CN211946049U

CN211946049U - Pulley convenient to adjust

Info

Publication number: CN211946049U
Application number: CN202020502904.5U
Authority: CN
Inventors: 徐三成; 徐健芬
Original assignee: Hangzhou Fuyang Sancheng Machinery Co ltd
Current assignee: Hangzhou Fuyang Sancheng Machinery Co ltd
Priority date: 2020-04-09
Filing date: 2020-04-09
Publication date: 2020-11-17
Anticipated expiration: 2030-04-09

Abstract

The utility model provides a pulley convenient to adjust. The pulley convenient to adjust comprises a mounting plate; the gantry support frame is fixedly arranged at the bottom of the mounting plate; the two rotating shafts are rotatably arranged on the gantry supporting frame; the pulley circular shaft is fixedly arranged at one end of the two rotating shafts, which are close to each other; the two limiting plates are movably sleeved on the pulley circular shaft; the two fixed ferrules are fixedly arranged on the outer wall of one side, far away from each other, of the two limiting plates respectively; and the two mounting discs are movably sleeved on the pulley circular shaft respectively. The utility model provides a pulley convenient to adjust has rope or the cable wire of the different diameters of adaptable and rotates, convenient operation's advantage.

Description

Pulley convenient to adjust

Technical Field

The utility model relates to a pulley technical field especially relates to a pulley convenient to adjust.

Background

The pulley is a simple machine which is used for lifting heavy objects and saves labor, and the traditional pulley is a small wheel with a groove at the periphery and capable of rotating around a shaft, and a rope, a steel cable and the like can rotate around a central shaft.

However, the conventional pulley has a relatively simple structure, and the annular groove formed in the pulley is difficult to adapt to ropes, steel cables and the like with different diameters.

Therefore, there is a need to provide a new pulley that is easy to adjust to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem provide a rope or cable wire of different diameters of adaptable rotate, convenient operation's pulley of being convenient for adjust.

In order to solve the technical problem, the utility model provides a pulley convenient to adjust includes: mounting a plate; the gantry support frame is fixedly arranged at the bottom of the mounting plate; the two rotating shafts are rotatably arranged on the gantry supporting frame; the pulley circular shaft is fixedly arranged at one end of the two rotating shafts, which are close to each other; the two limiting plates are movably sleeved on the pulley circular shaft; the two fixed ferrules are fixedly arranged on the outer wall of one side, far away from each other, of the two limiting plates respectively; the two mounting discs are movably sleeved on the pulley circular shaft respectively, and are rotatably connected with the two fixed ferrules respectively; the two connecting plates are respectively arranged on two sides of the gantry support frame; the four limiting slide bars are all slidably mounted on the inner walls of the two sides of the gantry support frame, one ends of the four limiting slide bars, which are far away from the pulley round shafts, are all fixedly connected with the corresponding connecting plates, and one ends of the four limiting slide bars, which are close to the pulley round shafts, are all fixedly connected with the corresponding mounting discs; the adjusting screw rod is rotatably arranged on the gantry support frame and is in threaded connection with the two connecting plates; and the adjusting turntable is fixedly arranged at one end of the adjusting screw rod.

Preferably, four mounting holes which are distributed in a rectangular shape are formed in the top of the mounting plate.

Preferably, the inner walls of the two sides of the gantry support frame are both provided with first fixing holes, the outer wall of the adjusting screw rod is fixedly sleeved with two first bearings, the outer rings of the two first bearings are fixedly connected with the corresponding inner walls of the first fixing holes, and the outer wall of the adjusting screw rod is provided with external threads with opposite rotation directions at two ends.

Preferably, the inner walls of the two sides of the gantry support frame are respectively provided with a second fixing hole, the outer walls of the two rotating shafts are respectively fixedly sleeved with a second bearing, and the outer rings of the two second bearings are respectively fixedly connected with the inner walls of the two second fixing holes.

Preferably, the outer wall of one side of each of the two connecting plates is provided with an internal thread hole, and the adjusting screw rod penetrates through the two internal thread holes and is screwed with the inner walls of the two internal thread holes.

Preferably, the outer wall of one side of each of the two installation plates, which is close to each other, is provided with a circular convex ring, the outer wall of each of the two circular convex rings is fixedly sleeved with a third bearing, and the outer ring of each of the two third bearings is fixedly connected with the inner wall of each of the two fixed ferrules.

Preferably, two third fixing holes are formed in the inner walls of the two sides of the gantry support frame, linear bearings are fixedly mounted in the four third fixing holes, and the four limiting slide bars penetrate through the corresponding linear bearings and are connected with the inner walls of the corresponding linear bearings in a sliding mode.

Compared with the prior art, the utility model provides a pulley convenient to adjust has following beneficial effect:

the utility model provides a pulley convenient to adjust, distance between two limiting plates are adjustable design, when using, can adjust the distance between two limiting plates according to the diameter of rope or cable wire, and the suitability is higher, and two limiting plates are rotatable design, can not form great hindrance to the pulling of rope or cable wire, and whole use is reliable.

Drawings

Fig. 1 is a schematic structural view of a preferred embodiment of a pulley that is easy to adjust according to the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

fig. 3 is a top view of the mounting plate shown in fig. 1.

Reference numbers in the figures: 1. the device comprises a mounting plate, 2, a gantry support frame, 3, a rotating shaft, 4, a pulley circular shaft, 5, a limiting plate, 6, a fixing ferrule, 7, a mounting disc, 8, a connecting plate, 9, a limiting slide rod, 10, an adjusting screw rod, 11, an adjusting turntable, 12 and a mounting hole.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and embodiments.

Please refer to fig. 1, fig. 2 and fig. 3 in combination, wherein fig. 1 is a schematic structural diagram of a pulley convenient to adjust according to a preferred embodiment of the present invention; FIG. 2 is an enlarged view of portion A of FIG. 1; fig. 3 is a top view of the mounting plate shown in fig. 1. The pulley that facilitates adjustment includes: a mounting plate 1; the gantry support frame 2 is fixedly arranged at the bottom of the mounting plate 1; the two rotating shafts 3 are both rotatably arranged on the gantry support frame 2; the pulley circular shaft 4 is fixedly arranged at one end of the two rotating shafts 3, which are close to each other; the two limiting plates 5 are movably sleeved on the pulley round shaft 4; two fixed ferrules 6, wherein the two fixed ferrules 6 are respectively fixedly arranged on the outer walls of the two far sides of the limiting plates 5; the two mounting discs 7 are respectively and movably sleeved on the pulley circular shaft 4, and the two mounting discs 7 are respectively and rotatably connected with the two fixed ferrules 6; the two connecting plates 8 are respectively arranged at two sides of the gantry support frame 2; the four limiting slide bars 9 are all slidably mounted on the inner walls of the two sides of the gantry support frame 2, one ends of the four limiting slide bars 9, which are far away from the pulley round shafts 4, are all fixedly connected with the corresponding connecting plates 8, and one ends of the four limiting slide bars 9, which are close to the pulley round shafts 4, are all fixedly connected with the corresponding mounting discs 7; the adjusting screw rod 10 is rotatably arranged on the gantry support frame 2, and the adjusting screw rod 10 is in threaded connection with the two connecting plates 8; and the adjusting turntable 11 is fixedly arranged at one end of the adjusting screw rod 10.

Four mounting holes 12 which are distributed in a rectangular shape are formed in the top of the mounting plate 1.

First fixing holes are formed in the inner walls of the two sides of the gantry support frame 2, two first bearings are fixedly sleeved on the outer wall of the adjusting screw rod 10, the outer rings of the two first bearings are fixedly connected with the corresponding inner walls of the first fixing holes, and external threads with opposite rotating directions of the two ends are formed in the outer wall of the adjusting screw rod 10.

Second fixing holes are formed in the inner walls of the two sides of the gantry support frame 2, second bearings are fixedly sleeved on the outer walls of the two rotating shafts 3, and the outer rings of the two second bearings are fixedly connected with the inner walls of the two second fixing holes respectively.

Two all seted up the internal thread hole on one side outer wall of connecting plate 8, accommodate the lead screw 10 runs through two the internal thread hole and closes mutually with two the inner wall in internal thread hole closes mutually soon.

The outer wall of one side, close to each other, of each of the two mounting discs 7 is provided with a circular convex ring, the outer wall of each of the two circular convex rings is fixedly sleeved with a third bearing, and the outer rings of the two third bearings are fixedly connected with the inner walls of the two fixing rings 6 respectively.

Two third fixing holes are formed in the inner walls of the two sides of the gantry support frame 2, linear bearings are fixedly mounted in the four third fixing holes, and the four limiting slide bars 9 penetrate through the corresponding linear bearings and are connected with the inner walls of the corresponding linear bearings in a sliding mode.

The utility model provides a working principle of pulley convenient to adjust as follows:

during installation, the installation plate 1 can be fixed by using bolts, so that the installation work of the device is completed;

when the rope is pulled, the pulley round shaft 4 can rotate, so that the rope or the steel cable is pulled more smoothly;

the distance between the two limiting plates 5 can be adjusted according to the different diameters of the ropes or the steel cables, during adjustment, the adjusting turntable 12 can be rotated clockwise or anticlockwise to drive the adjusting screw rod 10 to rotate correspondingly, the adjusting screw rod 10 can drive the two connecting plates 8 to move oppositely or move backwards in the clockwise or anticlockwise rotating process, so that the distance between the two connecting plates 8 is increased or decreased, the distance between the two limiting plates 5 can be increased or decreased under the driving of the two connecting plates 8, and the limitation on the ropes or the steel cables with different diameters is met;

the two limiting plates 5 are rotatably mounted on the corresponding mounting discs 7, and when the rope or the steel cable is pulled, the limiting plates 5 can rotate under the friction force of the rope or the steel cable, so that the pulling of the rope cannot be greatly influenced.

the utility model provides a pulley convenient to adjust, distance between two limiting plates 5 are adjustable design, when using, can adjust the distance between two limiting plates 5 according to the diameter of rope or cable wire, and the suitability is higher, and two limiting plates 5 are rotatable design, can not form great hindrance to the pulling of rope or cable wire, and whole use is reliable.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims

1. A pulley wheel for facilitating adjustment, comprising:

mounting a plate;

the gantry support frame is fixedly arranged at the bottom of the mounting plate;

the two rotating shafts are rotatably arranged on the gantry supporting frame;

the pulley circular shaft is fixedly arranged at one end of the two rotating shafts, which are close to each other;

the two limiting plates are movably sleeved on the pulley circular shaft;

the two fixed ferrules are fixedly arranged on the outer wall of one side, far away from each other, of the two limiting plates respectively;

the two mounting discs are movably sleeved on the pulley circular shaft respectively, and are rotatably connected with the two fixed ferrules respectively;

the two connecting plates are respectively arranged on two sides of the gantry support frame;

the four limiting slide bars are all slidably mounted on the inner walls of the two sides of the gantry support frame, one ends of the four limiting slide bars, which are far away from the pulley round shafts, are all fixedly connected with the corresponding connecting plates, and one ends of the four limiting slide bars, which are close to the pulley round shafts, are all fixedly connected with the corresponding mounting discs;

the adjusting screw rod is rotatably arranged on the gantry support frame and is in threaded connection with the two connecting plates;

and the adjusting turntable is fixedly arranged at one end of the adjusting screw rod.

2. The pulley facilitating adjustment of claim 1, wherein the top of the mounting plate defines four mounting holes distributed in a rectangular shape.

3. The pulley convenient for adjustment of claim 1, wherein the inner walls of the two sides of the gantry support frame are respectively provided with a first fixing hole, the outer wall of the adjusting screw rod is fixedly sleeved with two first bearings, the outer rings of the two first bearings are respectively fixedly connected with the corresponding inner walls of the first fixing holes, and the outer wall of the adjusting screw rod is provided with an external thread with opposite rotation directions at two ends.

4. The adjustable pulley as claimed in claim 1, wherein the inner walls of the gantry support frame are respectively provided with a second fixing hole, the outer walls of the two rotating shafts are respectively fixedly provided with a second bearing, and the outer rings of the two second bearings are respectively fixedly connected with the inner walls of the two second fixing holes.

5. The pulley convenient to adjust according to claim 1, wherein an inner threaded hole is formed in an outer wall of one side of each of the two connecting plates, and the adjusting screw rod penetrates through the two inner threaded holes and is screwed with inner walls of the two inner threaded holes.

6. The pulley convenient to adjust according to claim 1, wherein the two mounting plates are provided with a circular convex ring on the outer wall of one side close to each other, a third bearing is fixedly sleeved on the outer wall of each of the two circular convex rings, and the outer rings of the two third bearings are respectively and fixedly connected with the inner walls of the two fixed ferrules.

7. The pulley convenient to adjust of claim 1, wherein two third fixing holes are formed in the inner walls of two sides of the gantry support frame, linear bearings are fixedly mounted in the four third fixing holes, and the four limiting sliding rods penetrate through the corresponding linear bearings and are connected with the inner walls of the corresponding linear bearings in a sliding manner.