阅读说明：本技术 一种含油轴承粉末冶金装置 (Powder metallurgy device for oil-retaining bearing ) 是由 丁剑浩 于 2021-11-15 设计创作，主要内容包括：本发明涉及含油轴承技术领域,提供一种含油轴承粉末冶金装置,包括机架,机架上安装有粉盒和主动轮；粉盒前端设有切板,切板切削端面与切板运行方向构成锐角或钝角；主动轮偏心转动,并通过传动组件驱动切板水平往复运动,实现含油轴承脱离模具；主动轮与传动组件均安装在机架侧板上,并贴近机架侧板；含油轴承脱离模具时,从切板切削端头部运行至尾部。切板切削端的设置,使含油轴承脱离模具时,从切板切削端头部滚动至尾部,从而减小了切板对含油轴承造成的冲力,降低了伤害,提高了含油轴承的质量；主动轮与传动组件的位置设置,不仅结构简单,而且结构紧凑,占用空间小,成本低。(The invention relates to the technical field of oil-retaining bearings, and provides an oil-retaining bearing powder metallurgy device which comprises a rack, wherein a powder box and a driving wheel are arranged on the rack; the front end of the powder box is provided with a cutting plate, and the cutting end surface of the cutting plate and the running direction of the cutting plate form an acute angle or an obtuse angle; the driving wheel eccentrically rotates and drives the cutting plate to horizontally reciprocate through the transmission assembly, so that the oil-retaining bearing is separated from the die; the driving wheel and the transmission assembly are both arranged on the side plate of the frame and are close to the side plate of the frame; when the oil-retaining bearing is separated from the die, the oil-retaining bearing runs from the cutting end part of the cutting plate to the tail part. The arrangement of the cutting end of the cutting plate ensures that the oil-retaining bearing rolls from the cutting end part to the tail part of the cutting plate when being separated from the die, thereby reducing the impulsive force of the cutting plate on the oil-retaining bearing, reducing the damage and improving the quality of the oil-retaining bearing; the driving wheel and the transmission assembly are arranged at positions, so that the structure is simple, the structure is compact, the occupied space is small, and the cost is low.)

1. The utility model provides an oiliness bearing powder metallurgy device which characterized in that: the powder box comprises a rack (6), wherein a powder box (1) and a driving wheel (3) are installed on the rack (6);

the front end of the powder box (1) is provided with a cutting plate (2), and the cutting end face of the cutting plate (2) and the running direction of the cutting plate (2) form an acute angle or an obtuse angle;

the driving wheel (3) eccentrically rotates and drives the cutting plate (2) to horizontally reciprocate through the transmission assembly, so that the oil-retaining bearing is separated from the die;

the driving wheel (3) and the transmission assembly are both arranged on a side plate of the rack (6) and are close to the side plate of the rack (6);

when the oil-retaining bearing is separated from the die, the oil-retaining bearing runs from the cutting head part to the tail part of the cutting plate (2).

2. The powder metallurgy device for an oil-impregnated bearing according to claim 1, wherein: powder box (1) both sides all are equipped with drive plate (4), drive plate (4) one end with powder box (1) is articulated, and the other end is connected through linking axle (5), link axle (5) are passed through drive assembly with action wheel (3) are connected, realize powder box (1) horizontal reciprocating motion.

3. The oil-impregnated bearing powder metallurgy apparatus according to claim 2, wherein the transmission assembly comprises:

the main shaft (7) is rotationally connected with the frame (6);

the first connecting rod (8) is fixedly connected with one end of the main shaft (7);

one end of the second connecting rod (9) is fixedly connected with the first connecting rod (8), and the other end of the second connecting rod is rotatably connected with the connecting shaft (5);

the sleeve (10) is sleeved on the main shaft (7) and fixedly connected with the main shaft (7), and the sleeve (10) is connected with the rack (6) through a spring (18);

the third connecting rod (11) is fixedly connected with the sleeve (10);

the rotating shaft (12) is rotatably connected with the rack (6), one end of the rotating shaft is provided with a bearing (13) tangent to the driving wheel (3), and the other end of the rotating shaft is fixedly connected with one end of a connecting plate (14); the other end of the connecting plate (14) is fixedly connected with a fourth connecting rod (15);

and the two ends of the fifth connecting rod (16) are respectively hinged with the fourth connecting rod (15) and the third connecting rod (11).

4. The powder metallurgy device for an oil-impregnated bearing according to claim 3, wherein: a connecting plate (17) is connected to the sleeve (10), a first connecting rod (21) is arranged on the connecting plate (17), a second connecting rod (22) is connected to the rack (6), and the first connecting rod (21) is connected with the second connecting rod (22) through the spring (18); the third connecting rod (11) is installed on the connecting plate (17).

5. The powder metallurgy device for an oil-impregnated bearing according to claim 3, wherein: one end of the second connecting rod (9) is inserted into the upper end of the first connecting rod (8) and is fixed through a locking screw; the other end of the second connecting rod (9) is provided with a U-shaped groove for clamping the connecting shaft (5).

6. The powder metallurgy device for an oil-impregnated bearing according to claim 2, wherein: the middle of the driving plate (4) is hinged with a support (19), the rack (6) is hinged with an air cylinder (20), and a piston rod of the air cylinder (20) is fixedly connected with the support (19).

Technical Field

The invention relates to the technical field of oil-retaining bearings, in particular to a powder metallurgy device for an oil-retaining bearing.

Background

Porous bearings (Porous bearings) are oil-impregnated bearings which are made of metal powder as the main raw material and are sintered bodies produced by powder metallurgy, are inherently Porous and have technical advantages such as the number, size, shape and distribution of pores being relatively freely adjustable during the production process.

The oil-retaining bearing has the characteristics of low cost, vibration absorption, low noise, no need of adding lubricating oil and the like in a longer working time, and is particularly suitable for a working environment which is not easy to lubricate or is not allowed to be polluted by oil. Porosity is an important parameter for oil-impregnated bearings. The oil-containing bearing working under high speed and light load requires a large oil content, and the porosity is preferably high; the oil-retaining bearing working at low speed and large load requires high strength and is suitable for low porosity.

When the oil-retaining bearing is used for powder metallurgy, the forming hole needs to be filled with powder, the forming rod is pressed downwards to enable the oil-retaining bearing to be clamped and formed between the forming rod and the die, then the lifting mechanism pushes the oil-retaining bearing upwards out of the working table, and finally the oil-retaining bearing is separated from the die through horizontal movement of the cutting plate. The end face of the traditional cutting plate is over against the oil-retaining bearing (the end face of the cutting plate is perpendicular to the moving direction of the cutting plate), the cutting plate has large damage to the oil-retaining bearing, and the outer side face of the oil-retaining bearing is easy to deform, so that the quality of the oil-retaining bearing is influenced. And traditional cutting plate drive arrangement is through the cylinder drive, or through motor and ball screw pair drive, and not only occupation space is great, and is with high costs moreover.

Disclosure of Invention

In order to solve the technical problem in the background technology, the invention discloses an oil-retaining bearing powder metallurgy device.

The invention provides an oil-retaining bearing powder metallurgy device which comprises a rack, wherein a powder box and a driving wheel are installed on the rack;

the front end of the powder box is provided with a cutting plate, and the cutting end surface of the cutting plate and the running direction of the cutting plate form an acute angle or an obtuse angle;

the driving wheel eccentrically rotates and drives the cutting plate to horizontally reciprocate through the transmission assembly, so that the oil-containing bearing is separated from the die;

the driving wheel and the transmission assembly are both arranged on the side plate of the rack and are close to the side plate of the rack;

and when the oil-retaining bearing is separated from the die, the oil-retaining bearing runs from the head part to the tail part of the cutting end of the cutting plate.

The arrangement of the cutting end of the cutting plate ensures that the oil-retaining bearing rolls from the cutting end part to the tail part of the cutting plate when being separated from the die, thereby reducing the impulsive force of the cutting plate on the oil-retaining bearing, reducing the damage and improving the quality of the oil-retaining bearing; the driving wheel and the transmission assembly are arranged at positions, so that the structure is simple, the structure is compact, the occupied space is small, and the cost is low.

For explaining the concrete structure of powder box atress, in this scheme, the powder box both sides all are equipped with the drive plate, drive plate one end with the powder box is articulated, and the other end is through linking hub connection, link the axle through drive assembly with the action wheel is connected, realizes powder box horizontal reciprocating motion.

To explain the concrete structure of the transmission assembly, in this scheme, the transmission assembly includes:

the main shaft is rotationally connected with the rack;

the first connecting rod is fixedly connected with one end of the main shaft;

one end of the second connecting rod is fixedly connected with the first connecting rod, and the other end of the second connecting rod is rotatably connected with the connecting shaft;

the sleeve is sleeved on the main shaft and fixedly connected with the main shaft, and the sleeve is connected with the rack through a spring;

the third connecting rod is fixedly connected with the sleeve;

the rotating shaft is rotatably connected with the rack, one end of the rotating shaft is provided with a bearing tangent to the driving wheel, and the other end of the rotating shaft is fixedly connected with one end of the connecting plate; the other end of the connecting plate is fixedly connected with a fourth connecting rod;

and two ends of the fifth connecting rod are respectively hinged with the fourth connecting rod and the third connecting rod.

When the driving wheel eccentrically rotates, the bearing is pushed to do arc motion, so that the rotating shaft is driven to rotate; the connecting plate rotates along with the rotating shaft, the other end of the connecting plate descends and drives the fourth connecting rod, the fifth connecting rod and the third connecting rod to descend, the third connecting rod drives the sleeve and the main shaft to rotate, the main shaft drives the first connecting rod to rotate, the opening end of the first connecting rod moves towards the outer side of the rack, so that the second connecting rod is driven to move towards the outer side, the powder box moves towards the outer side along with the first connecting rod, and the spring is in a stretching state at the moment; when the driving wheel eccentrically rotates to the other side, the spring resets and drives the powder box to move to the oil-retaining bearing, so that the cutting plate pushes the oil-retaining bearing.

In order to explain the specific installation structure of the spring, in the scheme, the sleeve is connected with a connecting plate, a first connecting rod is arranged on the connecting plate, a second connecting rod is connected on the rack, and the first connecting rod is connected with the second connecting rod through the spring; the third connecting rod is installed on the connecting plate.

In order to facilitate the disassembly and assembly of the first connecting rod and the second connecting rod, in the scheme, one end of the second connecting rod is inserted into the upper end of the first connecting rod and is tightly pressed and fixed through a locking screw; the other end of the second connecting rod is provided with a U-shaped groove for clamping the connecting shaft.

Because the powder box when removing, the condition of perk takes place easily, so further improves and solves this problem, it is specific, the drive plate middle part articulates there is the support, it has the cylinder to articulate in the frame, the cylinder piston rod with support fixed connection.

Drawings

The invention is further illustrated with reference to the following figures and examples:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view at A in FIG. 1;

FIG. 3 is a schematic view of another aspect of the present invention;

FIG. 4 is an enlarged view at B in FIG. 3;

FIG. 5 is a left side view of the present invention;

FIG. 6 is a front view of the present invention;

in the figure: 1. Powder box; 2. cutting a plate; 3. a driving wheel; 4. a drive plate; 5. a connecting shaft; 6. a frame; 7. a main shaft; 8. a first link; 9. a second link; 10. a sleeve; 11. a third link; 12. a rotating shaft; 13. a bearing; 14. connecting plates; 15. a fourth link; 16. a fifth link; 17. connecting a plate; 18. a spring; 19. a support; 20. a cylinder; 21. a first connecting rod; 22. a second connecting rod.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.

As shown in fig. 1, 3 and 6, the invention relates to an oil-retaining bearing powder metallurgy device, which comprises a frame 6, wherein a working platform is arranged on the frame 6, a forming rod is arranged above the working platform, and a forming hole positioned right below the forming rod is arranged on the working platform.

The working platform is provided with a powder box 1, the front end of the powder box 1 is provided with a cutting plate 2, and the cutting end face of the cutting plate 2 and the running direction of the cutting plate 2 form an acute angle or an obtuse angle.

The both sides of powder box 1 all are equipped with drive plate 4, and 4 one ends of drive plate are articulated with powder box 1, and the other end passes through connecting axle 5 to be connected.

As shown in fig. 2 and 4, the side plate of the frame 6 is provided with a main shaft 7 and a rotating shaft 12 which are rotatably connected. The main shaft 7 is parallel to the end face of the frame 6, is arranged on the frame 6 through two mounting frames, and rotates through a bearing on the mounting frames. The rotating shaft 12 is perpendicular to the end face of the rack 6, a bearing is arranged at the inner end of the rotating shaft 12, and the bearing is sleeved with a mounting seat on the end face of the rack 6, so that the rotating shaft 12 rotates.

The outside welding of pivot 12 inner end has the flange of upwards arranging, and the flange outside is installed the nose bar, installs deep groove ball bearing 13 on the nose bar. The rack 6 is also provided with a driving wheel 3 tangent to the deep groove ball bearing 13, as shown in fig. 5, the driving wheel 3 is connected with a driving shaft in an eccentric mode, and the driving shaft is driven to rotate by a motor. The outer end of the rotating shaft 12 is vertically provided with a connecting plate 14, one end of the connecting plate 14 is fixedly connected with the rotating shaft 12, and the other end of the connecting plate is vertically and fixedly connected with a fourth connecting rod 15.

One end of the main shaft 7 is fixedly connected with a first connecting rod 8, the lower end of the first connecting rod 8 is sleeved with the main shaft 7 and is tightly fixed through a bolt. The upper end of the first connecting rod 8 is inserted with a second connecting rod 9 and is tightly fixed by a locking screw. One end of the second connecting rod 9 close to the powder box 1 is provided with a U-shaped groove for clamping the connecting shaft 5. So set up, be convenient for first connecting rod 8 and the dismouting of second connecting rod 9.

The middle position of the main shaft 7 is fixedly sleeved with a sleeve 10, the sleeve 10 is connected with a connecting plate 17, the connecting plate 17 is provided with a first connecting rod 21, the rack 6 is connected with a second connecting rod 22 positioned above the first connecting rod 21, and the first connecting rod 21 and the second connecting rod 22 are connected through a spring 18. The connecting plate 17 is provided with a third connecting rod 11, and the third connecting rod 11 is horizontally arranged and is vertical to the connecting plate 17.

A fifth connecting rod 16 is connected between the third connecting rod 11 and the fourth connecting rod 15, and two ends of the fifth connecting rod 16 are respectively hinged with the third connecting rod 11 and the fourth connecting rod 15.

The middle part of the driving plate 4 is hinged with a bracket 19, and the bracket 19 is in a U shape with a downward opening. The rack 6 is provided with a mounting plate, the lower end of the mounting plate is provided with an air cylinder 20, the bottom of the air cylinder 20 is hinged with the lower end of the mounting plate, and a piston rod of the air cylinder 20 is fixedly connected with the bottom of the support 19. The air cylinder 20 applies force to the powder box 1 through the support 19, so that the situation that the powder box 1 tilts when moving is avoided.

When the driving wheel 3 eccentrically rotates, the deep groove ball bearing 13 is pushed to do arc motion, so that the rotating shaft 12 is driven to rotate; the connecting plate 14 rotates along with the rotating shaft 12, the other end of the connecting plate 14 descends and drives the fourth connecting rod 15, the fifth connecting rod 16 and the third connecting rod 11 to descend, the third connecting rod 11 drives the sleeve 10 and the main shaft 7 to rotate, the main shaft 7 drives the first connecting rod 8 to rotate, the opening and closing end of the first connecting rod 8 moves towards the outer side of the rack 6, so that the second connecting rod 9 is driven to move towards the outer side, the powder box 1 moves towards the outer side, and the spring 18 is in a stretching state at the moment; when the driving wheel 3 eccentrically rotates to the other side, the spring 18 resets and drives the powder box 1 to move towards the oil-containing bearing, so that the cutting plate 2 pushes the oil-containing bearing.

Due to the arrangement of the cutting end of the cutting plate 2, when the oil-retaining bearing is separated from the die, the head of the cutting end of the cutting plate 2 rolls to the tail, so that the impulsive force of the cutting plate 2 on the oil-retaining bearing is reduced, the damage is reduced, and the quality of the oil-retaining bearing is improved.

The driving wheel 3 and the driving wheel 3 drive the cutting plate 2 to move, and the transmission assembly is close to the side plate of the rack 6, so that the structure is simple, the structure is compact, the occupied space is small, and the cost is low.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.