CN2295103Y - Quantitative oil-dropping device - Google Patents

Abstract

The utility model relates to a quantitative dropping oil device, which is used for supplying lubricating oil for mechanical equipment in a quantitative mode. The utility model is composed of a main valve body, an auxiliary valve body, a one-way valve core, a spring, dripping oil pipe, etc. A dripping oil cavity is arranged among the inner wall of a valve cavity, the valve core, and the auxiliary valve body, and the spring is arranged in the dripping oil cavity. When fuel-feed system is boosted, the one-way valve core falls back, a valve port is opened, the spring is compressed, the oil in the dripping oil cavity drips from the dripping oil pipe, and meanwhile, and an oil storage cavity is formed between the one-way valve core and a cushion ring. When fuel-feed system is under the condition of pressure relief, the spring returns, and the valve port is closed, and oil storage flows into the dripping oil cavity. The utility model has the advantages of simple structure, and low cost. Oil pressure is passed by a sealing ring, and thus, relative movement parts can not be worn, and the service life of the dropping oil device can be prolonged.

Description

Quantitative drop feed oiler

The utility model relates to the device to machinery rationing lubricant oil.

Use quantitative drop feed oiler at present in the lubricating oil supply system terminal, its structure as shown in Figure 1, by oil-feed screw 1, small piston 3, one-way valve 5, main valve body 4, pay valve body 6, oil dripping tube 9 is formed, the oil-feed screw is the pipe fitting that spiral shell emits the end sealing, oil inlet hole 2 is arranged on the wall, oil-feed screw and main valve body are fixed on the distributor socket 15 of oil supply system with scyewed joint, oil dripping chamber and shoe cream room are arranged in the main valve body, small piston 3 is arranged in the oil dripping chamber, oil dripping chamber one end communicates with one-way valve, main, pay valve body with scyewed joint, oil dripping tube is fixed on the oil outlet of paying valve body 6 by sealing awl pad 7 and housing pin 8, quantitatively piston 13 is by spring 12, transfer whelk silk 10, locking nut 11 is fixed in the shoe cream room, and shoe cream room has oil circuit to communicate with the oil dripping chamber.When oil supply system is boosted, pressure oil enters oil-feed screw 1 inner chamber by oil inlet hole 2, promote small piston 3 reaches, fluid in the oil dripping chamber is extruded through one-way valve 5 and oil dripping tube 9, open the shoe cream room oil circuit simultaneously, pressure oil enters shoe cream room, promotes quantitative piston 13 reaches, and the shoe cream room volume increases oil storage; When system's release, spring 14 resiliences reset small piston, and quantitatively piston 13 resets under spring 12 effects, and the oil storage in the shoe cream room is depressed in the oil dripping chamber.This drop feed oiler complex structure, oil storage and oil dripping are finished in two active chambers, small piston is the full-metallic injecting type of directly uniting, and element precision is required high, easily leaks during use, easily kills, after using wearing and tearing continuously, sealing is poor, causes drop feed oiler very low working life, and the manufacturing process complexity, difficulty is big, the overall cost height.

The purpose of this utility model provides a kind of simple in structure, long service life, the quantitative drop feed oiler that processing cost is low.

The quantitative drop feed oiler that the utility model proposes, by main valve body, pay valve body, nonreturn valve core, spool, spring, oil dripping tube is formed, main, pay valve body with scyewed joint, oil dripping tube is fixed on pays the valve body oil outlet, nonreturn valve core, spool, spring is in the valve pocket of main valve body, spool is a hollow pipe fitting, the seal ring sealing is arranged between spool and the valve pocket inwall, nonreturn valve core is the elasticity cone valve, spring is between spool and valve pocket inwall, by liner, seal ring, packing ring withstands on nonreturn valve core on the valve port, have on the spool side opening with by spool, main valve body, paying the oil dripping chamber that valve body and seal ring surround communicates.

Nonreturn valve core and packing ring contact position have annular groove.

Described quantitative drop feed oiler also comprises a coupling, and this coupling is the oil-feed screw, is fixed on the main valve body filler opening with scyewed joint, has oil inlet hole on the sidewall, and inside has oil circuit to communicate with the main valve body filler opening.

Its working principle is: when oil supply system is boosted, pressure oil promotes nonreturn valve core and moves and withstand on the spool end, pressure oil enters in the annular groove of nonreturn valve core rear end through valve port and nonreturn valve core sideshake, and promote to move after packing ring, seal ring and liner continue, withstand on up to liner on the end face of paying valve body; Between nonreturn valve core and packing ring, form shoe cream room and oil storage, while oil dripping chamber volume reducing, fluid wherein flows out through spool side opening and oil dripping tube; During the system release, because the effect of spring, nonreturn valve core resets, close port, and the fluid in the shoe cream room flows in the oil dripping chamber through the center hole and the side opening of spool.The distance of adjusting liner and paying between the valve body end face can be adjusted each oil dripping amount.

The utility model is simple in structure, and oil storage and oil dripping are finished by a chamber, and structure is ingenious, good processability, precision guarantees that easily processing cost is low, utilizes the oil sealing effect of seal ring, no leakage phenomenon takes place in high pressure, pressure maintaining period, utilize seal ring as oil pressure transmission and sealing component simultaneously, make each relevant moving parts not have wearing and tearing, thereby can prolong the working life of drop feed oiler greatly, the thickness of adjusting washer (disk) or liner can be adjusted each oil dripping amount.

Fig. 1 is original amount drop feed oiler structural representation.

Fig. 2 is the quantitative drop feed oiler structural representation of the utility model.

Fig. 3 is the utility model working state schematic representation.

Embodiment is further described the utility model below in conjunction with accompanying drawing.

By shown in Figure 2, there is internal thread at the valve pocket two ends of main valve body 4, left side and plug screw 17 and oil-feed screw 1 are with scyewed joint, a right side and pair valve body 6 scyewed joint, center hole one end of plug screw 17 is the one-way valve valve port, the oil-feed screw is fixed on drop feed oiler on the distributor socket 15 of oil supply system by pad 16, have oil inlet hole 2 on the oil-feed screw, inside has oil circuit to communicate with valve port, nonreturn valve core 18 is taper round platform rubber valve, spool 23 is a hollow pipe fitting, right-hand member has outside convex shoulder, with 20 sealings of O RunddichtringO, spring 22 withstands on the convex shoulder of spool 23 right-hand members on pair valve body 6 between spool and the main valve body valve cavity wall, and the other end is by liner 21, O RunddichtringO 20, the right side that packing ring 19 is gone up plug screw 17 with nonreturn valve core 18 small end faces top, valve port is closed, main valve body 4, pay valve body 6, the cavity volume that spool 23 and seal ring 20 surround is the oil dripping chamber, has side opening 24 to communicate with the oil dripping chamber on the spool 23, and nonreturn valve core 18 large end faces and packing ring 19 contact position have annular groove 25; Oil dripping tube 9 is fixed on the oil outlet of paying valve body 6 by sealing awl pad 7 and housing pin 8.Its working procedure is as follows: when oil supply system is boosted, pressure oil is through the oil inlet hole 2 of oil-feed screw 1, enter in the drop feed oiler, promote nonreturn valve core 18 and packing ring 19, seal ring 20, liner 21 retreats, spring 22 is compressed, sturdy until nonreturn valve core 18 right sides and spool 23 left sides, valve port is opened simultaneously, pressure oil enters in the annular groove 25 of its right-hand member through the sideshake of valve port and nonreturn valve core, and promotion packing ring 19, seal ring 20 and liner 21 continue to retreat, and offset oil dripping chamber volume reducing until the right-hand member and the left side of paying valve body 6 of liner, between nonreturn valve core 18 and packing ring 19, form shoe cream room 26, (dash area is a pressure oil) as shown in Figure 3 simultaneously; When system's release, spring 22 resiliences make nonreturn valve core 18 reset close port, pressure oil in the annular groove makes nonreturn valve core 18 diameter expansion, annular groove 25 edges and valve cavity wall are adjacent to, and can prevent that the oil storage in the shoe cream room from refluxing, and spring 22 continues to promote seal ring 20 and packing ring 19 moves to left, oil dripping chamber volume increases, form negative pressure, the oil storage in the shoe cream room flows in the oil dripping chamber through the center hole and the side opening 24 of spool 23, is adjacent to nonreturn valve core 18 up to packing ring 19.Repeat above-mentioned action, after being full of oil in the oil dripping chamber, system boosts once more, the shoe cream room oil storage, and spring 22 is compressed simultaneously, oil dripping chamber volume reducing, the oil in the oil dripping chamber flows out through spool 23 side openings 24 and oil dripping tube 9, finishes the oil dripping action.Adjust the thickness of packing ring or liner, just can regulate liner and the distance H of paying the valve body end face, just can regulate the each oil reserve of shoe cream room, thereby can adjust the size of each oil dripping amount.

Claims (4)

1, a kind of quantitative drop feed oiler is made up of main valve body, pair valve body, nonreturn valve core, spring, oil dripping tube, and master, pair valve body are with scyewed joint, and oil dripping tube is fixed on the oil outlet of paying valve body, it is characterized in that nonreturn valve core is a cone valve; Also have a spool in the valve pocket of nonreturn valve core rear end, the stroke of nonreturn valve core is spacing by spool, and spool is a hollow pipe fitting, and the seal ring sealing is arranged between spool and the valve cavity wall, and the cavity volume that is surrounded by main valve body, pair valve body, spool and seal ring is the oil dripping chamber; There is side opening to communicate on the spool with the oil dripping chamber; Spring is arranged in the oil dripping chamber, and an end withstands on nonreturn valve core on the valve port by liner, seal ring and packing ring.

2, quantitative drop feed oiler according to claim 1 is characterized in that described nonreturn valve core is the elasticity cone valve, has annular groove with the packing ring contact position.

3, quantitative drop feed oiler according to claim 2, its feature has a plug screw at the filler opening of described nonreturn valve core, is fixed in the main valve body valve pocket with scyewed joint, and center hole is arranged on the plug screw, and an end of center hole is a valve port.

4, according to claim 1 or 2 or 3 described quantitative drop feed oilers, it is characterized in that described quantitative drop feed oiler comprises a coupling, this coupling is the oil-feed screw, be fixed on the filler opening of main valve body with scyewed joint with main valve body, on the oil-feed screw sidewall oil inlet hole is arranged, in have oil circuit to communicate with the main valve body filler opening.

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