CN217176242U

CN217176242U - Overhead rail pulley

Info

Publication number: CN217176242U
Application number: CN202220612422.4U
Authority: CN
Inventors: 李秋生; 李晓伟; 侍代军; 魏鹏冲; 卢飞; 蔡一宏
Original assignee: Yancheng Institute of Technology
Current assignee: Yancheng Institute of Technology
Priority date: 2022-03-21
Filing date: 2022-03-21
Publication date: 2022-08-12
Anticipated expiration: 2032-03-21

Abstract

The utility model relates to a hanger rail pulley, it includes the frame, the connecting block and the pulley of symmetry setting in the connecting block both sides at the frame middle part of setting open on the connecting block has the slot hole, are equipped with the plain noodles ball socket of indent in the below of slot hole, and the slot hole is equipped with the constant diameter with the plain noodles ball socket in the plain noodles ball socket, is equipped with spherical nut at spherical nut's middle part, corresponds the trompil in the bottom of plain noodles ball socket, the jib bolt from down up pass behind the trompil of plain noodles ball socket with the spherical nut spiro union. The utility model discloses restricted the removal of spherical nut horizontal rotation and all directions, kept rotation in the horizontal plane of frame and the rotation in the vertical plane, can realize around the hanger rail pulley, control the balanced effect of load of pulley, improved pulley life.

Description

Overhead rail pulley

Technical Field

The utility model relates to a hanger rail pulley.

Background

The hanger rail pulley is a pulley used for a rectangular suspension inner slide guide rail, and is commonly used for guiding a household suspension door to reduce friction resistance. Common hanger rail pulleys have four-wheel, eight-wheel, 12-wheel and other structural forms. Because the connection between the suspension bolt and the support frame is similar to rigid connection, and because of the processing error and the installation deformation of the guide rail, the pulleys are overloaded due to uneven stress, once the rated load of the pulley bearing is exceeded, a certain bearing is damaged prematurely to cause the pulley to lose efficiency, when one pulley loses function, the adjacent pulley can also lose efficacy rapidly due to the damage of the bearing, so that chain reaction is caused, and a plurality of pulleys at one side or one end of the suspension rail pulley lose efficacy. In this case, great inconvenience is brought to the user. If the hanger rail pulley with the same specification and structure is simply replaced, the problem can occur for a long time.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a hanger rail pulley is provided, realize the balanced effect of load of hanger rail pulley, improve pulley life.

The utility model adopts the technical proposal that:

the utility model provides a hanger rail pulley, it includes the frame, set up connecting block and the symmetry in the frame middle part and set up the pulley in the connecting block both sides, it has the slot hole to open on the connecting block, be equipped with the plain noodles ball socket of indent in the below of slot hole, slot hole upper portion and plain noodles ball socket constant diameter are equipped with spherical nut in the plain noodles ball socket, open threaded hole at spherical nut's middle part, correspond the trompil in the bottom of plain noodles ball socket, the jib bolt from down up pass behind the trompil of plain noodles ball socket with the spherical nut spiro union.

Furthermore, a long groove is arranged on the side wall of the long hole, and a steel pin matched with the long groove is arranged on the outer side wall of the spherical nut.

Further, the spherical nut is drum-shaped in shape.

Furthermore, a sealing cover cylinder is arranged in the long hole, the sealing cover cylinder is arranged above the spherical nut, and the bottom of the inner side of the sealing cover cylinder is provided with a smooth ball socket with a downward opening.

Furthermore, the sealing cover cylinder comprises a cylinder body and a sealing cover elongated slot which is arranged on the side wall of the lower part of the cylinder body and corresponds to the elongated slot, and a limiting block matched with the elongated slot is arranged on the outer side wall of the top of the cylinder body.

Furthermore, the side wall of the cylinder body is provided with an annular convex edge, and the side wall of the long hole is provided with a groove corresponding to the annular convex edge.

Furthermore, the machine frame is provided with symmetrical shaft holes at two sides of the connecting block, and the pulleys are arranged on the shaft holes.

Furthermore, a connecting plate is arranged at the lower end of the suspender bolt.

The utility model discloses an actively the effect does:

the ball socket at the lower part of the sealing cover and the ball socket in the frame jointly form a ball nut limiting bearing surface, the ball nut steel pin is arranged in the elongated slots of the upper ball socket and the lower ball socket, the ball nut limiting bearing surface and the ball nut form a ball pin kinematic pair, the horizontal rotation and the movement in each direction of the ball nut are limited, the rotation in the transverse plane and the rotation in the longitudinal plane of the frame are kept, the load balancing effect of the front pulley, the rear pulley, the left pulley and the right pulley of the hanger rail pulley can be realized, and the service life of the pulleys is prolonged; the upper part of the suspension screw is arranged in the spherical nut, the lower part of the suspension screw is fixedly connected with the connecting plate, and the relative height between the connecting plate and the hanger rail pulley can be adjusted according to actual requirements through the suspension screw and the spherical nut.

Drawings

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

FIG. 2 is a schematic view of the rack of the present invention;

FIG. 3 is a schematic top view of the frame of the present invention;

FIG. 4 is a schematic cross-sectional view of the connecting block of the present invention;

fig. 5 is a schematic structural view of the spherical nut of the present invention;

FIG. 6 is a schematic view of the structure of the cover sealing barrel of the present invention;

fig. 7 is a schematic cross-sectional view of the cover sealing cylinder of the present invention.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the objects of the present invention, the following detailed description of the embodiments, structures, features and effects according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.

Example 1

As shown in fig. 1 to 7, the present embodiment provides a hanger rail pulley, which includes a frame 1, a connecting block, a cover cylinder 2, a pulley 3, a hanger rod bolt 4, and a ball nut 6.

The connecting block sets up in the middle part of frame 1, and the both ends symmetry that just is located the connecting block in frame 1 is equipped with shaft hole 103, and pulley 3 installs on shaft hole 103.

The connecting block is provided with a long hole 104, an inwards concave smooth ball socket is arranged below the long hole 104, the long hole 104 and the smooth ball socket have the same diameter, and the side wall of the long hole 104 is provided with a long groove 105.

The cover cylinder 2 comprises a cylinder body 201 and a cover long groove 204 which is arranged on the side wall of the lower part of the cylinder body 201 and corresponds to the long groove 105, a limit pin 203 which is matched with the long groove 105 is arranged on the outer side wall of the top of the cylinder body 201, and a smooth ball socket with a downward opening is arranged at the bottom of the inner side of the cylinder body 201 and corresponds to the smooth ball socket below the long hole 104. A through hole with the diameter larger than the diameter of the thread of the spherical nut is arranged in the cylinder 201.

The ball nut 6 comprises a body 601, a threaded hole 602 opened at a central position of a longitudinal axis of the body 601, and a steel pin 603 provided on an outer side wall of the body 601. The overall shape of the body 601 is a drum.

The cover cylinder 2 is arranged in the long hole, the spherical nut 6 is arranged between the two smooth ball sockets, and the steel pin 603 is matched with the long groove 105 and the cover long groove 204 to realize limiting.

The suspender bolt 4 passes through the smooth ball socket on the connecting block from bottom to top and then is matched with the threaded hole 602 of the spherical nut 6.

Example 2

This embodiment is a further improvement of embodiment 1, in this embodiment, an annular convex edge 202 is provided on the side wall of the cylinder 201, and a corresponding groove 106 is provided on the side wall of the long hole 104.

Example 3

This embodiment is a further modification of embodiment 1, in which a connecting plate 5 is attached to a lower end position of a boom bolt 4.

During assembly, every two pulleys 3 form a pulley block, and the pulley blocks are arranged at the positions of shaft holes 103 at two ends of the rack 1; the spherical nut 6 is arranged in a ball socket in the middle of the frame, the cover cylinder 2 is arranged on the upper part of the spherical nut 6, an annular convex edge 202 on the upper part of the cover cylinder 2 is pressed in an annular groove on the upper part of a longitudinal long hole 104 of the frame, the spherical nut 6 can be prevented from falling off naturally, the ball socket on the lower part of the cover cylinder 2 and the ball socket in the frame jointly form a spherical nut limiting bearing surface, a steel pin 603 of the spherical nut 6 is arranged in a long groove of an upper ball socket and a lower ball socket, the spherical nut limiting bearing surface and the spherical nut 6 form a ball pin kinematic pair, horizontal rotation and movement in various directions of the spherical nut 6 are limited, rotation in a transverse plane and rotation in a longitudinal plane of the frame 1 are reserved, the load balancing effect of front and rear pulleys of the hanger rail and left and right pulleys can be realized, the overload failure of a single bearing caused by uneven loading is prevented, and the service life of the pulleys is prolonged; the upper part of the suspension screw rod 4 is arranged in the spherical nut, the lower part of the suspension screw rod 4 is fixedly connected with the connecting plate 5, and the relative height between the connecting plate 5 and the hanger rail pulley can be adjusted according to actual requirements through the suspension screw rod 4 and the spherical nut 6.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention.

Claims

1. The utility model provides a hanger rail pulley, its characterized in that it includes frame (1), the connecting block and the symmetry of setting at frame (1) middle part set up pulley (3) in the connecting block both sides, it has slot hole (104) to open on the connecting block, be equipped with the plain noodles ball socket of indent in the below of slot hole (104), slot hole (104) upper portion and plain noodles ball socket constant diameter, be equipped with ball nut (6) in the plain noodles ball socket, open threaded hole (602) at the middle part of ball nut (6), correspond the trompil in the bottom of plain noodles ball socket, jib bolt (4) are followed down and are up passed behind the trompil of plain noodles ball socket with ball nut (6) spiro union.

2. A hanger rail pulley according to claim 1 wherein the long slot (105) is provided on the side wall of the long hole (104) and the steel pin (603) adapted to the long slot is provided on the outer side wall of the ball nut (6).

3. A hanger rail pulley according to claim 1 in which the ball nut (6) is drum shaped in profile.

4. The hanger rail pulley according to claim 1, wherein a cover cylinder (2) is arranged in the long hole (104), the cover cylinder (2) is arranged at an upper position of the ball nut (6), and a smooth ball socket with a downward opening is arranged at the bottom of the inner side of the cover cylinder (2).

5. A hanger rail pulley according to claim 4, characterized in that the cover cylinder (2) comprises a cylinder body (201), a cover elongated slot (204) arranged on the lower side wall of the cylinder body (201) and corresponding to the elongated slot (105), and a limiting block (203) matched with the elongated slot (105) is arranged on the top outer side wall of the cylinder body (201).

6. A hanger rail pulley according to claim 5 in which the barrel (201) is provided with an annular lip (202) on its side wall and the slot (104) is provided with a corresponding groove (106) on its side wall.

7. A hanger rail pulley according to claim 1 in which symmetrical axle holes (103) are provided in the frame (1) and on either side of the connecting block, the pulley (3) being mounted in the axle holes (103).

8. A hanger rail pulley according to claim 1, characterized in that a connecting plate (5) is mounted at the lower end position of the hanger bolt (4).