CN204477662U - A kind of lithium grease lubricating grease automatic filling device - Google Patents

Abstract

The utility model discloses a kind of lithium grease lubricating grease automatic filling device, bearing, bearing is connected with oil drum, oil drum bottom is provided with oil pick-up tube, oil pick-up tube is stretched out rear end from bearing bottom and is fixed in oil pump, oil pump is provided with oil outlet tube, circular piston is provided with in oil drum, in the middle part of piston tip, screw rod is installed, oil drum top middle portion is connected with axle sleeve, screw rod upper end is inserted in this axle sleeve, and axle sleeve top is provided with secondary angular wheel free to rotate, has the tapped hole matched with external thread of screw in the middle part of secondary angular wheel; Oil drum tip edge is also provided with motor by motor cabinet, and motor output end is provided with rotating shaft, and shaft end is connected with the main angular wheel be meshed with secondary angular wheel.The utility model has the advantage of constant pressure, there will not be hypotony to cause the problem of the few and lubrication effect difference of oil pump capacity; And there will not be that oil drum internal pressure is too high cannot add situation about filling, avoid repeatedly frequently annotating, can effectively save manpower and time.

Description

A lithium base grease automatic filling device

technical field

The utility model relates to the technical field of vehicle centralized lubrication, in particular to an automatic filling device for lithium-based grease lubricating grease.

Background technique

With the rapid development of the automobile industry, the energy loss and wear caused by the friction pairs of automobile moving parts cannot be ignored. The lubrication system plays a vital role. In the relevant regulations of our country, the centralized lubrication system of automobile chassis has become a high It is a necessary device for large and medium-sized passenger cars above the grade. The main part of the centralized lubrication system is grease, which is a structural dispersion system formed by base oil, thickener and various additives, and is a typical non-Newtonian fluid. Due to the complexity of the medium flow, the structural design of the centralized lubrication system has been mainly dependent on the experience and skills of engineers and technicians for a long time. Too large, grease deposits and deterioration at the bottom of the fuel tank, insufficient grease injection pressure at the end of the oil separator, etc. The lubricating grease in the centralized lubrication system is generally filled with lubricating grease for the parts of the vehicle to be lubricated regularly through the automatic lubricator. The patent document CN203286249U just discloses a kind of automatic lubricator as publication number, and it comprises cup body, is provided with oil filling port on the outer wall of cup, and oil filling port is closed with dry grease nipple, is provided with oil filling channel on the cup body wall, and the oil filling channel One end communicates with the oil injection port, and the other end of the oil injection channel communicates with the oil inlet located on the bottom of the cup. A connecting rod is fixed on the bottom of the cup body. There are threads on the outer wall of the lower part of the connecting rod for threaded connection with various equipment. The inner opening of the connecting rod There are through holes, and the cup body also has a through hole at the corresponding connecting rod through hole. The through hole on the connecting rod communicates with the through hole on the cup body. There is a hole at the top, a refueling rod is arranged in the cup cover, a sealing disc is fixed on the bottom of the refueling rod, an annular groove is arranged on the outer circle of the sealing disc, and an annular sealing ring is contained in the ring of the sealing disc. This solution pressurizes the lubricating grease in the cup cover through the spring-driven refueling rod and the sealing disc. Obviously, the spring has different elastic forces under different stretching lengths, that is, its pressure on the lubricating grease will change, so that The oil outlet pressure of the grease is constantly changing, which affects the oil output and lubrication efficiency of the lubrication port; and after the grease is consumed, new grease needs to be added from the grease nipple, and the power to drive the sealing disc to move up comes from The filling pressure of the lubricating grease, when the spring is compressed, the elastic force is the largest, which is opposite to the filling pressure direction. When the elastic force is greater than the filling pressure, the lubricating grease can no longer be filled, and it is easy to cause the amount of lubricating grease in the cup cover to be insufficient. , requires frequent refilling, and consumes more manpower and time.

Utility model content

The utility model aims to provide an automatic filling device for lithium-based grease lubricating grease to solve the existing problems in the existing automatic lubricating device, such as constant change of conveying pressure, low oil output and low lubrication efficiency, dissatisfaction with filling of lubricating grease, and excessive The problem of multiple fillings, manpower and time consumption.

The utility model is achieved through the following technical solutions:

An automatic filling device for lithium-based grease, comprising a support with a circular groove on the top, an oil barrel is fixedly connected to the support, the oil barrel is clamped in the circular groove on the top of the support, and the bottom of the oil barrel is An oil suction pipe is provided, and the end of the oil suction pipe protrudes from the bottom of the support and is fixedly connected to the oil pump. The oil pump is provided with an oil outlet pipe. A circular piston is arranged inside the oil barrel, and a screw is installed in the middle of the top of the piston. The upper end of the screw is Protruding from the top of the oil drum, the middle part of the top of the oil drum is fixed with a shaft sleeve, the upper end of the screw is inserted into the sleeve, the top of the shaft sleeve is equipped with a secondary bevel gear that can rotate freely, and the middle part of the secondary bevel gear has an external thread that is compatible with the screw. Matching threaded holes; the top edge of the oil barrel is also equipped with a motor through the motor seat, the output end of the motor is provided with a rotating shaft, and the end of the rotating shaft is fixedly connected with the main bevel gear meshed with the secondary bevel gear.

The bottom edge of the oil barrel is provided with a through hole, and a check valve is arranged in the through hole, and an oil nozzle is arranged outside the check valve, and the oil nozzle protrudes from the edge of the support.

The bottom end of the screw rod is sleeved with a bearing, and the outer side of the bearing is fixedly connected in the piston.

There is a gap of 1-2 mm between the shaft sleeve and the screw rod.

A sealing ring is embedded on the edge of the piston.

A limit block is fixedly connected to the top of the screw.

The beneficial effects of the utility model are:

Compared with the prior art, the lithium-based grease automatic filling device provided by the utility model drives the main bevel gear to rotate the auxiliary bevel gear through the motor, and then drives the screw to rotate. Since the position of the auxiliary bevel gear is not change, so the screw can move vertically, and the piston at the bottom of the screw can pressurize the lubricating grease in the oil barrel. Compared with the traditional spring pressurization, the utility model has the advantage of constant pressure and will not appear Too low pressure leads to the problems of less oil output and poor lubricating effect; and when adding new grease, the screw can be raised to the highest level, and the oil can be quickly filled through the grease nozzle, and there will be no excessive pressure in the oil tank to prevent In the case of full filling, ensure that the amount of lubricating grease is sufficient for each filling, and avoid multiple frequent fillings, which can effectively save manpower and time and improve efficiency.

Description of drawings

Fig. 1 is the structural representation of the utility model;

In the figure: 1-support, 2-oil barrel, 3-piston, 4-shaft sleeve, 5-secondary bevel gear, 6-screw, 7-main bevel gear, 8-rotating shaft, 9-motor, 10- Motor seat, 11-oil nozzle, 12-check valve, 13-oil suction pipe, 14-oil pump, 15-oil outlet pipe, 16-sealing ring, 17-limit block, 18-bearing.

Detailed ways

Below in conjunction with accompanying drawing, the technical scheme of the present utility model will be further described, but the required protection scope is not limited to the description;

As shown in Figure 1, the lithium-based grease automatic filling device provided by the utility model includes a support 1 with a circular groove on the top, an oil barrel 2 is fixedly connected to the support 1, and the oil barrel 2 is clamped on the In the circular groove at the top of the support 1, the bottom end of the oil barrel 2 is provided with an oil suction pipe 13, and the end of the oil suction pipe 13 protrudes from the bottom end of the support 1 and is fixedly connected to the oil pump 14, and the oil pump 14 is provided with an oil outlet pipe 15, A circular piston 3 is arranged inside the oil barrel 2, and a screw rod 6 is installed in the middle part of the top of the piston 3. The upper end of the screw rod 6 protrudes from the top of the oil barrel 2, and a shaft sleeve 4 is fixedly connected to the middle part of the top end of the oil barrel 2, and the upper end of the screw rod 6 is inserted into the Inside the bushing 4, a free-rotating secondary bevel gear 5 is installed on the top of the bushing 4, and the middle part of the secondary bevel gear 5 has a threaded hole matching the external thread of the screw rod 6; the top edge of the oil drum 2 also passes through the motor seat 10 is equipped with a motor 9, the output end of the motor 9 is provided with a rotating shaft 8, and the end of the rotating shaft 8 is fixedly connected with a main bevel gear 7 meshing with the auxiliary bevel gear 5. The main bevel gear 7 driven by the motor 9 drives the auxiliary bevel gear 5 to rotate, and then the screw rod 6 is driven to rotate. Since the position of the auxiliary bevel gear 5 remains unchanged, the screw rod 6 can move vertically, and the piston 3 at the bottom end of the screw rod 6 The lubricating grease in the oil barrel 2 can be pressurized. Compared with the traditional spring pressurization, the utility model has the advantage of constant pressure, and there will be no problems of low oil output and poor lubricating effect caused by too low pressure. .

The bottom edge of the oil barrel 2 is provided with a through hole, and a check valve 12 is arranged in the through hole, and an oil nozzle 11 is arranged outside the check valve 12, and the oil nozzle 11 protrudes from the edge of the support 1 . Grease can be quickly filled into the oil barrel 2 through the grease nozzle 11, and grease backflow can be avoided through the check valve 12.

The bottom end of the screw rod 6 is sleeved with a bearing 18, the outer side of the bearing 18 is fixed in the piston 3, and the screw rod 6 and the piston 3 are connected through the bearing 18, so that the screw rod 6 can rotate freely on the piston 3, reducing friction loss.

In order to avoid interference affecting the rotation of the screw rod 6 , a gap of 1-2 mm is left between the bushing 4 and the screw rod 6 .

In order to improve the sealing performance of the piston 3 , a sealing ring 16 is embedded on the edge of the piston 3 .

In order to prevent the screw rod from fully extending into the oil drum 2 , a limit block 17 is fixedly connected to the top of the screw rod 6 .

It is generally divided into two states during use, one is full oil pressurization, and the other is empty oil filling.

When pressurized, the lubricating grease in the oil barrel 2 is fully loaded, start the motor 9, the motor 9 drives the rotating shaft 8 to rotate, and the rotating shaft 8 can drive the main bevel gear 7 to rotate, and the main bevel gear 7 can drive and mesh with it The auxiliary bevel gear 5 rotates, because the position of the auxiliary bevel gear 5 will not move with the rotation, so the auxiliary bevel gear 5 can drive the screw 6 to rotate through the threaded hole opened in the middle, and the screw 6 can move downward To push the piston 3 to move down, with the downward movement of the piston 3, the lubricating grease in the oil drum 2 is pressurized. That is, the lubricating grease can be sent into the oil outlet pipe 15 and then sent to different lubricating ports respectively.

When the lubricating grease is exhausted and new lubricating grease needs to be added, the motor 9 reverses, and the auxiliary bevel gear 5 drives the screw 6 to move upwards. At this time, the piston 3 moves upwards, and at the same time, lubricates the oil tank 2 through the oil nozzle 11. Grease until piston 3 is raised to the highest position.

Claims (6)

1. a lithium grease lubricating grease automatic filling device, comprise the bearing (1) that top has circular trough, bearing (1) is connected with oil drum (2), oil drum (2) is installed in the circular trough at bearing (1) top, oil drum (2) bottom is provided with oil pick-up tube (13), oil pick-up tube (13) is stretched out rear end and is fixed in oil pump (14) from bearing (1) bottom, oil pump (14) is provided with oil outlet tube (15), it is characterized in that: the piston (3) being provided with a circle in described oil drum (2), piston (3) top middle portion is provided with screw rod (6), screw rod (6) upper end is stretched out from oil drum (2) top, oil drum (2) top middle portion is connected with axle sleeve (4), screw rod (6) upper end is inserted in this axle sleeve (4), axle sleeve (4) top is provided with secondary angular wheel (5) free to rotate, secondary angular wheel (5) middle part has the tapped hole matched with screw rod (6) outside thread, oil drum (2) tip edge is also provided with motor (9) by motor cabinet (10), motor (9) output terminal is provided with rotating shaft (8), and rotating shaft (8) end is connected with the main angular wheel (7) be meshed with described secondary angular wheel (5).

2. lithium grease lubricating grease automatic filling device according to claim 1, it is characterized in that: described oil drum (2) bottom margin has through hole, safety check (12) is provided with in through hole, safety check (12) outside is provided with oil nozzle (11), and oil nozzle (11) stretches out bearing (1) edge.

3. lithium grease lubricating grease automatic filling device according to claim 1, is characterized in that: described screw rod (6) bottom is socketed with bearing (18), and this bearing (18) outside is fixed in piston (3).

4. lithium grease lubricating grease automatic filling device according to claim 1, is characterized in that: the gap leaving 1-2mm between described axle sleeve (4) and screw rod (6).

5. lithium grease lubricating grease automatic filling device according to claim 1, is characterized in that: described piston (3) edge is embedded with seal ring (16).

6. lithium grease lubricating grease automatic filling device according to claim 1, is characterized in that: described screw rod (6) top is connected with limiting stopper (17).