CN214248216U

CN214248216U - Belt pulley assembly of machine tool

Info

Publication number: CN214248216U
Application number: CN202023341808.6U
Authority: CN
Inventors: 夏建兵
Original assignee: Zhejiang Shengong Machine Co ltd
Current assignee: Zhejiang Shengong Machine Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-09-21
Anticipated expiration: 2030-12-31

Abstract

The utility model provides a lathe pulley subassembly belongs to mechanical technical field. It has solved the inconvenient problem of current belt pulley equipment. The belt pulley component of the machine tool comprises an annular wheel body and a shaft body rotationally arranged in the wheel body through two first bearings, wherein the left end and the right end of the shaft body both extend out of the wheel body, the left end of the shaft body is provided with a spline housing which is fixedly connected with the wheel body, the right end of the shaft body is sleeved with a pressing housing which is rotationally connected with the shaft body, the middle part of the shaft body is sleeved with a pressing pipe, two ends of the pressing pipe are respectively tightly pressed on inner rings of the two first bearings, the right end of the spline housing is integrally formed with a pressing ring which is arranged in the wheel body, the left end of the pressing housing extends into the wheel body, the two first bearings are respectively arranged between the pressing ring and the pressing housing, and outer rings of the two first bearings are respectively tightly pressed on the pressing ring and the pressing housing; the outer wall of the left end of the pressing sleeve is provided with a first conical surface with the diameter gradually increasing from left to right, the inner wall of the wheel body is provided with a second conical surface matched with the first conical surface, the first conical surface is attached to the second conical surface, and the right end of the pressing sleeve is formed with a flange. The belt pulley assembly of the machine tool is convenient to assemble.

Description

Belt pulley assembly of machine tool

Technical Field

The utility model belongs to the technical field of machinery, a lathe, especially a lathe pulley subassembly are related to.

Background

Machine tools are machines for manufacturing machines, also called machine tools or machine tools, which are conventionally referred to as machine tools for short.

The belt pulley is an important component of the machine tool and is used for connecting a belt to transmit power of a motor. The existing belt pulley is like an unloading belt pulley (application number: 201010134978.9) of a wire drawing machine disclosed in Chinese patent library, an unloading shaft seat is sleeved at one end of a main shaft, a spline cover is arranged at the end parts of the unloading shaft seat and the main shaft, a bearing spacer ring and an oil seal are respectively sleeved outside the unloading shaft seat, deep groove ball bearings are respectively arranged at two ends of the bearing spacer ring, the belt pulley is arranged on the deep groove ball bearings, a lower supporting plate is arranged on the oil seal, the lower supporting plate is fixed with the belt pulley by a second screw, and the spline cover is fixed with the belt pulley by a first screw; a first cylindrical roller bearing and a second cylindrical roller bearing are arranged at two ends of the inner side of the unloading shaft seat around the main shaft, a supporting ring is sleeved on the periphery of the second cylindrical roller bearing around the main shaft, a pressing plate is sleeved on the supporting ring, and the pressing plate is fixed with the unloading shaft seat by a fourth screw; a round-head flat key is arranged in a key groove at the other end of the main shaft, a belt wheel is sleeved at the other end of the main shaft, and a shaft end pressing plate is fixed on the main shaft by a fifth screw.

The belt pulley has more parts and is not favorable for assembly.

SUMMERY OF THE UTILITY MODEL

The utility model aims at having the above-mentioned problem to current technique, provided a lathe pulley subassembly convenient to equipment.

The purpose of the utility model can be realized by the following technical proposal: a machine tool belt pulley component comprises an annular wheel body and an axle body rotationally arranged in the wheel body through two first bearings, wherein the left end and the right end of the axle body both extend out of the wheel body, the left end of the axle body is sleeved with a spline sleeve in spline fit with the axle body, the spline sleeve is fixedly connected with the wheel body, the right end of the axle body is externally sleeved with a pressing sleeve, the pressing sleeve is rotationally connected with the axle body through a second bearing, the middle part of the axle body is sleeved with a pressing pipe, the pressing pipe is arranged between the two first bearings, two ends of the pressing pipe are respectively tightly pressed on inner rings of the two first bearings, the machine tool belt pulley component is characterized in that the right end of the spline sleeve is integrally formed with a pressing ring coaxial with the axle body, the pressing ring is positioned in the wheel body, the left end of the pressing sleeve extends into the wheel body, the two first bearings are respectively positioned between the pressing ring and the pressing sleeve, and outer rings of the two first bearings are respectively tightly pressed on the pressing ring and the pressing sleeve; the outer wall of the left end of the pressing sleeve is provided with a first conical surface with the diameter gradually increasing from left to right, the inner wall of the wheel body is provided with a second conical surface matched with the first conical surface, and the first conical surface and the second conical surface are attached to form sealing; the right end of the pressing sleeve is integrally formed with a flange.

When the wheel body is used, the pressing sleeve is fixed through the flange, and the shaft body rotates to drive the wheel body to rotate through the spline sleeve.

The pressure cover both utilizes the second bearing to support the axis body, seals wheel body right port and leads to the motion of wheel body through conical surface one again and the cooperation of conical surface two simultaneously, promptly in this application, the pressure cover possesses the effect of an thing three-way to effectively reduce spare part and drop into, improve the equipment convenience through reducing the equipment process.

In foretell lathe pulley assembly, be equipped with the oilhole that possesses two orifices in the foretell wheel body, two orifices of oilhole are oil inlet and oil-out respectively, and the axis of oil inlet is parallel with the axis body axis, and the oil inlet is located the wheel body right-hand member face, and the oil-out can be dismantled on conical surface two and be fixed with the shutoff piece that is used for the shutoff oil inlet on the wheel body. When the lubricating oil lubrication device is used, lubricating oil is injected into the oil hole through the oil inlet so as to lubricate the contact part of the first conical surface and the second conical surface, so that friction between the first conical surface and the second conical surface can be reduced, the running stability of the wheel body is improved, and the sealing effect formed between the first conical surface and the second conical surface can be enhanced.

In the above-mentioned belt pulley assembly for a machine tool, the plugging member is a screw threadedly connected in the oil hole, and the head of the screw is located outside the pulley body.

As another scheme, in the above-mentioned belt pulley assembly for a machine tool, the blocking piece is a rubber plug inserted into the oil hole, the side wall of the rubber plug is in close contact with the wall of the oil hole to form a seal, and the outer end of the rubber plug extends out of the oil hole.

In foretell lathe pulley assembly, the left end integrated into one piece of spline housing has the pipe portion, and the pipe portion cover is outside the shaft body, and the axis body external screw joint has the preforming, and the preforming sticiss on pipe portion left end face to further strengthen spacing spline housing on the axial, improve the stability of wheel body operation.

In the above-mentioned lathe pulley assembly, the second bearing has two and distributes along the axis body axial, be equipped with the stay tube between two second bearings, the stay tube cover is outside the axle body, and the stay tube both ends respectively sticiss on the inner circle of two second bearings, press the cover left end inner wall on integrated into one piece have annular convex shoulder, press cover right-hand member internal fixation has the spacing ring, the spacing ring cover is outside the axle body, two second bearings all are located between annular convex shoulder and the spacing ring, and the outer lane of two second bearings sticiss respectively on annular convex shoulder and the spacing ring to strengthen the supporting effect of pressing the cover to the axle body.

Compared with the prior art, the belt pulley assembly of the machine tool has the following advantages:

1. the pressure cover both utilizes the second bearing to support the axis body, seals wheel body right port and leads to the motion of wheel body through conical surface one again and the cooperation of conical surface two simultaneously, promptly in this application, the pressure cover possesses the effect of an thing three-way to effectively reduce spare part and drop into, improve the equipment convenience through reducing the equipment process.

2. Lubricating oil is injected into the oil hole through the oil inlet so as to lubricate the contact position of the first conical surface and the second conical surface, so that the friction between the first conical surface and the second conical surface can be reduced, the running stability of the wheel body is improved, and the sealing effect formed between the first conical surface and the second conical surface can be enhanced.

Drawings

Fig. 1 is a schematic structural view of a belt pulley assembly of a machine tool.

Fig. 2 is an enlarged schematic view of a structure at a in fig. 1.

In the figure, 1, a wheel body; 1a, a second conical surface; 1b, oil holes; 1b1, oil inlet; 1b2, oil outlet; 2. a shaft body; 3. a first bearing; 4. a spline housing; 4a, a tube portion; 4b, pressing a ring; 5. tabletting; 6. pressing the sleeve; 6a, an annular shoulder; 6b, a first conical surface; 6c, a flange; 7. a second bearing; 8. supporting a tube; 9. a limiting ring; 10. pressing a pipe; 11. a closure.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1, the belt pulley assembly of the machine tool comprises an annular wheel body 1 and a shaft body 2 arranged in the wheel body 1, wherein the shaft body 2 and the wheel body 1 are coaxially arranged, and the shaft body 2 is rotatably connected with the wheel body 1 through a first bearing 3. In this embodiment, first bearing 3 has two and follows 2 axial distributions of axis body, and the inner circle and the outer lane of first bearing 3 all link firmly with axis body 2 and wheel body 1 respectively through interference fit mode.

Specifically, the left end and the right end of the shaft body 2 extend out of the wheel body 1.

Wherein, the left end overcoat of axis body 2 has spline housing 4, and axis body 2 and spline housing 4 adopt spline fit to be connected. Spline housing 4 links firmly with wheel body 1, and in this embodiment, 4 right-hand members of spline housing face sticiss on 1 left end face of wheel body, and spline housing 4 links firmly with wheel body 1 through many bolts. Further, a tube portion 4a is integrally formed at the left end of the spline housing 4, the tube portion 4a is sleeved outside the shaft body 2, a pressing piece 5 is externally screwed on the shaft body 2, and the pressing piece 5 is tightly pressed on the left end face of the tube portion 4a so as to further strengthen the axial limiting of the spline housing 4 and improve the running stability of the wheel body 1.

The right end of the shaft body 2 is externally sleeved with a pressing sleeve 6, and the pressing sleeve 6 is rotatably connected with the shaft body 2 through a second bearing 7. Specifically, the second bearing 7 has two and along the axial distribution of axis body 2, and preferred second bearing 7's inner circle and outer lane all link firmly with axis body 2 and pressure cover 6 respectively through interference fit mode. Be equipped with stay tube 8 between two second bearings 7, stay tube 8 covers outside the axis body 2, and the stay tube 8 both ends sticiss respectively on the inner circle of two second bearings 7, press 6 left end inner walls of cover integrated into one piece to have annular convex shoulder 6a, and annular convex shoulder 6a and axis body 2 are coaxial, press 6 right-hand member internal fixation of cover to have spacing ring 9, spacing ring 9 covers outside the axis body 2, two second bearings 7 all are located between annular convex shoulder 6a and the spacing ring 9, and the outer lane of two second bearings 7 sticiss respectively on annular convex shoulder 6a and spacing ring 9, with the supporting effect of reinforcing pressure cover 6 to the axis body 2.

As shown in fig. 1 and 2, the shaft body 2 is sleeved with a pressing pipe 10 at the middle part, the pressing pipe 10 is between the two first bearings 3, and both ends of the pressing pipe 10 are respectively pressed on the inner rings of the two first bearings 3. The spline housing 4 right-hand member integrated into one piece has the clamping ring 4b coaxial with axis body 2, and clamping ring 4b is located wheel body 1. The left end of the pressing sleeve 6 extends into the wheel body 1, the two first bearings 3 are both positioned between the pressing ring 4b and the pressing sleeve 6, and the outer rings of the two first bearings 3 are respectively tightly pressed on the pressing ring 4b and the pressing sleeve 6. A first conical surface 6b with the diameter gradually increased from left to right is arranged on the outer wall of the left end of the pressing sleeve 6, a second conical surface 1a matched with the first conical surface 6b is arranged on the inner wall of the wheel body 1, and the first conical surface 6b is attached to the second conical surface 1a to form sealing; the right end of the pressing sleeve 6 is integrally formed with a flange 6 c. During the use, it is fixed that pressure cover 6 passes through flange 6c, and axis body 2 rotates in order to drive wheel body 1 through spline housing 4 and rotate.

Further, an oil hole 1b having two orifices is provided in the wheel body 1, and the two orifices of the oil hole 1b are an oil inlet 1b1 and an oil outlet 1b 2. The axis of the oil inlet 1b1 is parallel to the axis of the shaft body 2, the oil inlet 1b1 is located on the right end face of the wheel body 1, the oil outlet 1b2 is located on the second conical surface 1a, and the wheel body 1 is detachably fixed with a plugging piece 11 for plugging the oil inlet 1b 1. When the lubricating oil lubrication device is used, lubricating oil is injected into the oil hole 1b through the oil inlet 1b1 to lubricate the contact part of the first conical surface 6b and the second conical surface 1a, so that friction between the first conical surface 6b and the second conical surface 1a can be reduced, the running stability of the wheel body 1 is improved, and the sealing effect formed between the first conical surface 6b and the second conical surface 1a can be enhanced. In this embodiment, the blocking member 11 is a screw screwed into the oil hole 1b, and the head of the screw is located outside the wheel body 1. Naturally, the blocking piece 11 may adopt a scheme that the blocking piece 11 is a rubber plug inserted into the oil hole 1b, the side wall of the rubber plug is in close contact with the hole wall of the oil hole 1b to form a seal, and the outer end of the rubber plug extends out of the oil hole 1 b.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. A belt pulley component of a machine tool comprises an annular wheel body (1) and a shaft body (2) which is rotatably arranged in the wheel body (1) through two first bearings (3), wherein the left end and the right end of the shaft body (2) both extend out of the wheel body (1), the left end of the shaft body (2) is sleeved with a spline sleeve (4) in spline fit with the shaft body, the spline sleeve (4) is fixedly connected with the wheel body (1), the right end of the shaft body (2) is sleeved with a pressure sleeve (6), the pressure sleeve (6) is rotatably connected with the shaft body (2) through a second bearing (7), the middle part of the shaft body (2) is sleeved with a pressure pipe (10), the pressure pipe (10) is arranged between the two first bearings (3), and the two ends of the pressure pipe (10) are respectively tightly pressed on inner rings of the two first bearings (3), the belt pulley component is characterized in that the spline sleeve (4) is integrally formed with a pressure ring (4b) which is coaxial with the shaft body (2), and the right end of the pressure ring (4b) is positioned in the wheel body (1), the left end of the pressing sleeve (6) extends into the wheel body (1), the two first bearings (3) are located between the pressing ring (4b) and the pressing sleeve (6), and outer rings of the two first bearings (3) are tightly pressed on the pressing ring (4b) and the pressing sleeve (6) respectively; a first conical surface (6b) with the diameter gradually increased from left to right is arranged on the outer wall of the left end of the pressing sleeve (6), a second conical surface (1a) matched with the first conical surface (6b) is arranged on the inner wall of the wheel body (1), and the first conical surface (6b) is attached to the second conical surface (1a) to form sealing; the right end of the pressing sleeve (6) is integrally formed with a flange (6 c).

2. The machine tool pulley assembly according to claim 1, wherein the wheel body (1) is provided with an oil hole (1b) having two openings, the two openings of the oil hole (1b) are an oil inlet (1b1) and an oil outlet (1b2), the axis of the oil inlet (1b1) is parallel to the axis of the shaft body (2), the oil inlet (1b1) is located on the right end surface of the wheel body (1), the oil outlet (1b2) is located on the conical surface two (1a), and a blocking piece (11) for blocking the oil inlet (1b1) is detachably fixed on the wheel body (1).

3. A machine tool pulley assembly according to claim 2, characterized in that the closure member (11) is a screw threaded in the oil bore (1b) and the head of the screw is located outside the wheel body (1).

4. The pulley assembly for machine tools according to claim 2, characterized in that the blocking piece (11) is a rubber plug inserted into the oil hole (1b), the side wall of the rubber plug is in close contact with the wall of the oil hole (1b) to form a seal, and the outer end of the rubber plug extends out of the oil hole (1 b).

5. The machine tool pulley assembly according to claim 1, wherein the spline housing (4) is integrally formed with a tube portion (4a) at the left end thereof, the tube portion (4a) is fitted over the shaft body (2), the shaft body (2) is externally screwed with the pressing piece (5), and the pressing piece (5) is pressed against the left end surface of the tube portion (4 a).

6. The machine tool pulley assembly according to claim 1, characterized in that two second bearings (7) are axially distributed along the shaft body (2), a supporting tube (8) is arranged between the two second bearings (7), the supporting tube (8) is sleeved outside the shaft body (2), two ends of the supporting tube (8) are respectively pressed on the inner rings of the two second bearings (7), an annular shoulder (6a) is integrally formed on the inner wall of the left end of the pressing sleeve (6), a limiting ring (9) is fixed in the right end of the pressing sleeve (6), the limiting ring (9) is sleeved outside the shaft body (2), the two second bearings (7) are both positioned between the annular shoulder (6a) and the limiting ring (9), and the outer rings of the two second bearings (7) are respectively pressed on the annular shoulder (6a) and the limiting ring (9).