping plunger 303 moves to the left, the sucked grease is squeezed, when the grease pressure is greater than the spring force inside the check valve 302, the check valve is opened, the pressurized grease enters the grease conveying channel designed in the valve body 2 through the grease discharge port a on the pump core body 301, and finally is conveyed to each lubricating point through a grease outlet (as shown in fig. 1) and an external pipeline on the automatic lubricating device.

Preferably, in combination with the above solution, as shown in fig. 1 to 13, a hydraulic oil filter 7 is disposed on the valve body 2 at the valve body hydraulic oil inlet b; a regulating valve 8 is arranged on the valve body 2 before the hydraulic oil outlet c of the valve body; specifically, a regulating valve 8 is installed in front of a valve body hydraulic oil outlet c, the flow of hydraulic oil can be regulated through the regulating valve 8, and the regulation of the lubricating grease discharge capacity of the automatic lubricating device is indirectly realized.

Preferably, in combination with the above solution, as shown in fig. 1 to 13, the grease cartridge 1 includes a housing 104, an inner piston assembly 106, a one-way sealing pin 108, a grease suction joint 109, a one-way plug 110, an outer piston assembly 113, and an outer piston compression spring 114; specifically, a grease storage chamber 116 is provided in the housing 104; the inside of the grease storage cavity 116 is provided with an acrylic inner tube 105 along the vertical direction, and the inner piston assembly 106 is telescopically arranged in the acrylic inner tube 105 along the vertical direction; the grease suction connector 109 is arranged at the bottom of the shell 104, the one-way bolt 110 is arranged in the grease suction connector 109 along the vertical direction, one end of the one-way bolt 110 abuts against the through cavity of the lower end cover at the bottom of the shell 104 through the bolt return spring 111, and the through cavity of the lower end cover can be opened or closed and is used for communicating the grease suction connector 109 and the acrylic inner tube 105; the one-way sealing pin 108 is arranged on a grease supplementing channel in the lower end cover through a sealing pin return spring 112 and can open or close the grease supplementing channel, and the grease supplementing channel is used for communicating the lubricating grease storage cavity 116 with the acrylic inner tube 105; the outer piston assembly 113 is slidably disposed in the grease reservoir chamber 116 in a vertical direction; the outer piston compression spring 114 is disposed in the grease reservoir 116 in a vertical direction, and a bottom end of the outer piston compression spring 114 abuts on the outer piston assembly 113.

Preferably, with the above solution, as shown in fig. 1 to 13, after the grease cartridge 1 is mounted on the valve body 2, the one-way sealing pin 108 and the one-way plug 110 are pushed open by the valve body 2 (as shown in fig. 10), the grease in the grease cartridge 1 is pressed into the pump core grease suction passage in the valve body 2 under the action of the outer piston compression spring 114, and then the grease suction and pressure pumping are realized by the left and right reciprocating motion of the grease plunger 303 in the pump core 3; the position of the piston assembly 113 inside and outside the cylinder can be observed in real time through the transparent acrylic outer tube 103, so that the grease can be supplemented in time when the grease amount is insufficient, and when the grease amount in the grease cylinder 1 is found to be insufficient, an electric or pneumatic grease supplementing pump can be butted on the quick grease supplementing joint 10 under the condition that the grease cylinder 1 is not detached, the quick reverse grease supplementing is carried out on the grease cylinder 1, and meanwhile, the grease cylinder 1 can be detached for manual grease supplementing; specifically, after the lubricating grease cartridge 1 is removed, the one-way sealing pin 108 and the one-way bolt 110 are reset and closed under the action of the respective reset springs, as shown in fig. 4 and 5; manual grease supply to the grease cartridge 1 is performed in the following sequence as shown in fig. 12 (a) to fig. 13 (b):

(a) firstly, the grease suction joint 109 is required to extend below the oil surface of grease, then the handle 101 is screwed down from the threaded connecting hole in the upper end cover 115, and the inner piston assembly 106 is moved upwards and forms vacuum by pulling the handle 101 upwards; at this time, the one-way stud 110 will overcome the resistance of the stud return spring 111 and be sucked up, and the grease will be sucked into the acrylic inner tube 105;

(b) then the inner piston assembly 106 is pressed downwards through the handle 101, at the moment, the one-way bolt 110 is closed, the handle 101 is continuously pressed downwards, the pressure of the lubricating grease in the acrylic inner tube 105 is increased, the one-way sealing pin 108 is opened finally by overcoming the resistance of the sealing pin return spring 112, the lubricating grease is extruded into the cavity between the acrylic outer tube 103 and the acrylic inner tube 105, the outer piston assembly 113 is jacked up by overcoming the resistance of the outer piston compression spring 114, after the handle 101 is stopped being pressed downwards, the outer piston assembly 113 extrudes the lubricating grease downwards under the action of the spring force, the one-way sealing pin 108 is closed, and the lubricating grease which is refilled is finally stored in the cavity between the acrylic outer tube 103 and the acrylic inner tube 105; and (c) repeating the push-pull handle 101 according to the steps (a) to (b) until the position of the piston assembly 113 inside and outside the cylinder reaches the maximum grease quantity mark position is observed through the transparent acrylic outer tube 103.

Preferably, in combination with the above scheme, as shown in fig. 1 to 13, the grease cartridge 1 further includes a handle 101 and an acrylic outer tube 103, the acrylic outer tube 103 is disposed in the housing 104, a grease storage cavity 116 is formed in the acrylic outer tube 103, and a plurality of windows are disposed on the housing 104 in a vertical direction; the top of the shell 104 is provided with an upper end cover 115, and the upper end cover 115 is sleeved with the upper nut cover 102; a lower nut cover 107 is sleeved on the lower end cover; the handle 1 is fixedly disposed on top of the inner piston assembly 106.

Preferably, with reference to the above solutions, as shown in fig. 1 to 13, a pressure relief valve 4 is disposed below the grease outlet a on the valve body 2, a mounting port of the pressure relief valve 4 is communicated with the grease outlet a, and the pressure relief valve 4 protects the automatic lubricating device and the rear end lubrication line to prevent the grease pressure from being too high due to the blockage of the rear end lubrication line; specifically, the mounting port of the pressure release valve 4 is communicated with the grease outlet a, and if grease is discharged from the pressure release valve 4, the grease is indicated to be blocked in the rear-end lubrication pipeline and needs to be maintained in time; the hydraulic oil flowing out of the stepping drive motor 5 is discharged from a valve body hydraulic oil outlet c on the automatic lubricating device through a flow passage inside the valve body 2.

Preferably, in combination with the above solution, as shown in fig. 1 to 13, the valve body 2 is further provided with a manual grease filling joint 9 and a quick grease filling joint 10; when the automatic lubricating device breaks down, the manual grease supplementing joint 9 can be used for performing emergency manual grease supplementing on each lubricating point; when the grease amount in the grease cylinder 1 is insufficient, the grease cylinder 1 is quickly replenished with grease by an electric or pneumatic grease replenishing pump through the quick grease replenishing joint 10.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Those skilled in the art can make numerous possible variations and modifications to the described embodiments, or modify equivalent embodiments, without departing from the scope of the invention. Therefore, any modification, equivalent change and modification made to the above embodiments according to the technology of the present invention are within the protection scope of the present invention, unless the content of the technical solution of the present invention is departed from.

Claims

1. An automatic lubricating device is characterized by comprising a lubricating grease cylinder (1), a valve body (2), a pump core (3), a driving part and a camshaft assembly (6); the lubricating grease cylinder (1) is detachably arranged on the valve body (2) along the vertical direction and is communicated with a grease suction port (B) of the pump core (3); the pump core (3) is arranged in the valve body (2) and pumps lubricating grease to a lubricating grease outlet (a) of the valve body (2) through a lubricating grease conveying channel in the valve body (2); the camshaft assembly (6) is rotatably arranged in the valve body (2) and is used for driving the pump core (3) to pump lubricating grease to the lubricating grease outlet (a) of the valve body (2); the driving part is arranged on the valve body (2) and is in transmission connection with the camshaft assembly (6); the driving component is used for driving the camshaft assembly (6) to rotate in a one-way reciprocating mode, so that the pump core (3) is driven to pump grease; the lubricating grease cylinder (1) comprises a shell (104), an inner piston assembly (106), a one-way sealing pin (108), a grease suction joint (109), a one-way bolt (110), an outer piston assembly (113) and an outer piston compression spring (114); a lubricating grease storage cavity (116) is arranged in the shell (104); an acrylic inner tube (105) is arranged in the lubricating grease storage cavity (116) along the vertical direction, and the inner piston assembly (106) is arranged in the acrylic inner tube (105) in a telescopic mode along the vertical direction; the grease suction joint (109) is arranged at the bottom of the shell (104), the one-way bolt (110) is arranged in the grease suction joint (109) along the vertical direction, one end of the one-way bolt (110) abuts against the through cavity of the lower end cover at the bottom of the shell (104) through a bolt return spring (111), and the through cavity of the lower end cover can be opened or closed and is used for communicating the grease suction joint (109) with the acrylic inner tube (105); the one-way sealing pin column (108) is arranged on a grease supplementing channel in the lower end cover through a sealing pin column return spring (112) and can be opened or closed, and the grease supplementing channel is used for communicating the lubricating grease storage cavity (116) with the acrylic inner tube (105); the outer piston assembly (113) is slidably disposed in the grease reservoir chamber (116) in a vertical direction; the outer piston compression spring (114) is arranged in the grease storage cavity (116) along the vertical direction, and the bottom end of the outer piston compression spring (114) abuts against the outer piston assembly (113).

2. Automatic lubrication device according to claim 1, characterised in that said drive means are a stepper drive motor (5); the valve body (2) is also provided with a valve body hydraulic oil inlet (b) and a valve body hydraulic oil outlet (c); the valve body hydraulic oil inlet (b) is communicated with a motor hydraulic oil inlet (I) of the stepping drive motor (5) through a hydraulic oil flow passage in the valve body (2); the valve body hydraulic oil outlet (c) is communicated with a motor hydraulic oil outlet (O) of the stepping drive motor (5) through a hydraulic oil flow passage in the valve body (2); the stepping drive motor (5) drives an internal plunger through hydraulic oil, and drives the camshaft assembly (6) to rotate in a unidirectional reciprocating manner through the plunger.

3. Automatic lubrication device according to claim 2, characterised in that said stepper drive motor (5) comprises a motor valve body (501), a first control plunger (502), a second control plunger (511) and a drive plunger (507); a support seat (508) is arranged at the bottom of the motor valve body (501) in an extending mode, a spring upright post (505) is arranged on the support seat (508) in the horizontal direction, and a second return spring (504) is sleeved on the spring upright post (505); the driving plunger (507) is movably arranged in a first cavity of the motor valve body (501) and extends outwards to be opposite to the second return spring (504); the second control plunger (511) is movably arranged in a second cavity of the motor valve body (501); the first control plunger (502) is movably arranged in a third cavity of the motor valve body (501); the first cavity and the second cavity are communicated when the driving plunger (507) moves from one end to the other end, the second cavity and the third cavity are communicated when the second control plunger (511) moves from one end to the other end, and the third cavity and the motor hydraulic oil outlet (O) are communicated when the first control plunger (502) moves from one end to the other end; the driving plunger (507), the second control plunger (511) and the first control plunger (502) are driven by hydraulic oil to move, so that the camshaft assembly (6) is driven to rotate in a one-way reciprocating mode.

4. Automatic lubrication device according to claim 3, characterised in that said camshaft assembly (6) comprises a first one-way bearing (601), a cam housing (602), a driving ring (603), a deep groove ball bearing (604), a camshaft (605) and a second one-way bearing (606); the first one-way bearing (601) is sleeved at the upper end of the camshaft (605), and the deep groove ball bearing (604) is sleeved at the lower end of the camshaft (605); the camshaft (605) is rotatably arranged in the valve body (2) along the vertical direction around the first one-way bearing (601) and the deep groove ball bearing (604); a straight handle is arranged on the driving ring (603), the driving ring (603) is sleeved on the camshaft (605) through the second one-way bearing (606), and the straight handle is arranged between the driving plunger (507) and the second return spring (504); the cam outer sleeve (602) is eccentrically sleeved on the cam shaft (605) and is tightly connected with the cam shaft (605).

5. The automatic lubrication device according to claim 4, wherein the pump cartridge (3) comprises a pump cartridge body (301), a check valve (302), a grease pump plunger (303), a first return spring (304), and a spacer (305); the pump core body (301) is arranged in the valve body (2) along the horizontal direction, and a lubricating grease pump cavity is formed in the pump core body (301); the grease suction port (B) is arranged on the pump core body (301) and is communicated with the lubricating grease pump cavity; the pump core body (301) is also provided with a grease discharging port (A), and the grease discharging port (A) is communicated with the lubricating grease pump cavity; the grease discharge port (A) is communicated with the grease outlet (a) through a grease passage of the valve body (2); the one-way valve (302) is arranged in the lubricating grease pump cavity and is positioned at the grease discharging port (A); the grease pumping plunger (303) is telescopically arranged in the grease pumping cavity and is positioned at one end of the grease suction port (B); one end of the grease pumping plunger (303) extends out of the pump core body (301), and the spacer (305) is arranged at one end of the grease pumping plunger (303) extending out of the pump core body (301); the first return spring (304) is sleeved at one end of the pump core body (301), and one end of the first return spring (304) abuts against the spacer (305), so that the pump grease plunger (303) is driven to return.

6. The automatic lubrication device according to claim 2, characterized in that a hydraulic oil filter (7) is arranged on the valve body (2) at the valve body hydraulic oil inlet (b); and an adjusting valve (8) is arranged on the valve body (2) and is positioned in front of the valve body hydraulic oil outlet (c).

7. The automatic lubricating device according to claim 1, wherein the lubricating grease cartridge (1) further comprises a handle (101) and an acrylic outer tube (103), the acrylic outer tube (103) is arranged in the housing (104), the lubricating grease storage cavity (116) is formed in the acrylic outer tube (103), and a plurality of windows are arranged on the housing (104) along a vertical direction; an upper end cover (115) is arranged at the top of the shell (104), and an upper nut cover (102) is sleeved on the upper end cover (115); a lower nut cover (107) is sleeved on the lower end cover; the handle (101) is fixedly arranged at the top of the inner piston assembly (106).

8. The automatic lubrication device according to claim 1, wherein a pressure relief valve (4) is provided below the grease outlet (a) on the valve body (2), and a mounting port of the pressure relief valve (4) communicates with the grease outlet (a).

9. The automatic lubricating device according to claim 1, characterized in that the valve body (2) is further provided with a manual grease supplementing joint (9) and a quick grease supplementing joint (10); when the automatic lubricating device has a fault, the manual grease supplementing joint (9) can be used for performing emergency manual grease supplementing on each lubricating point; when the amount of grease in the grease cylinder (1) is insufficient, the quick grease supplementing joint (10) is used for quickly supplementing grease to the grease cylinder (1) by adopting an electric or pneumatic grease supplementing pump.