Telescopic scraping grease filling device

Abstract

The utility model discloses a telescopic pressure-scraping grease replenishing device, including a motor and a hydraulic pump, and also including a frame, an oil pressure mechanism, a proximity switch, a telescopic sleeve, a telescopic mechanism, a telescopic transmission shaft and a telescopic oil outlet pipe. The frame includes a lifting frame, and the oil pressure mechanism is installed on the lifting frame, including an annular barrel cover and an annular pressure plate arranged up and down, the upper end of the telescopic sleeve is fixedly connected to the annular barrel cover, and the lower end is fixedly connected to the hydraulic pump; the motor is installed at the upper end of the telescopic sleeve, and the telescopic mechanism, the telescopic transmission shaft and the telescopic oil outlet pipe are all located inside the telescopic sleeve. The utility model applies pressure to the grease barrel through the oil pressure mechanism, and places the hydraulic pump at the bottom of the grease barrel, thereby reducing the oil suction resistance and improving the oil suction efficiency. At the same time, it can also avoid oil supply interruption and facilitate the operator to replace the grease barrel.

Description

Technical Field

[0001] The utility model relates to a device for conveying lubricating grease. Background Art

[0002] In the centralized lubrication system of dry oil grease, it is necessary to regularly add grease to the oil tank of the dry oil pump station. The grease replenishing device (such as the grease replenishing pump) has the advantages of convenient oil filling, long service life, time saving and reduced grease consumption, which effectively reduces the repair and maintenance costs of the equipment. It is particularly suitable for large-scale dry oil centralized lubrication systems as an oil supply device for centralized grease filling in the oil reservoirs of multiple lubrication pump stations.

[0003] The traditional grease replenishing device is installed on a special barrel cover, and the pump tube is inserted into the oil barrel to absorb the grease under the drive of the hydraulic pump. Due to the long pump tube and the high viscosity and poor fluidity of the grease in the oil barrel, it is difficult to absorb the oil, and sometimes there will be insufficient oil supply. On the other hand, when the grease in the oil storage barrel cannot meet the oil supply demand or the pump tube cannot reach the bottom of the oil barrel, it may cause the oil supply of the dry oil lubrication station to be interrupted, which will cause mechanical damage, and cause manpower waste and economic losses. In addition, the process of replacing the grease barrel is also quite laborious, and usually requires the cooperation of multiple people to complete. Utility Model Content

[0004] The utility model proposes a telescopic pressure scraping type grease replenishing device, the purpose of which is to solve the problems of difficult oil absorption, easy oil supply interruption and time-consuming and labor-intensive replacement of grease barrels in traditional grease replenishing devices.

[0005] The technical solution of this utility model is as follows:

[0006] A telescopic pressure-scraping grease replenishing device comprises a motor and a hydraulic pump, and also comprises a frame, an oil pressing mechanism, a proximity switch, a telescopic sleeve, a telescopic mechanism, a telescopic transmission shaft and a telescopic oil outlet pipe;

[0007] The frame includes a bottom plate for placing the grease barrel and a vertical frame connected to the bottom plate, and a lifting frame and a lifting cylinder for driving the lifting frame to move up and down are installed on the vertical frame;

[0008] The oil pressing mechanism comprises an annular barrel cover and an annular pressing plate arranged up and down, the annular barrel cover is used to be buckled on the grease barrel and connected to the lifting frame; the outer edge of the annular barrel cover is connected to the outer edge of the annular pressing plate through an outer elastic bellows, and the inner edge of the annular barrel cover is connected to the inner edge of the annular pressing plate through an inner elastic bellows, thereby forming an annular inflation cavity, and an inflation solenoid valve is installed on the annular barrel cover; the proximity switch is installed on the annular pressing plate;

[0009] The upper end of the telescopic sleeve is fixedly connected to the annular barrel cover, and the lower end is fixedly connected to the hydraulic pump; the motor is installed at the upper end of the telescopic sleeve, and the telescopic mechanism, telescopic transmission shaft and telescopic oil outlet pipe are all located inside the telescopic sleeve; the upper end of the telescopic mechanism is connected to the upper end of the telescopic sleeve, and the lower end is connected to the hydraulic pump, which is used to drive the hydraulic pump to move up and down; the output shaft of the motor is connected to the input end of the hydraulic pump through the telescopic transmission shaft, which is used to drive the hydraulic pump to absorb grease; the oil outlet joint at the upper end of the telescopic oil outlet pipe is installed on the annular barrel cover, and the lower end is connected to the oil outlet of the hydraulic pump; the oil inlet of the hydraulic pump is located on the outside of the telescopic sleeve.

[0010] As a further improvement of the telescopic pressure-scraping grease replenishing device: the telescopic mechanism is a telescopic cylinder.

[0011] As a further improvement of the telescopic pressure-scraping grease replenishing device: the telescopic transmission shaft is located in the telescopic cylinder.

[0012] As a further improvement of the telescopic pressure scraping type grease replenishing device: the telescopic cylinder includes a base located at the upper end, and also includes a plurality of cylinder pipe sections which are sealed and sleeved in sequence; adjacent cylinder pipe sections are sealed and sleeved to form an annular cavity through their respective pipe walls and annular baffles; vent holes are provided in the pipe walls of the other cylinder pipe sections except the lowest cylinder pipe section, and the ends of the vent holes are connected to the corresponding annular cavity;

[0013] The base is provided with a first air inlet and an exhaust port and a second air inlet and an exhaust port. The first air inlet and an exhaust port is communicated with the inner cavity of the telescopic cylinder, and the second air inlet and an exhaust port is communicated with the vent hole in the uppermost cylinder pipe section.

[0014] As a further improvement of the telescopic pressure-scraping grease replenishing device: the telescopic transmission shaft includes a plurality of transmission shaft segments which are sealed and sleeved in sequence, and adjacent transmission shaft segments are connected in a relatively slidable manner through a sliding groove and a sliding block.

[0015] As a further improvement of the telescopic pressure-scraping grease replenishing device: the telescopic oil outlet pipe also includes a plurality of oil outlet pipe sections which are sealed and sleeved in sequence.

[0016] As a further improvement of the telescopic scraping type grease replenishing device: a roller is installed on the lifting frame, and the roller cooperates with the guide groove on the vertical frame.

[0017] As a further improvement of the telescopic pressure-scraping grease replenishing device: walking wheels are also provided on the bottom plate.

[0018] Compared with the prior art, the utility model has the following positive effects:

[0019] 1. On the one hand, the device applies pressure to the grease barrel through the oil pressure mechanism, and on the other hand, the hydraulic pump is placed at the bottom of the grease barrel through the telescopic mechanism, and the oil is directly sucked from the bottom of the grease barrel, which reduces the oil suction resistance and improves the oil suction efficiency.

[0020] 2. The hydraulic pump is located at the bottom of the grease barrel and will not be interrupted until the grease is exhausted. At the same time, the remaining amount of grease can be judged in time with the help of the proximity switch. The two work together to effectively avoid oil supply interruption.

[0021] 3. The lifting frame can quickly remove the pressure mechanism, motor, hydraulic pump and other mechanisms from the grease barrel, making it convenient for the operator to replace the grease barrel. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the utility model;

[0023] Figure 2 for Figure 1 A partial enlarged view of part A;

[0024] Figure 3 for Figure 1 A partial enlarged view of part B;

[0025] Figure 4 The figure shows the side view of the rack.

[0026] Reference numerals:

[0027] 1. Stand, 2. Lifting frame, 3. Roller, 4. Lifting cylinder, 5. Travel wheel, 6. Two-position three-way solenoid valve, 7. Annular barrel cover, 8. Outer elastic bellows, 9. Inner elastic bellows, 10. Annular pressure plate, 11. Proximity switch, 12. Telescopic sleeve, 13. Telescopic cylinder, 14. Hydraulic pump, 15. Telescopic transmission shaft, 16. Telescopic oil outlet pipe, 17. Motor, 13-1. First air inlet and outlet, 13-2. Second air inlet and outlet, 13-3. First cylinder pipe section, 13-4. Second cylinder pipe section, 13-5. Third cylinder pipe section, 15-1. First transmission shaft section, 15-2. Second transmission shaft section, 15-3. Third transmission shaft section, 16-1. Oil outlet joint, 16-2. First oil outlet pipe section, 16-3. Second oil outlet pipe section, 16-4. Third oil outlet pipe section. DETAILED DESCRIPTION

[0028] The technical solution of the utility model is described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments.

[0029] like Figure 1A telescopic pressure-scraping grease replenishing device includes a motor 17 and a hydraulic pump 14, and also includes a frame, an oil pressure mechanism, a proximity switch 11, a telescopic sleeve 12, a telescopic mechanism, a telescopic transmission shaft 15 and a telescopic oil outlet pipe 16.

[0030] like Figure 1 and 4 The frame includes a bottom plate for placing a grease barrel and a stand 1 connected to the bottom plate. In this embodiment, the frame is movable, and a walking wheel 5 is provided on the bottom plate, and a handrail is provided on the stand 1. A lifting frame 2 and a lifting cylinder 4 for driving the lifting frame 2 to move up and down are installed on the stand 1. Rollers 3 are installed on the left and right sides of the lifting frame 2, and the rollers 3 cooperate with the guide grooves on the stand 1.

[0031] like Figures 1 to 3 The oil pressing mechanism includes an annular barrel cover 7 and an annular pressure plate 10 arranged up and down. The annular barrel cover 7 is used to be buckled on the grease barrel and connected to the lifting frame 2, and moves up and down with the lifting frame 2.

[0032] The outer edge of the annular barrel cover 7 is connected to the outer edge of the annular pressing plate 10 through the outer elastic bellows 8, and the inner edge of the annular barrel cover 7 is connected to the inner edge of the annular pressing plate 10 through the inner elastic bellows 9, thereby forming an annular inflation cavity. The bellows is preferably a rubber bellows. An inflation solenoid valve is installed on the annular barrel cover 7, and the inflation solenoid valve is a two-position three-way solenoid valve 6.

[0033] The proximity switch 11 is mounted on the annular pressure plate 10 , and a cable connected to the proximity switch 11 passes through the annular air-filled inner cavity and is led out from the annular barrel cover 7 .

[0034] The upper end of the telescopic sleeve 12 is fixedly connected to the annular barrel cover 7 by bolts, and the lower end is welded to the outer edge of the hydraulic pump 14.

[0035] The motor 17 is installed at the upper end of the telescopic sleeve 12 , and the telescopic mechanism, the telescopic transmission shaft 15 and the telescopic oil outlet pipe 16 are all located inside the telescopic sleeve 12 .

[0036] The upper end of the telescopic mechanism is connected to the upper end of the telescopic sleeve 12 , and the lower end is connected to the hydraulic pump 14 , so as to drive the hydraulic pump 14 to move up and down.

[0037] In this embodiment, the telescopic mechanism is a telescopic cylinder 13, which includes a base at the upper end, and also includes a first cylinder pipe section 13-3, a second cylinder pipe section 13-4 and a third cylinder pipe section 13-5 which are sealed and sleeved in sequence. Adjacent cylinder pipe sections are sealed and sleeved to form an annular cavity through their respective pipe walls and annular baffles. Ventilation holes are provided in the pipe walls of the other cylinder pipe sections except the lowest cylinder pipe section, and the ends of the vent holes are connected to the corresponding annular cavity.

[0038] The base is provided with a first air inlet and outlet 13-1 and a second air inlet and outlet 13-2. The first air inlet and outlet 13-1 is connected to the inner cavity of the telescopic cylinder 13, and the second air inlet and outlet 13-2 is connected to the vent hole in the uppermost cylinder pipe section. When the first air inlet and outlet 13-1 is ventilated, the entire telescopic cylinder 13 is extended and the hydraulic pump 14 is lowered; when the second air inlet and outlet 13-2 is ventilated, gas is filled into each annular cavity, the telescopic cylinder 13 is shortened, and the hydraulic pump 14 is raised.

[0039] As another optional implementation, the telescopic mechanism may also be an electric push rod or other mechanism.

[0040] The output shaft of the motor 17 is connected to the input end of the hydraulic pump 14 through the telescopic transmission shaft 15, so as to drive the hydraulic pump 14 to absorb grease. In this embodiment, the telescopic transmission shaft 15 includes a first transmission shaft section 15-1, a second transmission shaft section 15-2 and a third transmission shaft section 15-3 which are sealed and sleeved in sequence, and adjacent transmission shaft sections are connected to each other in a relatively slidable manner through a sliding groove and a sliding block.

[0041] In this embodiment, the telescopic transmission shaft 15 is located in the telescopic cylinder 13 .

[0042] The oil outlet joint 16-1 at the upper end of the telescopic oil outlet pipe 16 is installed on the annular barrel cover 7, and the lower end is connected to the oil outlet of the hydraulic pump 14. Specifically, the telescopic oil outlet pipe 16 also includes a first oil outlet pipe section 16-2, a second oil outlet pipe section 16-3 and a third oil outlet pipe section 16-4 which are sealed and sleeved in sequence.

[0043] The oil inlet of the hydraulic pump 14 is located outside the telescopic sleeve 12 and directly draws grease from the bottom of the grease barrel.

[0044] During operation, the lifting frame 2 is first raised, a new grease barrel is replaced, and then the lifting frame 2 is lowered, and the annular barrel cover 7 is covered on the grease barrel. Then the telescopic cylinder 13 is controlled to move, the grease pump is sunk to the bottom of the grease barrel, and the telescopic sleeve 12, the telescopic transmission shaft 15 and the telescopic oil outlet pipe 16 are passively extended and retracted following the hydraulic pump 14. Then the two-position three-way solenoid valve 6 is controlled to move, so that the annular pressure plate 10 moves downward, exerts pressure on the grease, and the outer elastic bellows 8 and the inner elastic bellows 9 can scrape off the grease on the barrel wall and the telescopic sleeve 12; at the same time, the motor 17 is started, and the motor 17 drives the hydraulic pump 14 to start working through the telescopic transmission shaft 15, sucking the grease and pumping it out along the telescopic oil outlet pipe 16. When the proximity switch 11 sends out an oil-free alarm signal, the motor 17 can be manually or through the PLC to control the power off, the hydraulic pump 14 stops working, and the telescopic cylinder 13 is controlled to retract, so that the hydraulic pump 14 returns to the position close to the annular barrel cover 7, and finally the lifting frame 2 is raised, waiting for the operator to replace the grease barrel.

[0045] It should be noted that, for those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. The scope of the present invention is defined by the claims rather than the above description.

Claims

1. A telescopic pressure scraping type grease replenishing device, comprising a motor (17) and a hydraulic pump (14), characterized in that: It also includes a frame, an oil pressing mechanism, a proximity switch (11), a telescopic sleeve (12), a telescopic mechanism, a telescopic transmission shaft (15) and a telescopic oil outlet pipe (16); The frame comprises a bottom plate for placing a grease barrel and a vertical frame (1) connected to the bottom plate, and a lifting frame (2) and a lifting cylinder (4) for driving the lifting frame (2) to move up and down are installed on the vertical frame (1); The oil pressing mechanism comprises an annular barrel cover (7) and an annular pressing plate (10) arranged above and below, the annular barrel cover (7) being used for buckling onto the grease barrel and being connected to the lifting frame (2); the outer edge of the annular barrel cover (7) is connected to the outer edge of the annular pressing plate (10) via an outer elastic bellows (8), and the inner edge of the annular barrel cover (7) is connected to the inner edge of the annular pressing plate (10) via an inner elastic bellows (9), thereby forming an annular inflation cavity, and an inflation solenoid valve is installed on the annular barrel cover (7); the proximity switch (11) is installed on the annular pressing plate (10); The upper end of the telescopic sleeve (12) is fixedly connected to the annular barrel cover (7), and the lower end is fixedly connected to the hydraulic pump (14); the motor (17) is mounted on the upper end of the telescopic sleeve (12), and the telescopic mechanism, the telescopic transmission shaft (15) and the telescopic oil outlet pipe (16) are all located inside the telescopic sleeve (12); the upper end of the telescopic mechanism is connected to the upper end of the telescopic sleeve (12), and the lower end is connected to the hydraulic pump (14), and is used to drive the hydraulic pump (14) to move up and down; the output shaft of the motor (17) is connected to the input end of the hydraulic pump (14) through the telescopic transmission shaft (15), and is used to drive the hydraulic pump (14) to absorb grease; the oil outlet joint (16-1) at the upper end of the telescopic oil outlet pipe (16) is mounted on the annular barrel cover (7), and the lower end is connected to the oil outlet of the hydraulic pump (14); the oil inlet of the hydraulic pump (14) is located outside the telescopic sleeve (12).

2. The telescopic pressure scraping type grease supply device according to claim 1, characterized in that: The telescopic mechanism is a telescopic cylinder (13).

3. The telescopic pressure scraping type grease replenishing device according to claim 2, characterized in that: The telescopic transmission shaft (15) is located in the telescopic cylinder (13).

4. The telescopic pressure scraping type grease supply device according to claim 2, characterized in that: The telescopic cylinder (13) comprises a base at the upper end, and also comprises a plurality of cylinder pipe sections which are sequentially sealed and sleeved together; adjacent cylinder pipe sections are sealed and sleeved together at the locations where they are sealed and sleeved together, and are surrounded by respective pipe walls and annular baffles to form an annular cavity; and vent holes are provided in the pipe walls of the other cylinder pipe sections except the lowest cylinder pipe section, and the ends of the vent holes are connected to the corresponding annular cavities; The base is provided with a first air inlet and outlet (13-1) and a second air inlet and outlet (13-2); the first air inlet and outlet (13-1) is connected to the inner cavity of the telescopic cylinder (13); and the second air inlet and outlet (13-2) is connected to the vent hole in the uppermost cylinder pipe section.

5. The telescopic pressure scraping type grease supply device according to claim 1, characterized in that: The telescopic transmission shaft (15) comprises a plurality of transmission shaft sections which are sealed and sleeved in sequence, and adjacent transmission shaft sections are connected to each other in a relatively slidable manner via sliding grooves and sliding blocks.

6. The telescopic pressure scraping type grease supply device according to claim 1, characterized in that: The telescopic oil outlet pipe (16) also comprises a plurality of oil outlet pipe sections which are sealed and sleeved in sequence.

7. The telescopic pressure scraping type grease supply device according to any one of claims 1 to 6, characterized in that: A roller (3) is mounted on the lifting frame (2), and the roller (3) matches the guide groove on the vertical frame (1).

8. The telescopic pressure scraping type grease supply device according to any one of claims 1 to 6, characterized in that: The bottom plate is also provided with walking wheels (5).

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