Tension adjusting mechanism for knife pouch chain

Abstract

The utility model relates to the technical field of chain tension adjusting, in particular to a knife pouch chain tension adjusting mechanism, which comprises at least two guide rings arranged on a mounting plate at the bottom of a body frame, and each guide ring comprises a central through hole axially arranged in a penetrating manner and a limiting edge far away from one end of a driven wheel; the elastic piece is arranged on the guide ring in a sleeving mode and located on the shaft section between the body frame and the driven wheel. The two guide rings penetrate through the mounting plate and abut against the mounting face of the driven wheel, bolts are connected with the driven wheel through the center through holes of the guide rings, one end of the elastic piece abuts against the mounting plate, and the other end of the elastic piece abuts against the mounting face of the driven wheel. Through the combination of the guide ring and the elastic piece, the tension of the chain can be automatically adjusted, the guide ring limits lateral vibration of the spring, vibration and noise caused by lateral bending are reduced, and therefore the service life of the chain is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of chain tensioning force adjustment, in particular to a knife sleeve chain tensioning force adjustment mechanism. Background Art

[0002] A chain tool magazine consists of a chain and several sprockets. The chain uses these sprockets as fulcrums to change its trajectory. One of the sprockets is driven by a motor, which in turn drives the chain. During the chain's operation, the chain tension needs to be adjusted to ensure that the tension of the unsteered and steered chain segments remains uniform.

[0003] In the prior art, the tension adjustment mechanism changes the distance between the adjustment block and the abutment portion of the steering sprocket by driving the screw forward or backward relative to the fixed block, and further changes the compression amount of the flat wire spring, so that the chain tension adjustment mechanism can better adapt to the tension of the chain, effectively maintain the balance of the chain tension, and improve the jamming phenomenon caused by uneven tension of the chain of the existing chain tool magazine.

[0004] However, the flat wire spring is directly mounted on the bolt. During the compression process, there is a large gap between the bolt diameter and the inner hole of the spring, and the middle part of the spring may bend sideways. This bending will cause the spring to vibrate and make noise during the compression and release process, which will shorten the service life of the chain over a long period of time. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a knife sleeve chain tensioning force adjustment mechanism to effectively solve the problems in the background technology.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a tool sleeve chain tensioning force adjustment mechanism is arranged on the mounting plate of the driven wheel of the tool magazine body frame, comprising:

[0007] At least two guide rings are provided on the mounting plate at the bottom of the main body frame, each including a central through hole extending axially therethrough and a limiting edge away from one end of the driven wheel;

[0008] an elastic member, sleeved on the guide ring and located on the shaft section between the main body frame and the driven wheel;

[0009] Among them, the two guide rings pass through the mounting plate and abut against the mounting surface of the driven wheel, the bolts are connected to the driven wheel through the center through hole of the guide ring, one end of the elastic member abuts against the mounting plate, and the other end abuts against the mounting surface of the driven wheel.

[0010] Furthermore, a wear-resistant sleeve is provided in the through hole of the mounting plate for the guide ring to pass through.

[0011] Furthermore, the mounting plate is provided with a stepped surface facing the driven wheel.

[0012] Furthermore, guide edges are extended from both ends of the driven wheel located on the mounting surface toward the main body frame.

[0013] Furthermore, there is a distance between the inner side surface of the guide edge and the side surface of the step surface.

[0014] Furthermore, the guide edge is tangent to the outer circle of the driven wheel and is parallel to the two guide side surfaces of the main body frame.

[0015] Furthermore, the elastic member adopts a spring structure.

[0016] Furthermore, the elastic member adopts a disc spring structure.

[0017] Furthermore, a groove for embedding the guide ring is provided on the mounting surface of the driven wheel.

[0018] The beneficial effects of the present invention are as follows: in the present invention, the tension of the chain can be automatically adjusted through the combination of the guide ring and the elastic member, and the guide ring limits the lateral vibration of the spring. When the elastic member is compressed, it is not easy to cause lateral bending, which reduces the vibration and noise caused by lateral bending, thereby extending the service life of the chain. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 This is a structural diagram of the tensioning force adjustment mechanism of the knife sleeve chain in an embodiment of the present utility model;

[0021] Figure 2 This is a cross-sectional view of the knife sleeve chain tensioning force adjustment mechanism in an embodiment of the present utility model;

[0022] Figure 3 for Figure 2 A partial enlarged view of point A.

[0023] Figure numerals: 01, driving wheel; 02, main body frame; 03, driven wheel; 1, guide ring; 11, center through hole; 12, limiting edge; 2, elastic part; 3, wear-resistant sleeve; 4, step surface; 5, guide edge; 6, groove. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0025] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which this invention pertains. The terms used in this specification are for the purpose of describing specific embodiments only and are not intended to limit this invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] like Figures 1 to 3 The tool sleeve chain tensioning force adjustment mechanism shown is provided on the mounting plate of the tool magazine body frame 02 on which the driven wheel 03 is mounted, and includes:

[0028] At least two guide rings 1 are provided on the mounting plate at the bottom of the main body frame 02. The two guide rings 1 pass through the mounting plate and abut against the mounting surface of the driven wheel 03. The guide rings 1 include a central through hole 11 extending axially therethrough and a limiting edge 12 at one end away from the driven wheel 03.

[0029] The elastic member 2 is sleeved on the guide ring 1 and is located on the shaft section between the main frame 02 and the driven wheel 03;

[0030] Among them, one end of the elastic member 2 abuts against the mounting plate, and the other end abuts against the mounting surface of the driven wheel 03. The elastic member 2 is used to move the guide ring 1 toward or away from the driving wheel 01 to adjust the distance between the driving wheel 01 and the driven wheel 03.

[0031] When the system load changes, the elastic member 2 automatically adjusts its compression according to the load change, thereby regulating the chain tension and maintaining stable system operation. In the present invention, the combination of the guide ring 1 and the elastic member 2 can achieve automatic adjustment of the chain tension. The guide ring 1 also limits the lateral vibration of the spring. When the elastic member 2 is compressed, it is less likely to cause lateral bending, reducing the vibration and noise caused by lateral bending, thereby extending the service life of the chain.

[0032] In the preferred embodiment, a wear-resistant sleeve 3 is provided in the through hole of the mounting plate for the guide ring 1 to pass through, which can reduce the direct contact between the guide ring 1 and the mounting plate. Since the wear-resistant sleeve 3 is usually made of high hardness and high wear-resistant materials, they can effectively resist wear and extend the service life of the guide ring 1 and the mounting plate.

[0033] In the present invention, a step surface 4 is provided on the mounting plate facing the driven wheel 03, which increases the contact area between the guide ring 1 and the mounting plate. The larger contact area can reduce the vibration of the guide ring 1 under high load or high-speed movement, thereby improving the sliding stability and reducing noise.

[0034] On the basis of the above solution, guide edges 5 are extended from both ends of the driven wheel 03 on the mounting surface toward the main frame 02. The guide edges 5 reduce the gap between the driven wheel 03 and the mounting plate, achieving a bridging effect, so that the rollers of the chain can be driven smoothly.

[0035] As a preferred embodiment, there is a gap between the inner side of the guide edge 5 and the side of the step surface 4. The guide edge 5 is tangent to the outer circle of the driven wheel 03 and parallel to the two guide side surfaces of the main frame 02, so that the chain can transition smoothly.

[0036] In the preferred embodiment of the present invention, the elastic member 2 adopts a spring structure, which can provide stable and adjustable tension, absorb vibration and impact, ensure the smooth operation of the chain, and improve the efficiency and life of the entire system.

[0037] In another embodiment, the elastic member 2 is a disc spring structure. The disc spring can be combined in different ways (such as aligned, overlapped or compounded) to obtain different load-bearing capacities to meet the tension adjustment requirements of the knife chain.

[0038] In a preferred embodiment of the present invention, a groove 6 for embedding the guide ring 1 is provided on the mounting surface of the driven wheel 03, which can accurately position the driven wheel 03, avoid misalignment, and improve the positioning accuracy of the installation.

[0039] Those skilled in the art should understand that the present invention is not limited to the above-described embodiments. The above-described embodiments and the specification are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A tool sleeve chain tensioning force adjustment mechanism, arranged on a mounting plate of a tool magazine body frame (02) on which a driven wheel (03) is mounted, characterized in that: include: At least two guide rings (1) are provided on the mounting plate at the bottom of the main body frame (02), and include a central through hole (11) extending axially therethrough and a limiting edge (12) at one end away from the driven wheel (03); An elastic member (2) is sleeved on the guide ring (1) and is located on the shaft section between the main body frame (02) and the driven wheel (03); The two guide rings (1) pass through the mounting plate and abut against the mounting surface of the driven wheel (03); the bolts are connected to the driven wheel (03) through the central through hole (11) of the guide ring (1); one end of the elastic member (2) abuts against the mounting plate, and the other end abuts against the mounting surface of the driven wheel (03).

2. The knife sheath chain tensioning force adjustment mechanism according to claim 1, characterized in that: A wear-resistant sleeve (3) is provided in the through hole of the mounting plate through which the guide ring (1) passes.

3. The knife sheath chain tensioning force adjustment mechanism according to claim 1, characterized in that: The mounting plate is provided with a stepped surface (4) facing the driven wheel (03).

4. The knife sheath chain tensioning force adjustment mechanism according to claim 3, characterized in that: The driven wheel (03) is located at both ends of the mounting surface and extends a guide edge (5) in the direction toward the main body frame (02).

5. The knife sheath chain tensioning force adjustment mechanism according to claim 4, characterized in that: There is a distance between the inner side surface of the guide edge (5) and the side surface of the step surface (4).

6. The knife sheath chain tensioning force adjustment mechanism according to claim 4, characterized in that: The guide edge (5) is tangent to the outer circle of the driven wheel (03) and is parallel to the two guide side surfaces of the main body frame (02).

7. The knife sheath chain tensioning force adjustment mechanism according to claim 1, characterized in that: The elastic member (2) adopts a spring structure.

8. The knife sheath chain tensioning force adjustment mechanism according to claim 1, characterized in that: The elastic member (2) adopts a disc spring structure.

9. The knife sheath chain tensioning force adjustment mechanism according to claim 1, characterized in that: A groove (6) for the guide ring (1) to be embedded is provided on the mounting surface where the driven wheel (03) is located.

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