Electric grease pump

Abstract

The utility model discloses an electric grease pump, and belongs to the field of lubricating devices. The device comprises an oil tank, an eccentric mechanism and a gear motor, an oil pressing disc is installed in an inner cavity of the oil tank and divides the inner cavity of the oil tank into an upper cavity body and a lower cavity body. A filter screen is mounted on the oil pressing disc, and the upper cavity is communicated with the lower cavity through the filter screen; the eccentric mechanism is mounted on a motor shaft of the speed reducing motor and is positioned in the lower cavity; and the eccentric mechanism is connected with the plunger assembly. The electric grease pump is clean in oil filling and filtering, reliable in pressure relief, wide in oil product application range and wide in working condition range.

Description

TECHNICAL FIELD

[0001] The utility model relates to lubricating device field, concretely relates to a kind of electric grease pump. BACKGROUND

[0002] Current market electric grease pump does not have pressure relief function, and there is no filter device on the pump, the scope of application is narrow, oil product cannot guarantee clean, it is easy to cause foreign matter jam between plunger rod and plunger sleeve or foreign matter at check valve to cause check valve failure not to discharge oil, cause equipment failure, shutdown after-sales maintenance. UTILITY MODEL CONTENTS

[0003] The utility model aims at providing a kind of efficient electric grease pump.

[0004] To solve the above technical problem, the utility model provides a kind of electric grease pump, including oil tank, eccentric mechanism and reduction motor;

[0005] The oil tank inner chamber is installed with oil pressing disc, and the oil pressing disc divides the oil tank inner chamber into upper cavity and lower cavity;

[0006] Filter screen is installed on the oil pressing disc, and the upper cavity and lower cavity are communicated by filter screen;

[0007] The eccentric mechanism is installed on the motor shaft of reduction motor, and is located in lower cavity;

[0008] The eccentric mechanism is connected with plunger assembly.

[0009] Preferably, the plunger assembly includes plunger rod and plunger sleeve;

[0010] The plunger sleeve is sleeved on the plunger rod;

[0011] The eccentric mechanism is in abutment with plunger rod;

[0012] The plunger sleeve is connected with oil outlet.

[0013] Preferably, the plunger assembly further includes spring;

[0014] Plunger sleeve base is arranged on the outer side of plunger sleeve, and plunger rod base is installed on the plunger rod;

[0015] The spring is sleeved on the plunger sleeve, one end of spring is connected with plunger sleeve base of plunger sleeve, and the other end is in abutment with plunger rod base of plunger rod.

[0016] Preferably, one-way valve is installed in the plunger sleeve.

[0017] Preferably, oil filler nozzle is arranged on the side wall of oil tank;

[0018] The oil pressing disc is provided with a flow channel opening, and a sealing ring is installed on the flow channel opening.

[0019] The oil filling nozzle is communicated with the upper cavity through a filter and a flow channel opening.

[0020] Preferably, a pressure gauge is installed on the oil outlet.

[0021] Preferably, the motor shaft of the speed reducer motor is connected with the eccentric mechanism through a semicircular key and a stop screw.

[0022] Preferably, the oil pressing blade is further included.

[0023] The motor shaft of the speed reducer motor penetrates the oil pressing disc.

[0024] The oil pressing blade is installed on the motor shaft of the speed reducer motor and located in the upper cavity.

[0025] A baffle is installed at the bottom of the oil pressing blade.

[0026] Preferably, an oil tank top cover is installed on the top of the oil tank.

[0027] An oil filling opening is formed on the oil tank top cover, and a top cover is installed on the oil filling opening.

[0028] Preferably, the bottom of the top cover is connected with the bottom of the oil tank top cover through a connecting chain.

[0029] Compared with the prior art, the electric grease pump has the following beneficial effects:

[0030] The electric grease pump has the advantages of reliable oil filling filtering and cleaning, reliable pressure relief, wide oil product range and wide working condition range. BRIEF DESCRIPTION OF DRAWINGS

[0031] The specific embodiments of the electric grease pump will be further described in detail below with reference to the drawings.

[0032] Figure 1 It is a structural schematic diagram of an electric grease pump.

[0033] Figure 2 It is a structural schematic diagram of an oil filling nozzle.

[0034] Figure 3 It is a structural schematic diagram of a pressure gauge and an electromagnetic pressure relief valve.

[0035] Figure 4 It is a structural schematic diagram of an oil pressing disc.

[0036] In the drawings:

[0037] 1 - top cover; 2 - oil tank top cover; 3 - oil tank; 31 - upper cavity; 32 - lower cavity; 4 - oil pressing blade; 41 - baffle; 5 - oil pressing disc; 51 - filter screen; 52 - flow channel opening; 6 - eccentric mechanism; 7 - speed reducer motor; 71 - motor shaft; 72 - semicircular key; 73 - end screw; 8 - power supply box; 9 - pressure regulating valve; 10 - plunger rod; 101 - plunger rod base; 11 - plunger sleeve; 111 - plunger sleeve base; 12 - check valve; 13 - oil outlet; 14 - oil filling nozzle; 16 - sealing ring; 17 - electromagnetic pressure relief valve; 18 - pressure gauge; 19 - connecting chain; 20 - spring. DETAILED DESCRIPTION

[0038] 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 have not been described in detail in order to avoid obscuring the present application. Therefore, the present application is not intended to be limited by the specific implementations disclosed.

[0039] The terminology used in this description of one or more embodiments should not be interpreted as limiting the scope of the one or more embodiments. The description is presented solely for the purpose of describing the one or more embodiments. It should be further understood that the use of "a", "an" and "the" in this description of one or more embodiments are not construed to mean "only one" unless specifically stated otherwise. Also, it should be understood that the use of "and / or" in this description of one or more embodiments means "and / or" unless specifically stated otherwise.

[0040] It should be understood that although the terms first, second, etc. can be used herein to describe various information, these terms are not intended to denote a particular order or hierarchy among the information. These terms are used only to distinguish one from another. For example, a first item can be termed a second item, and, similarly, a second item can be termed a first item without departing from the scope of the one or more embodiments. As used herein, the term "if' can be construed to mean "when" or "upon" or "in response to determining" terms denoting the occurrence of stated events or actions, depending on the context.

[0041] The present application will be further described by the following detailed description made in connection with the drawings wherein:

[0042] The present application provides an electric grease pump, comprising an oil tank 3, an eccentric mechanism 6 and a speed reducer motor 7;

[0043] An oil pressing disc 5 is installed in the inner cavity of the oil tank 3, and the oil pressing disc 5 separates the inner cavity of the oil tank 3 into an upper cavity 31 and a lower cavity 32;

[0044] The filter screen 51 is installed on the pressing oil disc 5, and the upper cavity 31 and the lower cavity 32 are communicated through the filter screen 51.

[0045] The eccentric mechanism 6 is installed on the motor shaft 71 of the speed reduction motor 7 and located in the lower cavity 32.

[0046] The eccentric mechanism 6 is connected with the plunger assembly.

[0047] Preferably, the plunger assembly comprises a plunger rod 10 and a plunger sleeve 11.

[0048] The plunger sleeve 11 is sleeved on the plunger rod 10.

[0049] The eccentric mechanism 6 abuts against the plunger rod 10.

[0050] The plunger sleeve 11 is connected with the oil outlet 13.

[0051] Preferably, the plunger assembly further comprises a spring 20.

[0052] The plunger sleeve 11 is provided with a plunger sleeve base 111 on the outside, and the plunger rod 10 is provided with a plunger rod base 101.

[0053] The spring 20 is sleeved on the plunger sleeve 11, one end of the spring 20 is connected with the plunger sleeve base 111 of the plunger sleeve 11, and the other end abuts against the plunger rod base 101 of the plunger rod 10.

[0054] Preferably, the plunger sleeve 11 is provided with a one-way valve 12.

[0055] Preferably, the oil tank 3 is provided with a refueling nozzle 14 on the side wall.

[0056] The pressing oil disc 5 is provided with a flow channel opening 52, and the flow channel opening 52 is provided with a sealing ring 16.

[0057] The refueling nozzle 14 is communicated with the upper cavity 31 through the filter 15 and the flow channel opening 52.

[0058] Preferably, the oil outlet 13 is provided with a pressure gauge 18.

[0059] Preferably, the motor shaft 71 of the speed reduction motor 7 is connected with the eccentric mechanism 6 through the semicircular key 72 and the stop screw 73.

[0060] Preferably, the pressing oil disc 5 further comprises a pressing oil vane 4.

[0061] The motor shaft 71 of the speed reduction motor 7 penetrates through the pressing oil disc 5.

[0062] The pressing oil vane 4 is installed on the motor shaft 71 of the speed reduction motor 7 and located in the upper cavity 31.

[0063] The bottom of the oil pressing blade 4 is provided with a baffle 41.

[0064] Preferably, the top of the oil tank 3 is provided with an oil tank top cover 2.

[0065] The oil tank top cover 2 is provided with a filling port 13, and the filling port 13 is provided with a top cover 1.

[0066] Preferably, the bottom of the top cover 1 is connected with the bottom of the oil tank top cover 2 through a connecting chain 19.

[0067] In order to better illustrate the technical effect of the utility model, the following specific embodiment is provided to illustrate the above technical process.

[0068] Embodiment 1, an electric grease pump, the pump comprises a top cover 1, an oil tank top cover 2, an oil tank 3, an oil pressing blade 4, an oil pressing disc 5, an eccentric mechanism 6, a speed reducer motor 7, a power supply box 8, a pressure regulating valve 9, a plunger rod 10, a plunger sleeve 11, a one-way valve 12, an oil outlet 13; the pump is provided with a filling nozzle 14, and oil enters a filter 15, is filtered, and then flows to an upper cavity 31 above the oil pressing disc 5, enters a lower cavity 32 after passing through a filter screen 51 of the oil pressing disc 5, and the cleanliness of the oil is ensured; when the speed reducer motor 7 is started to operate, the eccentric mechanism 6 is rotated, the plunger rod 10 is driven to reciprocate in the plunger sleeve 11, the volume of the plunger sleeve 11 changes, the oil is sucked, then the one-way valve 12 is opened, and the oil is discharged; the pump is provided with an electromagnetic pressure relief valve 17, the speed reducer motor 7 is powered at the same time, is mainly used for a quantitative lubricating system, and ensures that a distributor can work normally; when the pump is powered off, the electromagnetic pressure relief valve 17 is also powered off, high-pressure oil in a system pipeline flows back to an oil cavity through the electromagnetic pressure relief valve 17, and thus the system completes a cycle of work. The oil is filtered and cleaned, the pressure relief is reliable, the range of applicable oil is wide, and the range of working conditions is wide.

[0069] The top cover 1 and the oil tank top cover 2 are connected through threads, the top cover 1 can be directly opened to add clean oil into the oil tank 3, the operation is convenient and simple, hydraulic pressure enters the cavity through the filter screen 51 of the oil pressing disc 5, the top cover 1 and the oil tank top cover 2 are connected through iron beads to prevent loss after being opened, and this is a filling mode of the pump.

[0070] The oil pressing blade 4 is arranged on the motor shaft 71 and is provided with a baffle 41, the oil pressing blade 4 is arranged obliquely upward, and the baffle 41 is vertically arranged at the bottom of the oil pressing blade 4; when the motor rotates, the oil gives a downward force when passing through the baffle 41, accelerates the oil to flow into the cavity through the filter screen 51, the oil pressing blade 4 can make the pump applicable to a wider medium, and also helps the bubbles in the oil to break and move upward, avoiding the bubbles from entering the cavity and being sucked into the plunger sleeve 11, so that the system does not work abnormally.

[0071] The eccentric mechanism 6 is provided with a half-circle key 72 structure matched with the motor shaft 71, and a stop screw 73 is designed to fix and prevent the eccentric mechanism 6 from shaking and generating noise when running under stress;

[0072] The plunger rod 10 and the plunger sleeve 11 are matched by precise machining to ensure that the plunger rod 10 and the plunger sleeve 11 will not leak and affect the discharge flow accuracy when running, the plunger rod 10 and the plunger sleeve 11 are connected by the spring 20 outside, and the plunger sleeve 11 can be provided with an oil inlet hole for oil flowing in on the side wall; when the eccentric mechanism 6 rotates to compress the spring 20, the oil stored in the plunger sleeve 11 is pushed out, and when the eccentric mechanism 6 rotates 180 degrees, the plunger rod 10 is ejected under the elastic force of the spring 20, the cavity in the plunger sleeve 11 becomes larger, and the oil is sucked in, so as to realize the reciprocating discharge of the oil.

[0073] The one-way valve 12 is provided, and the oil discharged by the plunger rod 10 opens the one-way valve 12, and when the plunger rod 10 is brought back by the eccentric mechanism 6, the plunger rod 10 is quickly closed under the elastic force of the spring 20 to avoid the discharged oil being sucked back;

[0074] The pressure regulating valve 9 is provided between the oil outlet 13 and the lower cavity 32 to protect the system safety, and when the system pressure exceeds the set pressure, the pressure regulating valve 9 is opened, and the excess oil is overflowed into the lower cavity 32;

[0075] The oil pressing disc 5 is provided with the filter screen 51 and the flow channel 52, and when the oil nozzle 14 is used to add oil into the pump, the lower part of the flow channel 52 is provided with the sealing ring 16 to prevent the oil from entering the cavity in advance, so that the oil enters the upper part of the oil pressing disc 5, passes through the filter screen 51 and then enters the cavity, and this design is the second oil adding mode of the pump;

[0076] The pressure gauge 18 is provided to detect the pressure condition of the system during running and to determine whether the pump pressure is normal after a fault occurs;

[0077] The electromagnetic pressure relief valve 17 is provided, and the valve is a two-position normally open type, which is installed between the inner cavity of the plunger sleeve 11 and the lower cavity 32, the flow channel is closed when powered on, and the oil can only run to the oil outlet 13, the flow channel is opened when powered off, and the high-pressure oil in the pipeline system flows back to the lower cavity 32 through the opened valve block to relieve pressure and prepare for the next system work.

[0078] The above is only a specific implementation manner of the utility model, but the protection scope of the utility model is not limited to this, any change or replacement within the technical scope disclosed by the utility model should be covered in the protection scope of the utility model. Therefore, the protection scope of the utility model should be subject to the protection scope of the claims.

Claims

1. An electrically powered grease pump characterized by: It comprises an oil tank (3), an eccentric mechanism (6) and a reduction motor (7); A pressing oil disc (5) is installed in the inner cavity of the oil tank (3), which separates the inner cavity of the oil tank (3) into an upper cavity (31) and a lower cavity (32); A filter screen (51) is installed on the pressing oil disc (5), and the upper cavity (31) and the lower cavity (32) are communicated through the filter screen (51); The eccentric mechanism (6) is installed on the motor shaft (71) of the reduction motor (7) and located in the lower cavity (32); The eccentric mechanism (6) is connected with a plunger assembly.

2. The electric grease pump according to claim 1, wherein: The plunger assembly comprises a plunger rod (10) and a plunger sleeve (11); The plunger sleeve (11) is sleeved on the plunger rod (10); The eccentric mechanism (6) abuts against the plunger rod (10); The plunger sleeve (11) is connected with the oil outlet (13).

3. The electric grease pump according to claim 2, wherein: The plunger assembly further comprises a spring (20); A plunger sleeve base (111) is arranged on the outer side of the plunger sleeve (11), and a plunger rod base (101) is installed on the plunger rod (10); The spring (20) is sleeved on the plunger sleeve (11), one end of the spring (20) is connected with the plunger sleeve base (111) of the plunger sleeve (11), and the other end abuts against the plunger rod base (101) of the plunger rod (10).

4. The electric grease pump according to claim 3, wherein: A one-way valve (12) is installed in the plunger sleeve (11).

5. The electric grease pump according to claim 4, wherein: An oil filling nozzle (14) is arranged on the side wall of the oil tank (3); A flow channel opening (52) is formed on the pressing oil disc (5), and a sealing ring (16) is installed on the flow channel opening (52); The oil filling nozzle (14) is communicated with the upper cavity (31) through the filter (15) and the flow channel opening (52).

6. The electric grease pump according to claim 5, wherein: A pressure gauge (18) is installed on the oil outlet (13).

7. The electric grease pump according to claim 6, wherein: The motor shaft (71) of the reduction motor (7) is connected with the eccentric mechanism (6) through a semicircular key (72) and a stop screw (73).

8. The electrically driven grease pump of claim 7, wherein, It further comprises a pressing oil vane (4); The motor shaft (71) of the reduction motor (7) penetrates through the pressing oil disc (5); The pressing oil vane (4) is installed on the motor shaft (71) of the reduction motor (7) and located in the upper cavity (31); A baffle (41) is installed at the bottom of the pressing oil vane (4).

9. The electric grease pump according to claim 8, wherein: An oil tank top cover (2) is installed on the top of the oil tank (3); An oil filling opening is formed on the oil tank top cover (2), and a top cover (1) is arranged on the oil filling opening.

10. The electric grease pump according to claim 9, wherein: An electromagnetic pressure relief valve (17) is installed between the inner cavity of the plunger sleeve (11) and the lower cavity (32).

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