CN216009447U

CN216009447U - Brake camshaft capable of being automatically lubricated

Info

Publication number: CN216009447U
Application number: CN202122768770.9U
Authority: CN
Inventors: 潘向明
Original assignee: Lanxi Zhengang Auto Parts Co ltd
Current assignee: Lanxi Zhengang Auto Parts Co ltd
Priority date: 2021-11-12
Filing date: 2021-11-12
Publication date: 2022-03-11
Anticipated expiration: 2031-11-12

Abstract

The utility model discloses a brake camshaft capable of automatic lubrication, which comprises a cam (1), a shaft sleeve (2) and a shaft head (3), wherein the middle part of the shaft sleeve (2) is provided with an oil storage cavity (4), and the surface of the shaft sleeve (2) is provided with a plurality of mounting grooves (5); a communicating channel (6) is arranged between each mounting groove (5) and the oil storage cavity (4), and a capillary tube (7) is arranged in each communicating channel (6); a sponge strip (8) is arranged in the mounting groove (5), and a fixing plate (9) is arranged on the top surface of the sponge strip (8); two injection channels (10) are arranged in the fixed plate (9), and one end part of each injection channel (10) is arranged on the end surface of the fixed plate (9). The utility model discloses not only can improve the utilization ratio of lubricating oil, still have convenient to use, lubricated effectual and the high advantage of structural stability.

Description

Brake camshaft capable of being automatically lubricated

Technical Field

The utility model relates to a camshaft, especially a braking camshaft that can self-lubricate.

Background

Because the brake camshaft on the automobile is generally positioned at the lubricating tail end of the oil pump, the lubricating oil on the camshaft is little when the engine is just started, the camshaft and the valve tappet are easily abraded for a long time, and the service life of the camshaft and even the engine is shortened; therefore, timing lubrication work needs to be carried out on the camshaft, the existing camshaft hand lubrication generally controls interval injection and crankshaft rotation to drive a lubrication part through a central control center of an automobile so as to realize periodic oil injection lubrication work on the camshaft, but the mode needs strict control of injection angle and injection amount, otherwise, the phenomenon of insufficient lubrication or excessive lubrication easily occurs, the waste of lubricating oil is caused, and the integral utilization rate of the lubricating oil is low. Therefore, the problem of low utilization rate of lubricating oil exists in the lubricating process of the existing camshaft.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a brake camshaft that can self-lubricate. The utility model has the advantage of high utilization ratio of lubricating oil.

The technical scheme of the utility model: a brake camshaft capable of being automatically lubricated comprises a cam, a shaft sleeve and a shaft head, wherein an oil storage cavity is arranged in the middle of the shaft sleeve, and a plurality of annular and uniformly distributed mounting grooves are formed in the surface of the shaft sleeve; a communicating channel is arranged between the inner bottom surface of each mounting groove and the side wall of the oil storage cavity, and a capillary tube is arranged in each communicating channel; a sponge strip is arranged in the mounting groove, and a fixing plate is arranged on the top surface of the sponge strip; be equipped with two in the fixed plate and be the symmetric distribution and be the injection channel of slope form, a tip of every injection channel all establishes on the terminal surface of fixed plate, and a tip of every injection channel all establishes on the bottom surface of fixed plate.

In the brake camshaft capable of automatically lubricating, a plurality of lubricating strips which are uniformly distributed are arranged on both sides of the fixed plate, and one end of each lubricating strip is arranged at the top end of the inner side surface of the mounting groove; the lubricating strip is an elastic strip coated with lubricating oil on the surface.

In the brake camshaft capable of automatically lubricating, an oil filling hole is formed in one end of the oil storage cavity, and a sealing plug is mounted on the oil filling hole; a pull ring is arranged on the outer side surface of the sealing plug, and a plurality of clamping blocks which are uniformly distributed are arranged on the side wall of the sealing plug; be provided with a plurality of evenly distributed's draw-in grooves on the inside wall of oil filler point, draw-in groove and the mutual joint of fixture block.

In the brake camshaft capable of automatically lubricating, the two side edges of the sponge strip are provided with the reinforcing frames, the bottom surface of each reinforcing frame is provided with the buffer springs which are uniformly distributed, and one end part of each buffer spring is arranged on the bottom surface of the mounting groove.

Compared with the prior art, the utility model discloses improved current camshaft, through be provided with oil storage chamber and mounting groove on the axle sleeve, be provided with the capillary between oil storage chamber and the mounting groove, utilize the capillary can be with the automatic sponge strip that transmits in the mounting groove of lubricating oil in the oil storage chamber, thereby make the camshaft in the in-process of work, the automatic camshaft that the sponge strip can be automatic carries out the lubrication work, cooperate the setting of capillary and sponge strip simultaneously can realize automatic adding lubricating oil and can not appear lubricating oil too much phenomenon, when having made things convenient for the use, improved the utilization ratio of lubricating oil; simultaneously, through being provided with the fixed plate on the top surface at the sponge strip, be provided with the injection passageway that a plurality of slopes set up on the fixed plate for utilize the fixed plate to carry out certain extrusion to the sponge strip at camshaft work in-process, utilize this extrusion force can be with in the lubricating oil input injection passageway of storage in the sponge strip, and spray to the cam through injection passageway, thereby also can realize the lubricated work to the cam when realizing having the axle sleeve lubrication, improved lubricated effect. In addition, the lubricating strips with certain telescopic effect are arranged on the two side edges of the fixed plate, so that the position of the fixed plate can be fixed by the lubricating strips, the structural stability is improved, the shaft sleeve can be lubricated, and the lubricating effect is further improved; an oil filling hole is formed in one end of the oil storage cavity, a sealing plug is arranged on the oil filling hole, and the sealing plug is fixedly installed in the oil filling hole through mutual clamping of a clamping block and a clamping groove, so that the sealing effect of the interior of the oil storage cavity is guaranteed, the pollution, the oxidation and the like of the interior lubricating oil are avoided, and the utilization rate of the lubricating oil is improved; the arrangement of the pull ring on the outer side surface of the sealing plug facilitates the removal of the sealing plug when new lubricating oil is injected into the oil storage cavity, thereby facilitating the use; all be provided with the rib through the both sides edge at the sponge strip, utilize the rib can fix the position of sponge strip, further improved the stability of structure. Therefore, the utility model discloses not only can improve the utilization ratio of lubricating oil, still have convenient to use, lubricated effectual and the high advantage of structural stability.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a top view of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 1 at A;

fig. 4 is a partially enlarged view at B in fig. 1.

The labels in the figures are: the method comprises the following steps of 1-cam, 2-shaft sleeve, 3-shaft head, 4-oil storage cavity, 5-mounting groove, 6-communicating channel, 7-capillary tube, 8-sponge strip, 9-fixing plate, 10-spraying channel, 11-lubricating strip, 12-oil filling hole, 13-sealing plug, 14-pull ring, 15-clamping block, 16-clamping groove, 17-reinforcing frame and 18-buffer spring.

Detailed Description

The following description is made with reference to the accompanying drawings and examples, but not to be construed as limiting the invention.

Examples are given. A brake camshaft capable of being automatically lubricated is formed as shown in figures 1 to 4 and comprises a cam 1, a shaft sleeve 2 and a shaft head 3, wherein an oil storage cavity 4 is formed in the middle of the shaft sleeve 2, and a plurality of annular and uniformly distributed mounting grooves 5 are formed in the surface of the shaft sleeve 2; a communicating channel 6 is arranged between the inner bottom surface of each mounting groove 5 and the side wall of the oil storage cavity 4, and a capillary tube 7 is arranged in each communicating channel 6; a sponge strip 8 is arranged in the mounting groove 5, and a fixing plate 9 is arranged on the top surface of the sponge strip 8; two spraying channels 10 which are symmetrically distributed and inclined are arranged in the fixing plate 9, one end part of each spraying channel 10 is arranged on the end surface of the fixing plate 9, and one end part of each spraying channel 10 is arranged on the bottom surface of the fixing plate 9.

A plurality of uniformly distributed lubricating strips 11 are arranged on two side edges of the fixed plate 9, and one end part of each lubricating strip 11 is arranged at the top end part of the inner side surface of the mounting groove 5; an oil filling hole 12 is formed in one end of the oil storage cavity 4, and a sealing plug 13 is mounted on the oil filling hole 12; a pull ring 14 is arranged on the outer side surface of the sealing plug 13, and a plurality of clamping blocks 15 which are uniformly distributed are arranged on the side wall of the sealing plug 13; a plurality of clamping grooves 16 which are uniformly distributed are formed in the inner side wall of the oil injection hole 12, and the clamping grooves 16 and the clamping blocks 15 are mutually clamped; reinforcing frames 17 are arranged on two sides of the sponge strip 8, a plurality of buffer springs 18 which are uniformly distributed are arranged on the bottom surface of each reinforcing frame 17, and one end part of each buffer spring 18 is arranged on the bottom surface of the mounting groove 5.

The working principle is as follows: when the cam 1, the shaft head 3 and the shaft sleeve 2 rotate, lubricating oil in the oil storage cavity 4 is conveyed to the sponge strip 8 through the capillary 7, and in the rotating process of the shaft sleeve 2, the lubricating oil in the sponge strip 8 moves to the surface of the shaft sleeve 2 under the action of centrifugal force, so that the lubricating work of the shaft sleeve 2 is finished; while fixed plate 9 is along with axle sleeve 2's rotation when moving the top of sponge strip 8, fixed plate 9 can produce an extrusion force between sponge strip 8 under the effect of self gravity, at this moment lubricating oil in the sponge strip 8 can extrude and enter into injection channel 10 with certain speed from sponge strip 8 under the effect of this extrusion force in, again because injection channel 10 is the slope form setting, thereby be the slope form when making lubricating oil jet out from injection channel's tip and spray, thereby can spray cam 1 or axle sleeve 2 again on the surface, further improved lubricated effect.

Claims

1. The utility model provides a brake camshaft that can self-lubricate, includes cam (1), axle sleeve (2) and spindle nose (3), its characterized in that: an oil storage cavity (4) is formed in the middle of the shaft sleeve (2), and a plurality of annular and uniformly distributed mounting grooves (5) are formed in the surface of the shaft sleeve (2); a communicating channel (6) is arranged between the inner bottom surface of each mounting groove (5) and the side wall of the oil storage cavity (4), and a capillary tube (7) is arranged in each communicating channel (6); a sponge strip (8) is arranged in the mounting groove (5), and a fixing plate (9) is arranged on the top surface of the sponge strip (8); two spraying channels (10) which are symmetrically distributed and are inclined are arranged in the fixed plate (9), one end part of each spraying channel (10) is arranged on the end surface of the fixed plate (9), and one end part of each spraying channel (10) is arranged on the bottom surface of the fixed plate (9).

2. A self-lubricating brake camshaft as claimed in claim 1, wherein: all be provided with a plurality of evenly distributed's lubricating strip (11) on the both sides limit of fixed plate (9), the top portion at the medial surface of mounting groove (5) is all installed to the one end of every lubricating strip (11).

3. A self-lubricating brake camshaft as claimed in claim 1, wherein: an oil filling hole (12) is formed in one end of the oil storage cavity (4), and a sealing plug (13) is mounted on the oil filling hole (12); a pull ring (14) is arranged on the outer side surface of the sealing plug (13), and a plurality of clamping blocks (15) which are uniformly distributed are arranged on the side wall of the sealing plug (13); a plurality of clamping grooves (16) which are uniformly distributed are formed in the inner side wall of the oil filling hole (12), and the clamping grooves (16) are mutually clamped with the clamping blocks (15).

4. A self-lubricatable brake camshaft according to any one of claims 1 to 3, wherein: reinforcing frames (17) are arranged on two side edges of the sponge strip (8), a plurality of buffer springs (18) which are uniformly distributed are arranged on the bottom surface of each reinforcing frame (17), and one end part of each buffer spring (18) is arranged on the bottom surface of the mounting groove (5).