CN113309820A

CN113309820A - High-speed high-load mute tow chain

Info

Publication number: CN113309820A
Application number: CN202110790546.1A
Authority: CN
Inventors: 孙驰; 张军营
Original assignee: ZHEJIANG JINFULONG MACHINE TOOL ACCESSORIES CO Ltd
Current assignee: ZHEJIANG JINFULONG MACHINE TOOL ACCESSORIES CO Ltd
Priority date: 2021-07-13
Filing date: 2021-07-13
Publication date: 2021-08-27

Abstract

The invention provides a high-speed high-load mute drag chain, which is formed by splicing a plurality of chain links, wherein two adjacent chain links are rotationally connected through a connecting shaft assembly, and the chain links comprise: a link body; and the elastic piece is detachably arranged on the chain link main bodies and is elastically deformed under pressure when two adjacent chain link main bodies rotate. The elastic piece can be made of a material with better elasticity, so that when the drag chain moves at a high speed, the elastic piece can improve larger buffer force, thereby realizing silence; the elastic part has and receives the drive of chain link main part, the first deformation state of moving towards the direction of being close to another chain link main part to and continue the second deformation state of deformation after offseting with another chain link main part, also the impact strength that the elastic part can the secondary buffering tow chain, compare with prior art, the silence effect is better, V-arrangement or O shape second elastic component have simple structure, low in production cost's advantage.

Description

High-speed high-load mute tow chain

Technical Field

The invention relates to the technical field of drag chains, in particular to a high-speed high-load mute drag chain.

Background

The drag chain is suitable for reciprocating motion occasions, is widely applied in the field of automation equipment such as numerical control machine tools, mechanical arms, hoisting and transporting equipment, automatic warehouses and the like, and can play a role in traction and protection of built-in cables, oil pipes, air pipes, water pipes and the like.

The tow chain is formed by a plurality of chain links concatenation, and two adjacent chain links can rotate relatively, and the stopper of one of them chain link inserts the spacing inslot to another chain link, and the spacing groove is used for injecing the rotation orbit of stopper, and when the high-speed reciprocating motion of tow chain, the stopper can strike with the both sides inner wall of spacing groove to produce the noise.

In order to solve the problem, a plastic elastic sheet is integrally formed at the position, adjacent to the two side walls, of the limiting groove, and the plastic elastic sheet can elastically abut against the limiting block, so that impact force is buffered, and noise reduction can be realized to a certain extent. However, since the plastic elastic sheet and the link main body are integrally formed, that is, the two are made of the same material, in order to ensure that the tow chain realizes high load, the strength of the material is required to be high, but the elasticity is insufficient, so that the noise reduction effect of the plastic elastic sheet is general; in addition, after a long time of use, the plastic spring plate is easily broken, resulting in the need to replace the chain link as a whole, which increases maintenance costs.

Disclosure of Invention

Therefore, the technical problem to be solved by the invention is to overcome the defects of general noise reduction effect and high maintenance cost of the drag chain in the prior art, so that the high-speed high-load mute drag chain with good noise reduction effect and low maintenance cost is provided.

The invention provides a high-speed high-load mute drag chain, which is formed by splicing a plurality of chain links, wherein two adjacent chain links are rotatably connected through a connecting shaft assembly, each chain link comprises a chain link main body and an elastic piece, and each elastic piece is detachably arranged on the corresponding chain link main body and is elastically deformed under pressure when the two adjacent chain link main bodies rotate.

The elastic piece is provided with a first deformation state which is driven by the chain link main body and moves towards the direction close to the other chain link main body, and a second deformation state which is continuously deformed after being abutted against the other chain link main body.

The elastic piece comprises a first elastic part and a V-shaped or O-shaped second elastic part arranged at the end part of the first elastic part.

The elastic piece comprises an elastic main body, a first elastic arm and a second elastic arm which are respectively arranged on two sides of the elastic main body, wherein when the chain link main body rotates clockwise relative to the other chain link main body, the first elastic arm is pressed to elastically deform; when the chain link main body rotates anticlockwise relative to the other chain link main body, the second elastic arm is pressed to be elastically deformed.

The elastic main body is detachably connected with the chain link main body through a plug-in structure, and the plug-in structure comprises a first slot arranged on one side of the chain link main body and the elastic main body and a plug block arranged on the other side and capable of being in adaptive connection with the first slot.

The elastic piece is an elastic plastic piece or a metal reed.

The connecting shaft assembly comprises at least one connecting shaft arranged on one side of each of the two adjacent chain link main bodies, and a mounting groove or a mounting hole which is arranged on the other side of each of the two adjacent chain link main bodies and is in adaptive connection with the connecting shaft.

The connecting shaft is formed on the inner side surface of the chain link main body and is provided with a first slot suitable for mounting the elastic piece and a through hole for the first elastic arm and the second elastic arm to extend out.

Be equipped with buckle structure between two adjacent chain link main parts, buckle structure including locate two adjacent chain link main parts one side detain the platform to and locate the other party with detain the elastic buckle of platform joint.

The chain link includes the chain link main part of two relative settings to and connect two the separation blade of chain link main part, the one end of separation blade through the pivot subassembly with the chain link main part links to each other, the other end pass through buckle structure and another the lock of chain link main part is connected.

The pivot subassembly includes: the two first rotating shaft parts are arranged at the end parts of the blocking pieces, and a first groove is formed between the two first rotating shaft parts; the two second grooves are arranged on the chain link main body and are in adaptive connection with the corresponding first rotating shaft parts, and a second convex block which can be in adaptive insertion connection with the first grooves is arranged between the two second grooves; the first limiting structure is arranged between the first groove and the second lug and comprises a first limiting block arranged on the bottom wall of the first groove and a first limiting groove arranged on the inner side surface of the second lug and capable of limiting the motion track of the first limiting block.

The buckle structure comprises a clamping block arranged on one side of the separation blade and the chain link main body, and a clamping groove arranged on the other side and connected with the clamping block in an adaptive mode.

And a second slot which is adjacent to the clamping groove is arranged on the chain link main body, and a screwdriver is inserted into the second slot to pry up the blocking piece.

And a second limiting structure is arranged between every two adjacent chain link main bodies and comprises a second limiting block and a third limiting block, wherein the second limiting block is arranged on the outer side surface of each chain link main body and is respectively arranged on two sides of the rotation center of the chain link main body, and the third limiting block is arranged on the outer side surface of each chain link main body and can be abutted against the corresponding second limiting block. The technical scheme of the invention has the following advantages:

1. according to the high-speed high-load mute tow chain, the elastic piece is detachably arranged on the chain link main body, and the elastic piece can be made of a material with better elasticity, so that when the tow chain moves at a high speed, the elastic piece can improve larger buffer force, and therefore muting is achieved.

2. According to the high-speed high-load mute tow chain provided by the invention, the elastic piece is provided with the first deformation state which is driven by the chain link main body and moves towards the direction close to the other chain link main body, and the second deformation state which is continuously deformed after being abutted against the other chain link main body, namely the elastic piece can buffer the impact force of the tow chain for the second time.

3. The high-speed high-load mute tow chain provided by the invention has the advantages that the elastic piece comprises the first elastic part and the V-shaped or O-shaped second elastic part arranged at the end part of the first elastic part, the first elastic part is mainly elastically deformed to buffer the impact force in the first deformation state, the V-shaped or O-shaped second elastic part can be continuously deformed to further buffer the impact force in the second deformation state, and the mute is realized.

4. According to the high-speed high-load mute drag chain, the elastic main body is detachably connected with the chain link main body through the insertion structure, and the insertion block and the first insertion groove are arranged, so that the elastic piece is prevented from deviating relative to the chain link main body, and the buffering effect is ensured.

5. According to the high-speed high-load mute drag chain, the buckle structure is arranged between the two adjacent chain link main bodies, so that the two chain link main bodies are locked, the assembly is firmer, and the reliability is improved.

6. The rotating shaft assembly comprises a first rotating shaft part, a first groove, a second groove and a second bump, the first rotating shaft part, the second groove, the second bump and the first groove are correspondingly spliced during assembly, a first limiting block on the bottom wall of the first groove is extruded into a first limiting groove under the pressing action of a hand and can move relative to the first limiting groove, and therefore a blocking piece is prevented from being separated from a chain link main body (the blocking piece and the chain link main body can be separated only by applying a certain external force).

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a first schematic view of two adjacent links of the present invention;

FIG. 2 is a cross-sectional view of FIG. 1;

FIG. 3 is a second schematic view of two adjacent links; (ii) a

FIG. 4 is a first cross-sectional view of FIG. 3;

FIG. 5 is a schematic structural view of a first embodiment of the elastic member;

FIG. 6 is an exploded view of two adjacent links;

FIG. 7 is a second cross-sectional view of FIG. 3;

FIG. 8 is a schematic view of the assembly of the elastic member (second embodiment) with the link;

FIG. 9 is a schematic structural view of a second embodiment of the elastic member;

FIG. 10 is a schematic view of the assembly of the elastic member (third embodiment) with the link;

FIG. 11 is a schematic structural view of a third embodiment of the elastic member;

FIG. 12 is an exploded view of a single link;

FIG. 13 is a schematic view of the removal of the screwdriver from the link;

FIG. 14 is a cross-sectional view of FIG. 13;

fig. 15 is a cross-sectional view of the flap in an open state;

FIG. 16 is an exploded view of the flapper and link body;

FIG. 17 is a perspective view of the link body;

fig. 18 is a perspective view of a high speed high load silent tow chain.

Description of reference numerals: 1. a link body; 10. mounting grooves; 11. a first slot; 12. a connecting shaft; 13. buckling a platform; 14. elastic buckle; 15. a second groove; 16. a second bump; 17. a first limit groove; 18. a card slot; 19. a second slot; 2. an elastic member; 20. an elastic body; 21. a first resilient arm; 22. a second resilient arm; 23. a first elastic part; 24. a second elastic part; 25. inserting a block; 3. a baffle plate; 31. a first shaft portion; 32. a first groove; 33. a first stopper; 34. a clamping block; 4. a second limiting block; 5. a third limiting block; 6. a first bump; 7. and a stop block.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Examples

The embodiment provides a high-speed high-load mute drag chain which is formed by splicing a plurality of chain links, wherein two adjacent chain links are rotatably connected through a connecting shaft assembly, as shown in fig. 1 to 4, the chain links comprise a chain link main body 1, an elastic piece 2 and a baffle 3.

And the elastic pieces 2 are detachably arranged on the inner side surfaces of the link main bodies 1 and elastically deform under pressure when two adjacent link main bodies 1 rotate. The elastic member 2 has a first deformation state (as shown in fig. 2) driven by the link body 1 and moving toward the other link body 1, and a second deformation state (as shown in fig. 4) continuing to deform after abutting against the other link body 1. Because the elastic part 2 is arranged on the inner side surface of the chain link main body 1, hidden installation is realized, and the service life is prolonged.

An elastic member 2, as shown in fig. 5, including an elastic body 20, and a first elastic arm 21 and a second elastic arm 22 respectively disposed at two sides of the elastic body 20, wherein when the link body 1 rotates clockwise relative to the other link body 1, the first elastic arm 21 is pressed to be elastically deformed; when the link body 1 is rotated counterclockwise with respect to the other link body 1, the second elastic arm 22 is elastically deformed by being pressed. Each of the first elastic arm 21 and the second elastic arm 22 includes a first elastic portion 23 and a V-shape provided at an end of the first elastic portion 23. The elastic main body 20 is detachably connected with the chain link main body 1 through an inserting structure, and the inserting structure comprises a first inserting groove 11 arranged on one side of the chain link main body 1 and the elastic main body 20 and an inserting block 25 arranged on the other side and capable of being in adaptive connection with the first inserting groove 11. In this embodiment, the material of the elastic member 2 is DuPont PA66, or a metal spring. One of the chain link main bodies 1 is provided with a first lug 6 inserted into a groove of the adjacent chain link main body 1, a stop dog 7 is arranged in the groove, and a first elastic arm 21 and a second elastic arm 22 are arranged between the first lug 6 and the stop dog 7 and are driven by the first lug 6 to elastically deform.

As an alternative embodiment, the second elastic portion 24 is O-shaped, as shown in fig. 8 and 9.

As an alternative embodiment, as shown in fig. 10 and 11, the elastic member 2 is a metal spring, and the angle between the first elastic portion 23 and the second elastic portion 24 is an obtuse angle.

And the link main body 1 is rotatably connected with another adjacent link main body 1 through a rotating shaft assembly. As shown in fig. 6 and 7, the connecting shaft assembly comprises two connecting shafts 12 arranged on one side of two adjacent chain link main bodies 1 and mounting grooves or mounting holes which are arranged on the other side of the two adjacent chain link main bodies and are in adaptive connection with the connecting shafts 12, and the double connecting shaft assembly is arranged, so that the assembly is firmer, the load-carrying performance and the overhead performance of the drag chain can be greatly increased, and the high-load operation is realized. The connecting shaft 12 is formed on the inner side surface of the link body 1, and has a first slot 11 adapted to mount the elastic member 2, and a through hole for extending the first elastic arm 21 and the second elastic arm 22. Be equipped with buckle structure between two adjacent chain link main parts 1, buckle structure is including locating the platform 13 of detaining of two adjacent chain link main parts 1 one side to and locate the other party with detain the elasticity buckle 14 of platform 13 joint. In this embodiment, the material of link body 1 is PA6 GF 30. Because link to each other through pivot subassembly between the chain link main part 1, and the buffering is through elastic component 2, connect more reliably like this, it is effectual to load.

And the baffle 3 is used for connecting the two oppositely arranged chain link main bodies 1. One end of the separation blade 3 is connected with the chain link main body 1 through a rotating shaft assembly, and the other end of the separation blade is connected with the other chain link main body 1 in a buckling mode through a buckling structure.

As shown in fig. 13 to 17, the rotary shaft assembly includes: two first rotating shaft parts 31 arranged at the end parts of the baffle plates 3, wherein a first groove 32 is arranged between the two first rotating shaft parts 31; two second grooves 15, which are arranged on the link body 1 and are adapted to and connected with the corresponding first rotating shaft parts 31, and a second projection 16 which can be adapted to and inserted into the first groove 32 is arranged between the two second grooves 15; the first limiting structure is arranged between the first groove 32 and the second bump 16 and comprises a first limiting block 33 arranged on the bottom wall of the first groove 32 and a first limiting groove 17 arranged on the inner side surface of the second bump 16 and capable of limiting the motion track of the first limiting block 33.

As shown in fig. 14 and 15, the locking structure includes a locking block 34 provided on one of the stopper 3 and the link body 1, and a locking groove 18 provided on the other and adapted to be connected to the locking block 34. A second slot 19 arranged adjacent to the clamping groove 18 is arranged on the link main body 1, and a screwdriver is inserted into the second slot 19 to pry up the blocking piece 3.

Two adjacent be equipped with second limit structure between the chain link main part 1, second limit structure is including locating 1 lateral surface of chain link main part, and divide the second stopper 4 of locating its rotation center both sides to and locate another 1 lateral surface of chain link main part, and can with correspond third stopper 5 that second stopper 4 offseted.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims

1. A high-speed high-load mute drag chain is formed by splicing a plurality of chain links, and is characterized in that two adjacent chain links are rotationally connected through a connecting shaft assembly, and each chain link comprises:

a link body (1);

and the elastic pieces (2) are detachably arranged on the chain link main bodies (1) and are elastically deformed under pressure when two adjacent chain link main bodies (1) rotate.

2. A high speed high load silent tow chain according to claim 1, wherein the elastic element (2) has a first deformation state driven by the link body (1) and acting in a direction approaching the other link body (1), and a second deformation state which continues to deform against the other link body (1).

3. A high speed high load silent chain according to claim 2, wherein said elastic member (2) comprises a first elastic part (23), and a V-shaped or O-shaped second elastic part (24) provided at the end of said first elastic part (23).

4. A high speed high load silent tow chain according to any of the claims 1-3, wherein the elastic member (2) comprises an elastic body (20), and a first elastic arm (21) and a second elastic arm (22) respectively arranged at two sides of the elastic body (20), wherein the first elastic arm (21) is pressed to be elastically deformed when the chain link body (1) rotates clockwise relative to the other chain link body (1); when the chain link main body (1) rotates anticlockwise relative to the other chain link main body (1), the second elastic arm (22) is pressed to be elastically deformed.

5. The silent high-speed and high-load tow chain according to claim 4, wherein the elastic body (20) is detachably connected to the link body (1) by means of an insertion structure, and the insertion structure comprises a first insertion groove (11) formed in one of the link body (1) and the elastic body (20), and an insertion block (25) formed in the other and fittingly connected to the first insertion groove (11).

6. High speed high load silent chain as claimed in claim 1, wherein said elastic element (2) is an elastic plastic element or a metal spring.

7. The silent high-speed and high-load tow chain according to claim 1, wherein the connecting shaft assembly comprises at least one connecting shaft (12) arranged on one side of two adjacent link main bodies (1) and an installation groove (10) or an installation hole which is arranged on the other side and is in adaptive connection with the connecting shaft (12).

8. A high speed high load silent chain according to claim 7, wherein said connecting shaft (12) is formed on the inner side of said link body (1) with a first slot (11) adapted to receive said elastic element (2) and a through hole for the first elastic arm (21) and the second elastic arm (22) to extend through.

9. The high-speed high-load silent drag chain as recited in claim 1, wherein a buckle structure is arranged between two adjacent chain link main bodies (1), and the buckle structure comprises a buckle platform (13) arranged on one side of the two adjacent chain link main bodies (1) and an elastic buckle (14) arranged on the other side and clamped with the buckle platform (13).

10. The high-speed high-load silent drag chain as recited in claim 1, wherein said chain link comprises two oppositely arranged chain link main bodies (1) and a blocking piece (3) connecting said two chain link main bodies (1), one end of said blocking piece (3) is connected with said chain link main body (1) through a rotating shaft assembly, and the other end is connected with the other chain link main body (1) through a buckling structure.

11. The high speed, high load silent chain as claimed in claim 10, wherein said spindle assembly comprises:

two first rotating shaft parts (31) arranged at the end parts of the baffle plates (3), wherein a first groove (32) is arranged between the two first rotating shaft parts (31);

the two second grooves (15) are arranged on the chain link main body (1) and are in adaptive connection with the corresponding first rotating shaft parts (31), and a second convex block (16) which can be in adaptive insertion connection with the first groove (32) is arranged between the two second grooves (15);

the first limiting structure is arranged between the first groove (32) and the second bump (16), and comprises a first limiting block (33) arranged on the bottom wall of the first groove (32) and a first limiting groove (17) arranged on the inner side surface of the second bump (16) and capable of limiting the motion track of the first limiting block (33).

12. The silent chain as claimed in claim 10, wherein the said snap structure comprises a block (34) disposed on one of the said catch (3) and the said link body (1), and a slot (18) disposed on the other and adapted to connect with the said block (34).

13. The high-speed high-load silent tow chain according to claim 12, wherein a second slot (19) is arranged on the link body (1) and adjacent to the slot (18), and a screwdriver is inserted into the second slot (19) to pry up the blocking plate (3).

14. The high-speed high-load silent drag chain as recited in claim 1, wherein a second limiting structure is arranged between two adjacent link main bodies (1), and the second limiting structure comprises second limiting blocks (4) respectively arranged on two sides of the rotation center of the link main bodies (1) and a third limiting block (5) arranged on the outer side of the other link main body (1) and capable of abutting against the corresponding second limiting block (4).