CN211398488U

CN211398488U - Anti-drop chain transmission double chain wheel

Info

Publication number: CN211398488U
Application number: CN201922017843.3U
Authority: CN
Inventors: 章柯波
Original assignee: Zhejiang Chuanyi Machinery Co ltd
Current assignee: Zhejiang Chuanyi Machinery Co ltd
Priority date: 2019-11-20
Filing date: 2019-11-20
Publication date: 2020-09-01
Anticipated expiration: 2029-11-20

Abstract

The utility model discloses an anti-drop chain transmission double sprocket, which comprises a linkage shaft and two identical wheel discs, a plurality of teeth are fixedly arranged on the outer edge of the wheel disc, a tooth space is arranged between two adjacent teeth, a plurality of L-shaped anti-drop blocks are arranged on one side of the two wheel discs which are opposite to each other, one end of each anti-drop block is positioned on one side of the tooth space, an embedding groove is arranged on one side of each anti-drop block, a guide roller is arranged in each embedding groove, the guide roller is rotationally matched with the embedding groove, both sides of the teeth are provided with clamping grooves, clamping blocks are arranged in the clamping grooves, springs are arranged in the clamping grooves, one ends of the springs are fixedly connected with one sections of the clamping blocks, the other ends of the springs are fixedly connected with the inner walls of the clamping grooves, one ends of the clamping blocks are fixedly provided with elastic blocks, the elastic blocks are hemispherical, the structure of the, thereby preventing the chain from falling off from the other side of the wheel disc and enabling the wheel disc to work better.

Description

Anti-drop chain transmission double chain wheel

Technical Field

The utility model relates to a sprocket technical field, in particular to anticreep chain drive double sprocket.

Background

Chain transmission is a transmission mode for transmitting the motion and power of a driving sprocket with a special tooth form to a driven sprocket with a special tooth form through a chain. The chain transmission has many advantages, compared with the belt transmission, the chain transmission has no elastic sliding and slipping phenomena, the average transmission ratio is accurate, the work is reliable, and the efficiency is high; the transmission power is large, the overload capacity is strong, and the transmission size under the same working condition is small; the required tension is small, and the pressure acting on the shaft is small; can work in severe environments such as high temperature, humidity, dustiness, pollution and the like.

Sprocket and chain among the prior art take place to take off the chain easily at the transmission in-process, not only influence the life of sprocket and chain, can influence the stability when chain and sprocket are connected moreover, produce great noise easily. In view of the above problems, a solution is proposed as follows.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an anticreep chain drive double sprocket has and can prevent that the chain from droing, makes the sprocket can steady driven advantage.

The above technical purpose of the present invention can be achieved by the following technical solutions:

an anti-drop chain transmission double sprocket comprises a linkage shaft and two identical wheel discs, wherein connecting holes are formed in the centers of the two wheel discs, two annular grooves are formed in the linkage shaft, the other two connecting holes are respectively located in the two annular grooves and fixedly connected with the two annular grooves, a plurality of teeth are fixedly arranged on the outer edge of each wheel disc, a tooth groove is formed between every two adjacent teeth, a plurality of L-shaped anti-drop blocks are arranged on the two sides of the wheel discs, which are opposite to each other, one end of each anti-drop block is fixed with the side wall of the wheel disc, the other end of each anti-drop block is located on one side of the tooth groove, one side of each anti-drop block is provided with an embedded groove, a guide roller is arranged in each embedded groove, the two ends of each guide roller are respectively inserted into the two sides of each embedded groove and are in running fit with the embedded grooves, and the two sides of the, the clamping groove is internally provided with a clamping block, the clamping block is in sliding fit with the clamping groove, a spring is arranged in the clamping groove, one end of the spring is fixedly connected with one section of the clamping block, the other end of the spring is fixedly connected with the inner wall of the clamping groove, one end of the clamping block is fixedly provided with an elastic block, and the elastic block is hemispherical.

Adopt above-mentioned technical scheme, there is the space between two rim plates, the space can let two chains overlap simultaneously on two rim plates, and can not influence each other, the space is less than the thickness of single chain, thereby can prevent that the chain from droing from between two rim plates, overlap the chain on the tooth of a rim plate, one side that another rim plate was kept away from to the anticreep piece card at the chain, thereby prevent that the chain from breaking away from this side, the chain can support on the elastic block after blocking to the sprocket in, and promote the elastic block, make the elastic block can push the fixture block into the draw-in groove in, the fixture block is with the spring compression, the spring produces a thrust to the fixture block, make the fixture block can promote the elastic block, thereby make the elastic block can support on the inner wall of chain, prevent.

Preferably, the linkage shaft is provided with a connecting channel, the connecting channel is symmetrically provided with two key grooves, and the inner walls of the key grooves are rough.

By adopting the technical scheme, the external power shaft is inserted into the connecting channel, the lug is arranged on the side arm of the power shaft and can be clamped in the key groove, so that when the power shaft rotates, the two wheel discs can be driven to rotate, and the chain wheel can normally work.

Preferably, three threaded holes are formed in the side wall of the linkage shaft, adjusting screws are inserted into the threaded holes and matched with the threaded holes, fastening blocks are arranged at one ends of the adjusting screws, rotating pieces are fixedly arranged at one ends of the adjusting screws, rotating grooves are formed in one sides of the fastening blocks, and the rotating pieces are located in the rotating grooves and are in running fit with the rotating grooves.

By adopting the technical scheme, after the external power shaft is inserted into the connecting channel, the adjusting screws are rotated, and the three adjusting screws can drive the fastening blocks to move, so that the three fastening blocks can be tightly supported on the side wall of the power shaft, the power shaft is fixed, the power shaft is prevented from shaking in the connecting channel due to the fact that the power shaft is too small, and the power shaft is fixed.

Preferably, a fastening pad is fixedly arranged on one side, away from the adjusting screw, of the fastening block, and the fastening pad has elasticity.

By adopting the technical scheme, the fastening pad can better fix the power shaft by the fixing block, so that the power shaft is prevented from vibrating.

Preferably, the outer side of the guide roller is sleeved with an anti-abrasion pad, and the anti-abrasion pad has elasticity.

Adopt above-mentioned technical scheme, the abrasionproof pad can prevent the deflector roll wearing and tearing, increases the durability of deflector roll.

Preferably, a plurality of air holes are formed in the two wheel discs, a plurality of fixing columns are arranged between the two wheel discs, and two ends of the fixing columns are fixedly connected with one sides of the two wheel discs opposite to each other respectively.

Adopt above-mentioned technical scheme, a plurality of fixed columns can increase the stability between two rim plates, make two rim plates can not shake when rotating to make the completion work that the sprocket can be better.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment;

FIG. 2 is a sectional view of the embodiment;

fig. 3 is an enlarged view of region a in fig. 2.

Reference numerals: 1. a linkage shaft; 2. a wheel disc; 3. teeth; 4. an anti-drop block; 5. a guide roller; 6. a clamping block; 7. a spring; 8. an elastic block; 9. a keyway; 10. adjusting the screw rod; 11. a fastening block; 12. rotating the sheet; 13. a fastening pad; 14. an anti-wear pad; 15. air holes are formed; 16. and (5) fixing the column.

Detailed Description

The following is only the preferred embodiment of the present invention, the protection scope is not limited to this embodiment, and all technical solutions belonging to the idea of the present invention should belong to the protection scope of the present invention. It should also be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and such modifications and decorations should also be regarded as the protection scope of the present invention.

As shown in fig. 1 to 3, the anti-drop chain transmission double sprocket comprises a linkage shaft 1 and two identical wheel discs 2, wherein the centers of the two wheel discs 2 are both provided with a connecting hole. The linkage shaft 1 is provided with two ring grooves, and the other two connecting holes are respectively positioned in the two ring grooves and fixedly connected with the two ring grooves. The distance between two rim plates 2 can let two chains normally drive with two rim plates 2 respectively, and is less than the thickness of single chain to make the chain on the rim plate 2 can not drop from between two rim plates 2.

The outer edge of the wheel disc 2 is fixedly provided with a plurality of teeth 3, and the teeth 3 are matched with the chain to realize transmission with the chain. A tooth groove is arranged between two adjacent teeth 3, and a plurality of L-shaped anti-falling blocks 4 are fixedly arranged on the opposite sides of the two wheel discs 2. One side of every tooth's socket all has an anticreep piece 4, and anticreep piece 4 can keep off the opposite side at the chain, prevents that the chain from droing.

One side of anticreep piece 4 is equipped with the caulking groove, is equipped with deflector roll 5 in the caulking groove, deflector roll 5 and caulking groove normal running fit. One side of the guide roller 5 is connected with the side wall of the chain, and in a normal state, when the wheel disc 2 rotates to drive the chain to move, the guide roller 5 can rotate along with the wheel disc 2 and does not move relative to the chain. When the chain is bent along with the wheel disc 2, slight relative movement can occur between the chain and the anti-falling block 4, and at the moment, the guide roller 5 can rotate to reduce the friction of the chain to the anti-falling block 4. The outer side of the guide roller 5 is sleeved with an anti-wear pad 14, and the anti-wear pad 14 has elasticity. The wear pad 14 is made of a soft material, and can prevent hard contact between the guide roller 5 and the chain, thereby preventing abrasion between the chain and the guide roller 5.

The both sides that tooth 3 kept away from 2 one ends of rim plate all are equipped with the draw-in groove, are equipped with fixture block 6 in the draw-in groove. A spring 7 is arranged in the clamping groove, one end of the spring 7 is fixedly connected with one section of the clamping block 6, and the other end of the spring 7 is fixedly connected with the inner wall of the clamping groove. When the chain is sleeved on the teeth 3, the clamping block 6 is pressed into the clamping groove by the chain, so that the spring 7 is compressed by the clamping block 6. The spring 7 exerts an elastic force on the catch 6. One end of the clamping block 6 is fixedly provided with a hemispherical elastic block 8. The clamping block 6 can drive the elastic block 8 to move under the action of the elastic force of the spring 7, so that the elastic block 8 can tightly abut against the inner wall of the chain to prevent the chain from falling off.

Be equipped with a plurality of fixed columns 16 between two rim plates 2, fixed column 16 can be connected two rim plates 2, makes the structure between two rim plates 2 more stable to can not produce vibrations when making two rim plates 2 rotate.

A plurality of air holes 15 are formed in the two wheel discs 2, and the air holes 15 can increase air circulation, so that the heat dissipation efficiency of the wheel discs 2 is increased, and the wheel discs 2 are prevented from heating.

The linkage shaft 1 is provided with a connecting channel, and an external power shaft is inserted into the connecting channel. Three threaded holes are formed in the side wall of the linkage shaft 1, adjusting screws 10 are inserted into the threaded holes, and fastening blocks 11 are arranged at one ends of the adjusting screws 10. Three adjusting screw 10 are rotated, and three adjusting screw 10 can drive fastening block 11 to move, so that fastening block 11 can tightly support on the side wall of the power shaft, and the power shaft is prevented from shaking. A fastening pad 13 is fixedly arranged on one side of the fastening block 11 far away from the adjusting screw 10, and the fastening pad 13 has elasticity. The fastening pad 13 can increase the friction between the fastening block 11 and the power shaft, so as to fix the power shaft better.

Two key grooves 9 are symmetrically arranged on the connecting channel, and the inner walls of the key grooves 9 are rough. Two bulges are arranged on the side wall of the power shaft and clamped in the key groove 9, so that the power shaft can better drive the linkage shaft 1 to rotate when rotating. The linkage shaft 1 can drive the two wheel discs 2 to rotate, so that the chain is driven.

Claims

1. The utility model provides an anticreep chain transmission double sprocket, includes universal driving shaft (1) and two the same rim plates (2), its characterized in that, two the center department of rim plate (2) has all seted up the connecting hole, be equipped with two annuluses on universal driving shaft (1), two in addition the connecting hole is located two annuluses respectively, and with two annular fixed connection, set firmly a plurality of tooth (3) on the outer fringe of rim plate (2), adjacent two be equipped with the tooth's socket between tooth (3), two one side that rim plate (2) carried on the back mutually all is equipped with the anticreep piece (4) of a plurality of L shapes, the one end of anticreep piece (4) is fixed with the lateral wall of rim plate (2), the other end of anticreep piece (4) is located one side of tooth's socket, every one side of tooth's socket all has an anticreep piece (4), one side of anticreep piece (4) is equipped with the caulking groove, the both ends of deflector roll (5) are pegged graft respectively in the both sides of caulking groove, and with caulking groove normal running fit, the both sides that rim plate (2) one end was kept away from in tooth (3) all are equipped with the draw-in groove, be equipped with fixture block (6) in the draw-in groove, fixture block (6) and draw-in groove sliding fit, be equipped with spring (7) in the draw-in groove, the one end of spring (7) and one section fixed connection of fixture block (6), the other end of spring (7) and the inner wall fixed connection of draw-in groove, the one end of fixture block (6) sets firmly elastic block (8), elastic block (8) are the hemisphere.

2. The anti-drop chain transmission double sprocket wheel as claimed in claim 1, wherein the linkage shaft (1) is provided with a connecting channel, the connecting channel is symmetrically provided with two key grooves (9), and the inner walls of the key grooves (9) are rough.

3. The anti-drop chain transmission double sprocket wheel as claimed in claim 1, wherein three threaded holes are formed in the side wall of the linkage shaft (1), an adjusting screw (10) is inserted into each threaded hole, the adjusting screw (10) is matched with the threaded holes, a fastening block (11) is arranged at one end of the adjusting screw (10), a rotating plate (12) is fixedly arranged at one end of the adjusting screw (10), a rotating groove is formed in one side of the fastening block (11), and the rotating plate (12) is located in the rotating groove and is in rotating fit with the rotating groove.

4. The chain drop prevention transmission double sprocket wheel as claimed in claim 3, wherein a fastening pad (13) is fixedly arranged on one side of the fastening block (11) far away from the adjusting screw (10), and the fastening pad (13) has elasticity.

5. The chain drop prevention transmission twin sprocket as claimed in claim 1, characterized in that the guide rollers (5) are externally sleeved with an anti-wear pad (14), the anti-wear pad (14) being elastic.

6. The anti-drop chain transmission double sprocket as claimed in claim 1, wherein a plurality of air holes (15) are formed on each of the two wheel discs (2), a plurality of fixing columns (16) are arranged between the two wheel discs (2), and two ends of each fixing column (16) are respectively and fixedly connected with one side of each wheel disc (2) opposite to the other side.