CN218231648U

CN218231648U - Pulley fixer with speed regulation structure

Info

Publication number: CN218231648U
Application number: CN202121774175.XU
Authority: CN
Inventors: 潘垣安; 蒋文娟
Original assignee: Qicheng Metal Products Jiangsu Co ltd
Current assignee: Qicheng Metal Products Jiangsu Co ltd
Priority date: 2021-08-02
Filing date: 2021-08-02
Publication date: 2023-01-06
Anticipated expiration: 2031-08-02

Abstract

The utility model discloses a pulley fixer with speed governing structure, including the pulley, the axle center department of pulley is connected with the fixed axle, seal bearing is installed at the left and right ends of fixed axle, seal bearing's outer lane is connected with L type seat, the horizontal end top of L type seat is connected with the dovetail strip, the top center of dovetail strip is seted up threaded hole, the top of L type seat is equipped with the assembly piece, the bottom of assembly piece is seted up the dovetail, the dovetail strip is pegged graft in the dovetail, the upper end spiro union of dovetail has fastening bolt, the fastening bolt lower extreme stretches into the screw hole, be connected with the speed governing shell between two assembly pieces; the utility model has the advantages of reasonable design, be convenient for install fixedly L type seat for the restriction can be adjusted to pulley pivoted speed to assembly piece and speed governing shell loading and unloading convenience, effectively avoids the heavy object to move down the collision damage that speed leads to at the excessive speed, convenient and practical.

Description

Pulley fixer with speed regulation structure

Technical Field

The utility model relates to a pulley technical field especially relates to a pulley fixer with speed governing structure.

Background

The pulley is a simple machine used to lift the weight. In mechanics, a typical pulley is a circular wheel that can rotate about a central axis. The round wheel has a groove on its circumference, and the rope is wound in the groove, and either end of the rope is pulled by force, so that the friction between the rope and the round wheel can drive the round wheel to rotate around the central shaft. The pulley is in fact a deformed, rotatable lever. The main functions of the pulley are to pull the load, change the direction of the applied force, transmit the power, etc. The pulleys may also be chain driven or belt driven components that transfer power from one rotating shaft to another. However, certain defects still exist in the use process of the pulley in the current market, the rotating speed of the pulley is difficult to control, and when the weight is hoisted and lowered, the weight is easy to collide and damage due to too high speed, so that the use convenience of the pulley is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pulley fixer with speed governing structure to overcome the technical problem who exists among the prior art.

In order to realize the technical purpose, the technical effect is achieved, the utility model provides a following technical scheme:

the utility model provides a pulley fixer with speed governing structure, includes the pulley, the axle center department of pulley is connected with the fixed axle, sealed bearing is installed at both ends about the fixed axle, sealed bearing's outer lane is connected with L type seat, the horizontal end top of L type seat is connected with the dovetail, the threaded hole is seted up at the top center of dovetail, the top of L type seat is equipped with the assembly piece, the dovetail has been seted up to the bottom of assembly piece, the dovetail is pegged graft in the dovetail, the upper end spiro union of dovetail has fastening bolt, the fastening bolt lower extreme stretches into the screw hole, two be connected with the speed governing shell between the assembly piece.

Preferably, in the pulley fixer with speed governing structure, the middle part of speed governing shell is rotated and is connected with the worm, the upper end of worm is connected with the knob, the meshing of the left and right sides of worm is connected with the worm wheel, the worm wheel center is connected with the steering spindle, the tip of steering spindle is rotated and is connected speed governing shell inner wall, the preceding terminal surface of worm wheel is connected with the folding rod, the lower extreme of folding rod articulates there is the slider, the inner wall left and right sides of speed governing shell all is connected with the telescopic link, the expansion end of telescopic link is connected with the briquetting, the briquetting is close to the one end of pulley and is connected with the speed reduction cushion, perpendicular groove has been seted up to the other end of briquetting, slider sliding connection is in perpendicular groove.

Preferably, in the pulley fixer with speed governing structure, the right angle department welding of L type seat has the triangle mounting panel, the welding has the second strengthening rib between assembly piece top and the speed governing shell.

Preferably, in the pulley fixer with the speed regulation structure, the vertical groove is a T-shaped groove, and the sliding block is a T-shaped block.

Preferably, in the pulley fixer with the speed regulation structure, the telescopic rods are free telescopic rods, and the telescopic rods are provided with two groups and symmetrically arranged at two sides of the folding rod in front-back symmetry.

Preferably, in the pulley fixer with the speed regulation structure, the axis line of the worm coincides with the center of the pulley, and the unfolding spiral angle of the worm is smaller than the contact friction angle of the worm and the gear.

The utility model has the advantages that:

the utility model has the advantages of reasonable design, utilize triangle mounting panel cooperation fixed screw, be convenient for install L type seat fixed, utilize the dovetail, fastening bolt, the screw hole cooperatees, make assembly piece and speed governing shell loading and unloading convenient, through worm meshing transmission worm wheel, make the folding rod rotate the back slider along erecting the groove and removing, the pulley outer wall can be laminated to the speed reduction cushion of briquetting tip, make the resistance increase when the pulley rotates, can adjust the restriction to pulley pivoted speed, effectively avoid the heavy object to move down the collision damage that the speed leads to at the excessive speed, and is convenient and practical.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some examples of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

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

fig. 2 is a schematic diagram of the internal structure of the speed regulating housing of the present invention;

FIG. 3 is a schematic view of the structure of the middle pressing block of the present invention;

fig. 4 is a schematic structural view of the L-shaped seat of the present invention.

In the figure: 1. a pulley; 2. a fixed shaft; 3. sealing the bearing; 4. an L-shaped seat; 5. a dovetail strip; 6. a threaded hole; 7. assembling the block; 8. a dovetail groove; 9. fastening a bolt; 10. a speed regulating shell; 11. a worm; 12. a knob; 13. a worm gear; 14. a steering shaft; 15. folding the rod; 16. a telescopic rod; 17. briquetting; 18. a deceleration rubber pad; 19. a vertical slot; 20. a slider; 401. a triangular mounting plate; 402. and fixing the screw.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-4, the present embodiment is a pulley fixer with a speed regulation structure, including a pulley 1, a fixed shaft 2 is connected to an axis of the pulley 1, sealing bearings 3 are installed at left and right ends of the fixed shaft 2, an L-shaped seat 4 is connected to an outer ring of the sealing bearing 3, a dovetail strip 5 is connected to a top of a transverse end of the L-shaped seat 4, a threaded hole 6 is formed in a center of a top of the dovetail strip 5, an assembly block 7 is arranged above the L-shaped seat 4, a dovetail groove 8 is formed at a bottom of the assembly block 7, the dovetail strip 5 is inserted into the dovetail groove 8, a fastening bolt 9 is screwed to an upper end of the dovetail groove 8, a lower end of the fastening bolt 9 extends into the threaded hole 6, a speed regulation shell 10 is connected between the two assembly blocks 7, and the assembly block 7 is conveniently installed by using the dovetail strip 5 to cooperate with the dovetail groove 8, thereby facilitating assembly and disassembly of the speed regulation shell 10.

The middle part of speed governing shell 10 is rotated and is connected with worm 11, the upper end of worm 11 is connected with knob 12, the left and right sides meshing of worm 11 is connected with worm wheel 13, worm wheel 13 center is connected with steering spindle 14, the tip of steering spindle 14 is rotated and is connected speed governing shell 10 inner wall, the preceding terminal surface of worm wheel 13 is connected with folding rod 15, folding rod 15's lower extreme articulates there is slider 20, the inner wall left and right sides of speed governing shell 10 all is connected with telescopic link 16, the expansion end of telescopic link 16 is connected with briquetting 17, briquetting 17 is close to pulley 1's one end and is connected with speed reduction cushion 18, perpendicular groove 19 has been seted up to briquetting 17's the other end, slider 20 sliding connection is in perpendicular groove 19, speed reduction cushion 18 can butt pulley 1 outer wall, be convenient for adjust pulley 1 rotational speed.

The right angle department welding of L type seat 4 has triangle mounting panel 401, is equipped with set screw 402 on the triangle mounting panel 401, makes things convenient for L type seat 4 to install and use.

The vertical groove 19 is a T-shaped groove, and the sliding block 20 is a T-shaped block, so that the sliding block 20 can be lifted vertically conveniently.

The telescopic link 16 adopts free telescopic link, and telescopic link 16 is equipped with two sets ofly and around the symmetry set up in 15 both sides of folding rod, can reach good guide effect.

The axial lead of the worm 11 coincides with the center of the pulley 1, so that the speed-reducing rubber cushion 18 is conveniently attached to the pulley 1 for clamping, the expansion spiral angle of the worm 11 is smaller than the friction angle of the worm wheel 13 and the worm 11, the self-locking effect can be realized, and the folding rod 15 is prevented from shaking.

The utility model discloses a specific embodiment does:

this device is when using, utilize triangle mounting panel 401 cooperation fixed screw 402, can install L type seat 4 fixedly, rotate through sealed bearing 3 between L type seat 4 and the fixed axle 2 and be connected, be convenient for rope laminating pulley 1 operation, dovetail 5 can insert along dovetail 8, it is spacing to utilize fastening bolt 9 cooperation screw hole 6, can fix assembly piece 7, thereby accomplish the installation of speed governing shell 10, can rotate worm 11 through knob 12, worm 11 meshes transmission worm wheel 13, make steering shaft 14 deflect certain angle in speed governing shell 10, folding rod 15 rotates along with worm wheel 13 is synchronous, make slider 20 remove along vertical groove 19, utilize telescopic link 16 to carry out spacing direction, make briquetting 17 horizontal migration, speed reduction cushion 18 can laminate pulley 1 outer wall, thereby make the resistance increase when pulley 1 rotates, adjust the restriction to pulley pivoted speed, effectively avoid the heavy object to move down the collision damage that the speed leads to at the excessive speed, and convenient and practical.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, thereby enabling others skilled in the art to best understand the invention and its practical application. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A pulley fixer with speed regulation structure, includes pulley (1), its characterized in that: the axle center department of pulley (1) is connected with fixed axle (2), sealed bearing (3) are installed at both ends about fixed axle (2), the outer lane of sealed bearing (3) is connected with L type seat (4), the horizontal end top of L type seat (4) is connected with dovetail (5), threaded hole (6) are seted up at the top center of dovetail (5), the top of L type seat (4) is equipped with assembly block (7), dovetail (8) have been seted up to the bottom of assembly block (7), dovetail (5) are pegged graft in dovetail (8), the upper end spiro union of dovetail (8) has fastening bolt (9), fastening bolt (9) lower extreme stretches into screw hole (6), two be connected with speed governing shell (10) between assembly block (7).

2. The pulley holder with a governor structure of claim 1, wherein: the middle part of speed governing shell (10) is rotated and is connected with worm (11), the upper end of worm (11) is connected with knob (12), the left and right sides meshing of worm (11) is connected with worm wheel (13), worm wheel (13) center is connected with steering spindle (14), the tip of steering spindle (14) is rotated and is connected speed governing shell (10) inner wall, the preceding terminal surface of worm wheel (13) is connected with folding rod (15), the lower extreme of folding rod (15) articulates there is slider (20), the inner wall left and right sides of speed governing shell (10) all is connected with telescopic link (16), the expansion end of telescopic link (16) is connected with briquetting (17), the one end that briquetting (17) are close to pulley (1) is connected with speed reduction cushion (18), perpendicular groove (19) have been seted up to the other end of briquetting (17), slider (20) sliding connection is in perpendicular groove (19).

3. The pulley holder with a governor structure of claim 1, wherein: the right angle department welding of L type seat (4) has triangle mounting panel (401), be equipped with fixed screw (402) on triangle mounting panel (401).

4. The pulley holder with a governor structure of claim 2, wherein: the vertical groove (19) is a T-shaped groove, and the sliding block (20) is a T-shaped block.

5. The pulley holder with a governor structure of claim 2, wherein: the telescopic rods (16) are free telescopic rods, and the telescopic rods (16) are provided with two groups and symmetrically arranged on two sides of the folding rod (15) in a front-back symmetrical mode.

6. A pulley holder having a governor structure according to claim 2, wherein: the axial lead of the worm (11) is coincided with the center of the pulley (1), and the unfolding helical angle of the worm (11) is smaller than the contact friction angle of the worm (11) of the worm wheel (13).