CN209990798U

CN209990798U - Fixing device of belt pulley and shaft

Info

Publication number: CN209990798U
Application number: CN201920810604.0U
Authority: CN
Inventors: 房文旗; 赵长岭
Original assignee: SHANDONG JINBAOSHAN MINING MACHINERY Co Ltd
Current assignee: SHANDONG JINBAOSHAN MINING MACHINERY Co Ltd
Priority date: 2019-05-31
Filing date: 2019-05-31
Publication date: 2020-01-24
Anticipated expiration: 2029-05-31

Abstract

The utility model discloses a fixing device of a belt wheel and a shaft, which comprises a belt wheel, wherein the center of the surface of the belt wheel is provided with a shaft hole, a shaft rod is sleeved in the shaft hole, a tensioning sleeve is sleeved on the outer wall of one end of the shaft rod, tensioning blocks are arranged at two ends in the tensioning sleeve, and tensioning screws are connected between the tensioning blocks; the utility model discloses a tight cover that rises of design, tight cover that rises mainly fixes both through clearance fit to easy dismounting, through the tight screw that rises of design, through twisting the tight screw that rises and drive the tight piece that rises and to the tight cover that rises and carry out clearance fit, through the baffle of design, install the reinforcement to axostylus axostyle and band pulley, the counter shaft hole port department carries out the shutoff simultaneously, avoids the entering of dust.

Description

Fixing device of belt pulley and shaft

Technical Field

The utility model belongs to the technical field of band pulley and axle are fixed, concretely relates to fixing device of band pulley and axle.

Background

At present, the fixing modes of large belt wheels are all in interference fit key connection, and hot assembly or press assembly is generally needed in the assembly process.

The fixed mode between current band pulley and the axle all carries out interference fit through the parallel key to with its mutual chucking, but this fixed mode leads to equipment to dismantle more difficultly when the maintenance, and the interference fit undersize or transition fit band pulley and axle probably are not hard up easily in the use, drop easily when the band pulley is not hard up again high-speed rotatory problem that appears the potential safety hazard, for this reason the utility model provides a fixing device of band pulley and axle.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fixing device of band pulley and axle to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the fixing device for the belt wheel and the shaft comprises a belt wheel, wherein a shaft hole is formed in the center of the surface of the belt wheel, a shaft rod is sleeved inside the shaft hole, a tensioning sleeve is sleeved on the outer wall of one end of the shaft rod, tensioning blocks are arranged at two ends inside the tensioning sleeve, and tensioning screws are connected between the tensioning blocks.

Preferably, the end face of the shaft lever is provided with a thread groove, the end part of the belt wheel is provided with a baffle, the surface of the baffle is provided with a through hole, a mounting screw is sleeved inside the through hole, and the mounting screw is in threaded connection with the thread groove.

Preferably, the belt wheel is provided with mounting grooves on both sides of the surface, positioning columns are arranged in the mounting grooves, springs are arranged between one ends of the positioning columns and the mounting grooves, positioning holes are formed in both sides of the surface of the baffle, and the positioning columns are inserted into the positioning holes and connected with the baffle.

Preferably, the outside cover of reference column is equipped with the mounting panel, the mounting panel is fixed at the mounting groove tip, mounting panel inner wall both sides all are fixed with the slider, the spout has all been seted up to reference column outer wall both sides, the slider is located inside and the reference column interconnect of spout.

Preferably, the longitudinal section of the belt wheel is of a circular structure, and the cross section of the shaft hole is of a stepped structure.

Preferably, the outer wall of the belt wheel is provided with a belt groove, and the cross section of the belt groove is of an inverted tooth type structure.

Preferably, lightening holes are formed in the end face of the belt wheel, and the cross section of each lightening hole is of an I-shaped structure.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) through the tight cover that rises of design, tight cover that rises mainly fixes both through clearance fit to easy dismounting drives the tight piece that rises through the tight screw that rises of design and carries out clearance fit to tight cover that rises through twisting the tight screw that rises, through the baffle of design, installs the reinforcement to axostylus axostyle and band pulley, blocks up counter shaft hole port department simultaneously, avoids the entering of dust.

(2) Through the reference column of design, the reference column can insert in the locating hole of baffle, thereby fix a position the installation of baffle, be difficult to when avoiding its installation the skew appears to hole and fixed in-process, through the spring of design, exert the spring action to the reference column, guarantee that it inserts in the locating hole by oneself, guarantee simultaneously that the reference column can slide in the mounting groove, through the mounting panel of design, install the slider of being convenient for, through the slider of design, the slider is located the spout, thereby prescribe a limit to the displacement of reference column, avoid it to break away from the mounting groove.

Drawings

FIG. 1 is a schematic view of the belt wheel and shaft assembly of the present invention;

FIG. 2 is a right side view of the belt wheel and shaft assembly of the present invention;

FIG. 3 is a schematic view of the belt wheel and baffle of the present invention showing a partially overlooked mounting internal structure;

fig. 4 is a right side view of the present invention;

FIG. 5 is a partial enlarged view of the position A of the present invention;

in the figure: 1. a pulley; 2. tensioning screws; 3. a baffle plate; 4. a shaft hole; 5. a shaft lever; 6. a tensioning sleeve; 7. a slider; 8. a chute; 9. a positioning column; 10. positioning holes; 11. mounting grooves; 12. a spring; 13. and (7) mounting the plate.

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 in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1 and fig. 2, the present invention provides a technical solution: a fixing device for a belt wheel and a shaft comprises a belt wheel 1, a shaft hole 4 is formed in the center of the surface of the belt wheel 1, a shaft rod 5 is sleeved in the shaft hole 4, a tensioning sleeve 6 is sleeved on the outer wall of one end of the shaft rod 5, the tensioning sleeve 6 is designed to fix the shaft rod and the shaft rod through clearance fit, so that the mounting and the dismounting are convenient, tensioning blocks are arranged at two ends in the tensioning sleeve 6, tensioning screws 2 are connected between the tensioning blocks, the tensioning blocks are driven to be in clearance fit with the tensioning sleeve 6 through the tensioning screws 2, threaded grooves are formed in the end face of the shaft rod 5, a baffle 3 is arranged at the end of the belt wheel 1, the shaft rod 5 and the belt wheel 1 are mounted and reinforced through the designed baffle 3, the port of the shaft hole 4 is simultaneously sealed to prevent dust from entering, through holes are formed in the surface of the baffle 3, and mounting screws are, the mounting screw is connected with the thread groove through threads.

Example 2

Referring to fig. 1 to 5, the present invention provides a technical solution: a fixing device for a belt wheel and a shaft comprises a belt wheel 1, a shaft hole 4 is formed in the center of the surface of the belt wheel 1, a shaft rod 5 is sleeved in the shaft hole 4, a tensioning sleeve 6 is sleeved on the outer wall of one end of the shaft rod 5, the tensioning sleeve 6 is designed to fix the shaft rod and the shaft rod through clearance fit, so that the mounting and the dismounting are convenient, tensioning blocks are arranged at two ends in the tensioning sleeve 6, tensioning screws 2 are connected between the tensioning blocks, the tensioning blocks are driven to be in clearance fit with the tensioning sleeve 6 through the tensioning screws 2, threaded grooves are formed in the end face of the shaft rod 5, a baffle 3 is arranged at the end of the belt wheel 1, the shaft rod 5 and the belt wheel 1 are mounted and reinforced through the designed baffle 3, the port of the shaft hole 4 is simultaneously sealed to prevent dust from entering, through holes are formed in the surface of the baffle 3, and mounting screws are, the mounting screw is connected with the thread groove through threads.

In the embodiment, preferably, both sides of the surface of the belt pulley 1 are provided with mounting grooves 11, positioning pillars 9 are arranged inside the mounting grooves 11, the positioning pillars 9 can be inserted into positioning holes 10 of the baffle plate 3 through the designed positioning pillars 9, so as to position the installation of the baffle plate 3, thereby preventing the baffle plate 3 from being difficult to shift in the hole and fixing processes during the installation, a spring 12 is arranged between one end of the positioning pillar 9 and the mounting groove 11, the positioning pillar 9 is ensured to be automatically inserted into the positioning hole 10 by applying an elastic force to the positioning pillar 9 through the designed spring 12, and simultaneously, the positioning pillar 9 is ensured to slide in the mounting groove 11, both sides of the surface of the baffle plate 3 are provided with the positioning holes 10, the positioning pillar 9 is inserted into the positioning hole 10 to be mutually connected with the baffle plate 3, the mounting plate 13 is sleeved outside the positioning pillar, mounting panel 13 inner wall both sides all are fixed with slider 7, and slider 7 through the design is located spout 8 to inject the displacement distance of reference column 9, avoid it to break away from mounting groove 11, spout 8 has all been seted up to reference column 9 outer wall both sides, and slider 7 is located inside and reference column 9 interconnect of spout 8.

The utility model discloses a theory of operation and use flow: when the shaft lever 5 and the belt wheel 1 are installed, the shaft lever is inserted into the shaft hole 4 of the belt wheel 1, then the tensioning sleeve 6 waiting for loosening is sleeved outside the shaft lever 5, and is positioned in the shaft hole 4, and the tensioning block is moved by screwing the tensioning screw 2, so that the tensioning sleeve 6 is expanded, the shaft lever 5 and the belt wheel 1 are fixed together, and the baffle 3 is fixed at the end part of the shaft lever 5 through the mounting screw;

the utility model discloses in when installing baffle 3, press baffle 3 on band pulley 1's terminal surface, baffle 3 exerts pressure to reference column 9 this moment, make reference column 9 remove in mounting groove 11, rotating baffle 3, when locating hole 10 on 3 surfaces of baffle is located reference column 9 tip, spring 12 in compression state exerts elasticity to reference column 9, thereby make it insert rapidly in locating hole 10, carry out quick spacing to baffle 3, thereby the staff can carry out fixed mounting to baffle 3 through mounting screw.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A fixing device of a pulley to a shaft, comprising a pulley (1), characterized in that: the belt pulley is characterized in that a shaft hole (4) is formed in the center of the surface of the belt pulley (1), a shaft rod (5) is sleeved in the shaft hole (4), a tensioning sleeve (6) is sleeved on the outer wall of one end of the shaft rod (5), tensioning blocks are arranged at two ends of the inside of the tensioning sleeve (6), and tensioning screws (2) are connected between the tensioning blocks.

2. A pulley and shaft attachment according to claim 1, wherein: the end face of the shaft rod (5) is provided with a thread groove, the end part of the belt wheel (1) is provided with a baffle (3), the surface of the baffle (3) is provided with a through hole, a mounting screw is sleeved inside the through hole, and the mounting screw is in threaded connection with the thread groove.

3. A pulley and shaft attachment according to claim 2, wherein: mounting groove (11) have all been seted up to band pulley (1) surface both sides, mounting groove (11) inside is provided with reference column (9), be provided with spring (12) between reference column (9) one end and mounting groove (11), locating hole (10) have all been seted up to baffle (3) surface both sides, reference column (9) insert locating hole (10) inside and baffle (3) interconnect.

4. A pulley and shaft attachment according to claim 3, wherein: reference column (9) outside cover is equipped with mounting panel (13), mounting panel (13) are fixed at mounting groove (11) tip, mounting panel (13) inner wall both sides all are fixed with slider (7), spout (8) have all been seted up to reference column (9) outer wall both sides, slider (7) are located inside and reference column (9) interconnect of spout (8).

5. A pulley and shaft attachment according to claim 3, wherein: the longitudinal section of the belt wheel (1) is of a circular structure, and the cross section of the shaft hole (4) is of a stepped structure.

6. A pulley and shaft attachment according to claim 5, wherein: the outer wall of the belt wheel (1) is provided with a belt groove, and the cross section of the belt groove is of an inverted tooth type structure.

7. A pulley and shaft attachment according to claim 6, wherein: lightening holes are formed in the end face of the belt wheel (1), and the cross section of each lightening hole is of an I-shaped structure.