CN214092943U

CN214092943U - Eccentric gear

Info

Publication number: CN214092943U
Application number: CN202023231197.XU
Authority: CN
Inventors: 边伟锋
Original assignee: Wuxi Qianrui Machinery Manufacturing Co ltd
Current assignee: Wuxi Qianrui Machinery Manufacturing Co ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-08-31
Anticipated expiration: 2030-12-29

Abstract

The utility model discloses an eccentric gear, which comprises a fixed disk, the outer wall of fixed disk is equipped with the tooth that the annular distributes, the pentagon mounting hole has been seted up on the fixed disk, and the bottom inner wall welding of pentagon mounting hole has the install bin, the top of install bin is inserted and is equipped with the pentagon regulating plate, and has seted up the eccentric orfice on the pentagon regulating plate, seted up the dysmorphism installation cavity in the pentagon regulating plate, and the bottom inner wall welding of dysmorphism installation cavity has two fixed blocks, two insert on the fixed block and be equipped with same lead screw, and the cover is equipped with first thread bush and second thread bush on the lead screw in proper order. The utility model discloses be fit for large-scale eccentric gear, rotate through the lead screw that lets the special-shaped installation intracavity and can drive two first thread bush that the screw thread is opposite and the second thread bush is kept away from each other to finally can let two arc gripper jaws keep away from each other, can let this eccentric orfice can adapt the axis of rotation of the different models, improve eccentric gear's commonality like this.

Description

Eccentric gear

Technical Field

The utility model relates to the technical field of gears, especially, relate to an eccentric gear.

Background

The gear is a mechanical element which is provided with a gear on a wheel rim and continuously meshed with the gear to transmit motion and power, and the eccentric gear is one of the gears. The eccentric gear is one of the key parts of the mechanical press, and in the upper beam main transmission system of the press, the eccentric gear, the connecting rod, the guide pillar and the slide block form a crank-slide block mechanism. The rotary motion of the eccentric gear is converted into the linear reciprocating motion of the sliding block through the crank sliding block mechanism, so that the stamping function of the mechanical press is realized, the manufacturing precision of the eccentric gear directly influences the motion precision of the sliding block of the mechanical press, and the whole machine work of the mechanical press is further influenced.

In some large machines, large eccentric gears are used, and the eccentric gears can only be matched with a rotating shaft of one type, so that the universality of the eccentric gears is reduced, and the replacement cost is high; in addition, the eccentric holes formed in the large eccentric gears are fixed in position, and the eccentric gears cannot be adjusted in position according to diversified requirements during operation. Therefore, we propose an eccentric gear.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing an eccentric gear.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an eccentric gear comprises a fixed disk, wherein the outer wall of the fixed disk is provided with teeth which are distributed annularly, a pentagonal mounting hole is formed in the fixed disk, the inner wall of the bottom of the pentagonal mounting hole is welded with a mounting box, a pentagonal adjusting plate is inserted into the top of the mounting box, an eccentric hole is formed in the pentagonal adjusting plate, a special-shaped mounting cavity is formed in the pentagonal adjusting plate, two fixing blocks are welded on the inner wall of the bottom of the special-shaped mounting cavity, the two fixing blocks are inserted with a same lead screw, a first threaded sleeve and a second threaded sleeve are sequentially sleeved on the lead screw, connecting rods are welded on the outer walls of the tops of the first threaded sleeve and the second threaded sleeve, limiting rods are welded on the outer walls of the tops of the connecting rods, arc-shaped clamping claws are welded on the outer walls of the ends, close to each other, of the two limiting rods are symmetrically arranged at the openings of the two arc-shaped clamping claws and are positioned in the eccentric hole, two limiting holes communicated with the eccentric hole are formed in the special-shaped mounting cavity, the outer walls of the two limiting rods are connected with the inner walls of the two limiting holes in a sliding mode, threaded grooves distributed at equal intervals are formed in the inner walls of the two sides of the pentagonal adjusting plate, fastening screws are screwed on the inner walls of the upper portions of the two sides of the mounting box, and one ends, close to the two fastening screws, of the two fastening screws extend into the two threaded grooves respectively.

Preferably, the inserting channel is formed in the inner wall of the top of the installation box, and the outer wall of the pentagonal adjusting plate is connected with the inner wall of the inserting channel in a sliding mode.

Preferably, the lead screw passes through two bearings and is connected with the inner wall of two fixed blocks respectively, and rotatory hole has been seted up to one side inner wall of dysmorphism installation cavity, and the one end of lead screw runs through rotatory hole and extends to outside the pentagonal regulating plate, and the internal diameter of lead screw is less than the internal diameter in rotatory hole.

Preferably, the thread directions of the first thread sleeve and the second thread sleeve are opposite, and the first thread sleeve and the second thread sleeve are matched with the screw rod.

Preferably, the carousel has all been welded to the one end outer wall that the one end outer wall of lead screw and two fastening screw kept away from each other, and the crank has all been welded to the eccentric outer wall in one side of three carousel, and has all cup jointed the rubber antiskid cover on the three crank.

Preferably, the two arc-shaped clamping claws are respectively composed of a first arc-shaped claw and a second arc-shaped claw, and the first arc-shaped claw and the second arc-shaped claw are hinged through a damping hinge.

The utility model has the advantages that:

1. the utility model is suitable for large eccentric gears, the first thread sleeve and the second thread sleeve with opposite threads can be driven to be away from each other by rotating the lead screw in the special-shaped installation cavity, so that the two arc-shaped clamping claws can be finally kept away from each other, and rotating shafts with different models can be clamped and fixed, so that the eccentric hole can be adapted to rotating shafts with different models, and the universality of the eccentric gear is improved;

2. the utility model discloses a remove the pentagon regulating plate and change the position of eccentric orfice to after the regulation is accomplished, accomplish the rigidity through advancing two fastening screw spiro union on both sides into two thread groove that correspond with it, can carry out reasonable regulation to the position of eccentric orfice like this, thereby can satisfy the diversified user demand of eccentric gear during operation.

Drawings

Fig. 1 is a schematic structural view of an eccentric gear according to the present invention;

fig. 2 is a schematic view of a partial enlarged structure of an eccentric gear according to the present invention;

fig. 3 is a schematic structural view of a portion a in fig. 1.

In the figure: 1 fixed disk, 2 pentagon mounting holes, 3 install bin, 4 pentagon regulating plate, 5 eccentric orfices, 6 special-shaped installation chambeies, 7 fixed blocks, 8 lead screws, 9 first thread bush, 10 second thread bush, 11 connecting rods, 12 gag lever posts, 13 arc gripper jaw, 14 spacing holes, 15 thread grooves, 16 fastening screw, 17 carousel, 18 crank, 19 rotation holes.

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.

Referring to fig. 1-3, an eccentric gear comprises a fixed disk 1, wherein the outer wall of the fixed disk 1 is provided with teeth distributed annularly, the fixed disk 1 is provided with pentagonal mounting holes 2, the inner wall of the bottom of each pentagonal mounting hole 2 is welded with a mounting box 3, the top of the mounting box 3 is inserted with a pentagonal adjusting plate 4, the pentagonal adjusting plate 4 is provided with an eccentric hole 5, the inner wall of the top of the mounting box 3 is provided with an inserting channel, the outer wall of the pentagonal adjusting plate 4 is slidably connected with the inner wall of the inserting channel, a special-shaped mounting cavity 6 is arranged in the pentagonal adjusting plate 4, the inner wall of the bottom of the special-shaped mounting cavity 6 is welded with two fixing blocks 7, the two fixing blocks 7 are inserted with a same screw rod 8, the screw rod 8 is sequentially sleeved with a first threaded sleeve 9 and a second threaded sleeve 10, the screw rod 8 is respectively connected with the inner walls of the two fixing blocks 7 through two bearings, one side inner wall of the special-shaped mounting cavity 6 is provided with a rotating hole 19, one end of a screw rod 8 penetrates through a rotating hole 19 and extends out of a pentagonal adjusting plate 4, the inner diameter of the screw rod 8 is smaller than that of the rotating hole 19, the thread directions of a first thread sleeve 9 and a second thread sleeve 10 are opposite, the first thread sleeve 9 and the second thread sleeve 10 are matched with the screw rod 8, connecting rods 11 are welded on the outer walls of the tops of the first thread sleeve 9 and the second thread sleeve 10, limiting rods 12 are welded on the outer walls of the tops of the connecting rods 11, arc-shaped clamping claws 13 are welded on the outer walls of the ends, close to each other, of the two limiting rods 12, the openings of the two arc-shaped clamping claws 13 are symmetrically arranged and are located in eccentric holes 5, the two arc-shaped clamping claws 13 are composed of first arc-shaped claws and second arc-shaped claws, the first arc-shaped claws and the second arc-shaped claws are hinged through damping hinges, two limiting holes 14 communicated with the eccentric holes 5 are formed in a special-shaped mounting cavity 6, and the outer walls of the two limiting rods 12 are connected with the inner walls of the two limiting holes 14 in a sliding manner, the first threaded sleeve 9 and the second threaded sleeve 10 with opposite threads can be driven to be away from each other by rotating the screw rod 8 in the special-shaped mounting cavity 6, so that the two arc-shaped clamping claws 13 can be finally away from each other, rotating shafts of different models can be clamped and fixed, the eccentric hole 5 can be matched with rotating shafts of different models, and the universality of the eccentric gear is improved;

equal distribution's thread groove 15 has all been seted up to the both sides inner wall of pentagonal regulating plate 4, the equal spiro union of both sides upper portion inner wall of install bin 3 has fastening screw 16, and the one end that two fastening screw 16 are close to each other extends to in two of them thread grooves 15 respectively, the equal welding of one end outer wall that lead screw 8's one end outer wall and two fastening screw 16 kept away from each other has carousel 17, the eccentric outer wall in one side of three carousel 17 has all welded crank 18, and all cup jointed the rubber antiskid cover on the three crank 18, change the position of eccentric hole 5 through removing pentagonal regulating plate 4, and after the regulation is accomplished, accomplish the rigidity through advancing two thread grooves 15 that correspond with it with two fastening screw 16 spiro unions on both sides, can carry out reasonable regulation to the position of eccentric hole 5 like this, thereby can satisfy the diversified user demand of eccentric gear during operation.

The working principle is as follows: when the device is used, a crank 18 above the device is rotated to drive a rotary table 17 connected with the device to rotate, the rotary table 17 rotates to drive a screw rod 8 to rotate, the screw rod 8 rotates to drive a first thread sleeve 9 and a second thread sleeve 10 with opposite threads to be away from each other, and then two connecting rods 11 drive two limiting rods 12 to respectively slide in two limiting holes 14, so that finally two arc-shaped clamping claws 13 are away from each other, rotating shafts with different types can be clamped and fixed, the eccentric hole 5 can be matched with rotating shafts with different types, and the two arc-shaped clamping claws 13 are formed by hinging the first arc-shaped claw and the second arc-shaped claw through damping hinges, so that the rotating shafts with different types can be better matched; when the position of eccentric orfice 5 needs to be changed, remove in to install bin 3 through the bottom with pentagon regulating plate 4 to after removing the completion, drive two carousel 17 rotations through two crank 18 of rotation below, and then can accomplish the rigidity with two fastening screw 16 spiro unions on both sides in two thread groove 15 that correspond with it.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. An eccentric gear comprises a fixed disk (1), wherein the outer wall of the fixed disk (1) is provided with teeth distributed in an annular shape, and is characterized in that pentagonal mounting holes (2) are formed in the fixed disk (1), a mounting box (3) is welded on the inner wall of the bottom of each pentagonal mounting hole (2), a pentagonal adjusting plate (4) is inserted into the top of the mounting box (3), an eccentric hole (5) is formed in each pentagonal adjusting plate (4), a special-shaped mounting cavity (6) is formed in each pentagonal adjusting plate (4), two fixing blocks (7) are welded on the inner wall of the bottom of each special-shaped mounting cavity (6), one lead screw (8) is inserted into each fixing block (7), a first thread sleeve (9) and a second thread sleeve (10) are sequentially sleeved on each lead screw (8), and connecting rods (11) are welded on the outer walls of the tops of the first thread sleeve (9) and the second thread sleeve (10), and gag lever post (12) are all welded to the top outer wall of connecting rod (11), two arc gripper jaw (13) are all welded to the one end outer wall that gag lever post (12) are close to each other, and the opening part symmetry of two arc gripper jaws (13) sets up and all is located eccentric orfice (5), set up two and communicating spacing hole (14) in eccentric orfice (5) on dysmorphism installation cavity (6), and the outer wall of two gag lever posts (12) and the inner wall sliding connection of two spacing holes (14), thread groove (15) that the equidistance distributes are all seted up to the both sides inner wall of pentagonal regulating plate (4), the equal spiro union of both sides upper portion inner wall of install bin (3) has fastening screw (16), and the one end that two fastening screw (16) are close to each other extends to in two of them thread groove (15) respectively.

2. The eccentric gear according to claim 1, characterized in that the top inner wall of the mounting box (3) is provided with an inserting channel, and the outer wall of the pentagonal adjusting plate (4) is slidably connected with the inner wall of the inserting channel.

3. The eccentric gear according to claim 1, wherein the screw rod (8) is connected with the inner walls of the two fixing blocks (7) through two bearings, a rotating hole (19) is formed in the inner wall of one side of the special-shaped mounting cavity (6), one end of the screw rod (8) penetrates through the rotating hole (19) and extends out of the pentagonal adjusting plate (4), and the inner diameter of the screw rod (8) is smaller than that of the rotating hole (19).

4. An eccentric gear according to claim 1, characterized in that the first (9) and second (10) thread bushings are of opposite thread direction and that both the first (9) and second (10) thread bushings are adapted to the screw (8).

5. The eccentric gear according to claim 1, characterized in that the outer wall of one end of the screw rod (8) and the outer wall of the end, far away from each other, of the two fastening screws (16) are welded with turntables (17), the eccentric outer walls of one sides of the three turntables (17) are welded with cranks (18), and the three cranks (18) are sleeved with rubber anti-skidding sleeves.

6. An eccentric gear according to claim 1, characterized in that both of said arc-shaped clamping jaws (13) consist of a first arc-shaped jaw and a second arc-shaped jaw, and that the first arc-shaped jaw and the second arc-shaped jaw are hinged by means of a damped hinge.