CN100419330C - A high-pressure grease pump - Google Patents

Abstract

A high-pressure grease pump, including a worm drive mechanism, a main shaft, a seat body, a deep groove ball bearing, a plunger, a grease cylinder, a dial, and a partition plate. There are multiple grease inlets on the partition plate, and the ports of the seat body are There is a pump body connected with the partition, and the middle part of the pump body has a through hole set outside the deep groove ball bearing; the pump body is provided with the same number of grease inlet channels and grease outlets as the grease inlet, and is set There is a bevel gear head piston with on-off grease inlet channel, the plunger is set on the inner side of the pump body opposite to the bevel gear head piston; there is a bevel gear head piston under the shoulder of the eccentric block of the main shaft to match the bevel gear head piston and turn it 180° ° conical shaft gear. The radial reciprocating movement of the plunger is forced by the eccentric block to form a gradually increasing liposuction plunger chamber and a gradually decreasing fat discharge plunger chamber, and the sealing of the fat inlet and outlet is forced by the rotation of the bevel gear head piston , its compact structure, high mechanical efficiency, reliable performance, small size, easy to move, easy to use, low cost, and has a wide range of practicability.

Description

A high-pressure grease pump

technical field

The invention relates to a high-pressure lubricating grease pump, which is especially suitable for machines or equipment injecting multiple lubricating points at the same time.

Background technique

At present, many large and medium-sized equipment in the chemical industry, building materials, mining, petroleum and other industries are mostly lubricated by manually filling grease. Due to the poor working environment of the machine and many lubricating parts, the demand for grease for each lubricating part Not the same, so it is easy to cause poor lubrication of the machine due to insufficient filling and other reasons, thereby shortening the service life of the machine.

The grease pump in the prior art is a plunger-type oil injection, and the plunger is driven to reciprocate by means of a cylindrical cam oil distribution plate or a sinusoidal mechanism to achieve the purpose of liposuction and fat discharge, but the cylindrical cam oil distribution plate is difficult to process And the sinusoidal mechanism has the disadvantage of large moving inertia. The closing of the grease outlet depends on the pressure of the spring to push the plunger to move. The grease will harden for a long time and cause the spring to fail. When the grease suction port is closed, part of the grease sucked into the plunger cavity will leak out, and the volumetric efficiency is low.

Contents of the invention

Technical problem: The object of the present invention is to provide a high-pressure grease pump that is compact in structure, reliable in oil injection, easy to use, easy to process, low in manufacturing cost, and replaces manual oil injection.

Technical solution: The present invention is a high-pressure grease pump, which includes a worm drive mechanism driven by a motor, a main shaft with an eccentric block connected to the worm drive mechanism, a seat body, and a deep groove ball bearing set on the eccentric block of the main shaft, The T-shaped plunger matched with the ring groove in the outer diameter of the deep groove ball bearing, the base body is provided with a grease cylinder, and the grease cylinder is equipped with a dial fixed on the main shaft, between the base body and the grease cylinder There is a partition, and there are multiple grease inlets on the partition. The port of the seat is provided with a pump body connected to the partition. The middle part of the pump body is provided with a through hole set outside the deep groove ball bearing; The body is provided with the same number of grease inlet passages and grease outlets as the grease inlet, and a bevel gear head piston that makes the grease inlet passages on and off, and the plunger is set on the inner side of the pump body opposite to the bevel gear head piston. ; Below the shoulder of the eccentric block of the main shaft, there is a conical shaft gear that cooperates with the piston of the bevel gear head and stirs it to rotate 180°.

The invention relates to a high-pressure grease pump. The grease outlet of the pump body is arranged obliquely, and a grease outlet pipe is arranged at the outlet; the conical surface of the conical shaft gear is symmetrically provided with three teeth at positions 180° apart. ; The worm drive mechanism is located in the seat or outside the seat.

Beneficial effects: the present invention is a high-pressure lubricating grease pump, which is most suitable for machines or equipment that inject multiple lubricating points at the same time. The pump body is set on the outside of the deep groove ball bearing. The pump body is provided with a grease inlet and a grease outlet, and a bevel gear head piston with on-off grease inlet and outlet channels. The plunger opposite to the piston passes through the eccentric block. The deep-groove special ball bearing set on the top acts as an eccentric sleeve to force the plunger to reciprocate radially, forming a gradually increasing liposuction plunger cavity and a gradually decreasing fat discharge plunger cavity. The sealing is forced through the meshing of the gears, which not only overcomes the defect of shortening the service life of the machine due to untimely filling during manual lubrication, but also improves the reliability as a whole. It has a compact structure, small size, convenient use, and low cost. Easy to maintain, easy to move, and has a wide range of practicality.

Description of drawings

Fig. 1 is a structural diagram of a high-pressure grease pump of the present invention.

Fig. 2 is a sectional structure diagram along A-A of Fig. 1 .

Fig. 3 is a B-B sectional structure diagram of Fig. 1 .

In the figure: 1-seat body, 2-main shaft, 3-tapered roller bearing, 4-worm drive mechanism, 5-deep groove ball bearing, 6-plunger, 7-inner bevel gear, 8-piston, 9-pump Body, 10-bolt, 11-nut, 12-set screw, 13-grease inlet, 14-grease cylinder, 15-lid, 16-nut, 17-setting wheel, 18-transverse partition, 19- Sleeve, 20-sleeve, 21-fat outlet, 22-fat pipe.

Detailed ways

An embodiment of the present invention will be further described below in conjunction with accompanying drawing:

A high-pressure grease pump of the present invention, as shown in Figure 1: it mainly consists of a base body 1, a main shaft 2, a worm drive mechanism 4, a deep groove ball bearing 5, a plunger 6, an inner bevel gear 7, a piston 8, and a pump body 9 , Grease cylinder 14, dial wheel 17 constitutes. The main shaft 2 is vertically placed as a stepped shaft with an eccentric block, and the upper part passing through the transverse partition 18 is equipped with a dial wheel 17, and the lower part is sequentially provided with a deep groove ball bearing 5, an internal bevel gear 7, a shaft sleeve 19, and a worm drive mechanism 4, the axle sleeve 20, the bottom end of the main shaft 2 is located in the bearing seat that the tapered bearing 3 is equipped with at the bottom of the seat body 1. The worm transmission mechanism 4 is driven by a motor, and transmits power to the main shaft 2 and the deep groove ball bearing 5 and the inner bevel gear 7 connected thereto as eccentric sleeves. The deep groove ball bearing 5 is installed on the eccentric block of the main shaft 2, the deep groove ball bearing 5 and the eccentric block are interference fit, and the outer diameter of the deep groove ball bearing 5 is provided with an annular groove. Grease cylinder 14 is connected on the seat body 1 by bolt 10 and nut 11, and the setting wheel 17 in the grease cylinder 14 rotates together with main shaft 2, and the upper end of setting wheel 17 is fixed by nut 16. Transverse dividing plate 18 is arranged between seat body 1 and grease cylinder 14, has six grease inlets 13 on transverse dividing plate 18, and the port of seat body 1 is provided with the pump body 9 that links to each other with transverse dividing plate 18, and pump body 9 and the transverse partition 18 are fastened on the seat body 1 by screws. The pump body 9 is cylindrical, with a through hole in the middle, which is set on the outside of the deep groove ball bearing 5. There are six grease chambers in the pump body 9, which are evenly distributed in the pump body, as shown in Figure 2. The six grease chambers opened in the radial direction of the pump body 9 communicate with the grease inlet 13 upwards and communicate with the grease outlet 21 downwards. The grease outlet 21 is arranged obliquely. 21 places are connected with the fat outlet pipe 22 that lubricating grease is led to the outside of the seat of the pump from the grease outlet, as shown in Figure 3. Six bevel gear head pistons 8 and T-shaped plunger 6 are housed in the six grease chambers. The head of the bevel gear head piston 8 is set outside the pump body 9, and the tail of the T-shaped plunger 6 extends out of the middle of the pump body 9. Outside the through hole, it cooperates with the annular groove in the outer diameter of the deep groove ball bearing 5, and acts as a linear pulling and compressing motion with the rotation of the deep groove ball bearing 5. The rod body of the bevel gear head piston 8 is axially provided with a through hole for entering and exiting grease, and radially provided with a hole communicating with the axial direction; the deep groove ball bearing 5 is connected with the plunger 6 . The bevel shaft gear 7 is located under the shoulder of the eccentric block of the main shaft 2. There are only six teeth on the inner bevel gear 7, and the six teeth are divided into two groups, which are symmetrical to each other and separated by 180 degrees. There are three teeth on each side. Gear 7 meshes with the bevel gear at the head of the bevel gear head piston 8, and the bevel gear at the head of the bevel gear head piston 8 is moved by the inner bevel gear 7. Every time it is moved, the bevel gear head piston 8 is rotated 180 degrees to carry out the process. Switching between the grease port and the grease outlet, that is, when the grease port of the bevel gear head piston 8 faces up, it is connected to the grease inlet port, and the fat is sucked through the movement of the T-shaped plunger 6; when the grease port of the plunger 8 faces down When it is at an angle, it is connected with the grease outlet, and the grease is discharged through the movement of the T-shaped plunger 6, and the bevel gear head piston 8 remains fixed at other angles, thereby realizing the grease inlet and discharge.

Claims (4)

1. A high-pressure grease pump, which includes a worm drive (4) driven by a motor, a main shaft (2) with an eccentric block connected to the worm drive (4), a seat (1), and a sleeve on the main shaft (2) The deep groove ball bearing (5) on the eccentric block, the T-shaped plunger (6) matched with the circular groove in the outer diameter of the deep groove ball bearing (5), and the seat body (1) is provided with The grease cylinder (14), the grease cylinder (14) is provided with a dial (17) fixed on the main shaft (2), and a dividing plate (18) is provided between the seat body (1) and the grease cylinder (14), There are a plurality of grease inlets (13) on the partition (18), and it is characterized in that: the port of the seat (1) is provided with a pump body (9) connected to the partition (18), and the pump body ( 9) There is a through hole set outside the deep groove ball bearing (5) in the middle part; the pump body (9) is provided with the same number of grease inlets and grease outlets (21) as the grease inlets (13), and The bevel gear head piston (8) with on-off grease inlet channel, the T-shaped plunger (6) is set on the inner side of the pump body (9) opposite to the bevel gear head piston (8); the eccentricity of the main shaft (2) Below the block shoulder is provided with the bevel shaft gear (7) that matches with the bevel gear head piston (8) and stirs it to rotate 180°. 2. A high-pressure grease pump according to claim 1, characterized in that: the grease outlet (21) of the pump body (9) is arranged obliquely, and a grease outlet pipe (22) is provided at the outlet. 3. A high-pressure grease pump according to claim 1, characterized in that: the conical surface of the conical shaft gear (7) is symmetrically provided with three teeth at positions 180° apart. 4. A high-pressure grease pump according to claim 1, characterized in that: the worm drive mechanism (4) is set inside or outside the base (1).

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