Chain adjusters and chain drive transport equipment

Abstract

The present invention provides a chain adjuster and chain drive transportation equipment, which relates to the technical field of chain adjustment, including a fixing part, a traction assembly, a wheel axle connecting part and a baffle. The fixing part is arranged at the opening of the U-shaped groove, and the traction assembly passes through the fixing part and extends into the U-shaped groove. The traction assembly can move along the U-shaped groove relative to the fixing part. A through hole is provided on the wheel axle connecting part, and the wheel axle connecting part is sleeved on the electric vehicle wheel axle through the through hole. The traction assembly extends into the U-shaped groove and is connected with the wheel axle connecting part. The traction assembly drives the electric vehicle wheel axle to move along the U-shaped groove through the wheel axle connecting part. The baffle is connected to the side of the wheel axle connecting part away from the traction assembly. An accommodating space for accommodating the wiring harness of the electric vehicle motor is provided between the baffle and the connecting plate, which alleviates the technical problems of low strength of the chain adjuster and inability to fix the wiring harness of the motor, improves the strength of the chain adjuster, and can fix and protect the wiring harness of the motor.

Description

Technical Field

[0001] The present invention relates to the technical field of chain adjustment, in particular to a chain adjuster and chain transmission transportation equipment. Background Art

[0002] A chain adjuster is a tool installed on an electric vehicle or bicycle to adjust the tightness of the chain. Since the chain is subjected to long-term tension during operation, the length of the chain unconsciously lengthens. The change in chain length will generate additional dynamic load, reduce transmission smoothness, accelerate chain wear, and in severe cases cause the chain to fall off the sprocket, affecting driving safety. Therefore, a chain adjuster is installed on electric vehicles or bicycles to facilitate users to adjust the tightness of the chain.

[0003] A connecting plate is provided on the side of the electric vehicle frame close to the sprocket, and a U-shaped groove is provided on the connecting plate. The electric vehicle wheel axle passes through the U-shaped groove, and the electric vehicle wheel axle can move in the U-shaped groove. The sprocket is sleeved on the wheel axle. The existing chain adjuster generally includes a nut, a stud and a wheel axle connecting part. The stud is connected to the wheel axle connecting part, and the wheel axle connecting part is sleeved on the wheel axle. By rotating the nut, the stud drives the wheel axle to move along the U-shaped groove to adjust the tightness of the chain.

[0004] However, the connection between the wheel axle connection part and the wheel axle of the existing chain adjuster is mostly set to an open type, which has low strength and easily causes deformation of the wheel axle connection part. In addition, the chain adjuster does not have the function of fixing the electric vehicle motor harness.

[0005] The information disclosed in this background technology section is only intended to deepen the understanding of the overall background technology of the present invention and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art known to those skilled in the art. Summary of the Invention

[0006] The object of the present invention is to provide a chain adjuster and chain drive transport equipment to alleviate the technical problems that the chain adjuster has low strength and cannot fix the motor wiring harness.

[0007] In order to solve the above technical problems, the technical solution provided by the present invention is:

[0008] The chain adjuster provided by the present invention comprises a fixing portion, a traction assembly, a wheel axle connecting portion and a baffle;

[0009] A connecting plate is provided on one side of the electric vehicle frame near the sprocket, and a U-shaped groove is provided on the connecting plate. The electric vehicle wheel shaft passes through the U-shaped groove, and a fixing portion is provided at the opening of the U-shaped groove. The fixing portion is connected to the connecting plate, and the traction assembly is connected to the fixing portion. The traction assembly passes through the fixing portion and extends into the U-shaped groove. The traction assembly can move along the U-shaped groove relative to the fixing portion.

[0010] The wheel axle connection part is arranged on the side of the connecting plate close to the sprocket of the electric vehicle. A through hole is provided on the wheel axle connection part, and the traction component extends into the U-shaped groove and is connected to the wheel axle connection part. The wheel axle connection part is sleeved on the wheel axle of the electric vehicle through the through hole. The traction component drives the wheel axle of the electric vehicle to move along the U-shaped groove through the wheel axle connection part to adjust the tightness of the chain.

[0011] The baffle is connected to a side of the wheel axle connecting portion away from the traction assembly, and an accommodating space is provided between the baffle and the connecting plate to confine the wiring harness of the electric vehicle motor within the accommodating space.

[0012] Further, the pulling assembly includes an adjustment end and a locking member;

[0013] The adjusting end passes through the fixing portion and extends into the U-shaped groove to be connected to the wheel axle connecting portion. The locking piece is arranged on the side of the fixing portion away from the U-shaped groove, and the locking piece is connected to the fixing portion. The adjusting end is used to drive the wheel axle connecting portion to move.

[0014] Furthermore, the chain adjuster further includes a first bent portion;

[0015] The first bending portion is arranged between the adjusting end and the wheel axle connecting portion, and two ends of the first bending portion are respectively connected to the adjusting end and the wheel axle connecting portion.

[0016] Furthermore, the baffle includes a baffle body and a protruding portion;

[0017] The baffle body is arranged on a side of the wheel shaft connecting portion close to the sprocket, and the baffle body is connected to an end of the wheel shaft connecting portion away from the traction assembly, and an accommodating space is provided between the baffle body and the connecting plate;

[0018] One end of the protrusion is connected to one end of the baffle body away from the wheel shaft connection part, and the other end of the protrusion extends toward the connection plate to limit the electric vehicle motor harness within the accommodating space.

[0019] Furthermore, the protrusion is provided in plurality;

[0020] The plurality of protrusions are all arranged on a side of the baffle body away from the wheel axle connection portion.

[0021] Furthermore, the chain adjuster further includes a second bent portion;

[0022] The second bent portion is arranged between the baffle body and the wheel axle connecting portion, and two ends of the second bent portion are respectively connected to the baffle body and the wheel axle connecting portion.

[0023] Furthermore, the axle connecting portion and the baffle are integrally formed.

[0024] Furthermore, the fixing portion, the traction assembly and the baffle are all provided with an anti-rust coating.

[0025] Furthermore, the electric vehicle wheel axle is connected to the connecting plate through a fastener and a fixing plate. The fastener is arranged at one end of the electric vehicle wheel axle close to the connecting plate, and the fixing plate is arranged between the fastener and the connecting plate.

[0026] The chain-driven transport tool provided by the present invention includes a chain adjuster.

[0027] In combination with the above technical solutions, the beneficial effects achieved by the present invention are:

[0028] The chain adjuster provided by the present invention comprises a fixing part, a traction assembly, a wheel axle connecting part and a baffle; a connecting plate is provided on the side of the electric vehicle frame close to the sprocket, and a U-shaped groove is provided on the connecting plate, the wheel axle of the electric vehicle passes through the U-shaped groove, the fixing part is provided at the opening of the U-shaped groove, and the fixing part is connected to the connecting plate, the traction assembly is connected to the fixing part, the traction assembly passes through the fixing part and extends into the U-shaped groove, and the traction assembly can move along the U-shaped groove relative to the fixing part; the wheel axle connecting part is provided on the side of the connecting plate close to the sprocket of the electric vehicle, a through hole is provided on the wheel axle connecting part, and the traction assembly extends into the U-shaped groove and is connected to the wheel axle connecting part, the wheel axle connecting part is sleeved on the wheel axle of the electric vehicle through the through hole, and the traction assembly drives the wheel axle of the electric vehicle to move along the U-shaped groove through the wheel axle connecting part to adjust the tightness of the chain; the baffle is connected to the side of the wheel axle connecting part away from the traction assembly The U-shaped groove is provided with a fixing portion, and the traction assembly passes through the fixing portion and extends into the U-shaped groove, and the traction assembly can move along the U-shaped groove relative to the fixing portion. A through hole is provided on the wheel axle connecting portion, and the wheel axle connecting portion is sleeved on the wheel axle of the electric vehicle through the through hole, and the traction assembly extends into the U-shaped groove and is connected with the wheel axle connecting portion. The traction assembly drives the wheel axle of the electric vehicle to move along the U-shaped groove through the wheel axle connecting portion, and the baffle is connected to the side of the wheel axle connecting portion away from the traction assembly. An accommodating space for the wiring harness of the electric vehicle motor is provided between the baffle and the connecting plate, which alleviates the technical problem that the chain adjuster has low strength and cannot fix the motor wiring harness, improves the strength of the chain adjuster, and can fix and protect the wiring harness of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0030] Figure 1 A schematic diagram of the overall structure of a chain adjuster provided in an embodiment of the present invention;

[0031] Figure 2 A schematic structural diagram of the connection between a chain adjuster and a connecting plate provided in an embodiment of the present invention from a first perspective;

[0032] Figure 3 A schematic structural diagram of the connection between the chain adjuster and the connecting plate from a second perspective provided by an embodiment of the present invention.

[0033] Icons: 100-fixing part; 200-traction assembly; 210-locking member; 220-adjusting end; 300-first bending part; 400-axle connecting part; 410-connecting hole; 500-baffle; 510-baffle body; 520-raised part; 600-second bending part; 700-connecting plate; 710-U-shaped groove; 800-electric vehicle axle; 810-sprocket; 820-motor wiring harness; 900-fastener; 910-fixing plate. DETAILED DESCRIPTION

[0034] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0035] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" and the like indicate positions or locations based on those shown in the accompanying drawings. These terms are intended solely to facilitate and simplify the description of the present invention and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not intended to indicate or imply relative importance.

[0036] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention.

[0037] Figure 1 A schematic diagram of the overall structure of the chain adjuster provided in this embodiment; Figure 2A schematic structural diagram of the chain adjuster and the connecting plate provided in this embodiment, viewed from a first perspective, wherein the first perspective is viewed directly from the sprocket 810; Figure 3 This is a structural schematic diagram of the chain adjuster provided in this embodiment connected to the connecting plate from a second perspective, wherein the second perspective is viewed directly from the fixing plate 910 .

[0038] like Figure 1-3 As shown, this embodiment provides a chain adjuster, including a fixing portion 100, a traction assembly 200, a wheel axle connecting portion 400 and a baffle 500; a connecting plate 700 is provided on the side of the electric vehicle frame close to the sprocket 810, and a U-shaped groove 710 is provided on the connecting plate 700. The electric vehicle wheel axle 800 passes through the U-shaped groove 710, the fixing portion 100 is provided at the opening of the U-shaped groove 710, and the fixing portion 100 is connected to the connecting plate 700, the traction assembly 200 is connected to the fixing portion 100, the traction assembly 200 passes through the fixing portion 100 and extends into the U-shaped groove 710, and the traction assembly 200 can move along the U-shaped groove 710 relative to the fixing portion 100; the wheel axle The connecting part 400 is arranged on the side of the connecting plate 700 close to the sprocket 810 of the electric vehicle. A through hole is provided on the wheel axle connecting part 400, and the traction component 200 extends into the U-shaped groove 710 and is connected to the wheel axle connecting part 400. The wheel axle connecting part 400 is sleeved on the electric vehicle axle 800 through the through hole. The traction component 200 drives the electric vehicle axle 800 to move along the U-shaped groove 710 through the wheel axle connecting part 400 to adjust the tightness of the chain; the baffle 500 is connected to the side of the wheel axle connecting part 400 away from the traction component 200, and an accommodating space is provided between the baffle 500 and the connecting plate 700 to confine the electric vehicle motor harness 820 within the accommodating space.

[0039] Specifically, such as Figure 2As shown, a connecting plate 700 is provided on one side of the electric vehicle frame near the sprocket 810, and a U-shaped groove 710 is provided on the connecting plate 700. The opening of the U-shaped groove 710 is provided on one side of the connecting plate 700, and the fixing portion 100 is provided at the opening of the U-shaped groove 710; the fixing portion 100 can be provided as a rectangular metal plate, and a through-hole connecting hole 410 is provided in the center of the rectangular metal plate, and the axle connecting portion 400 is sleeved on the electric vehicle axle 800 through the connecting hole 410, and guard plates perpendicular to the rectangular metal plate are respectively provided at the two longer edges of the rectangular metal plate, and the guard plates form a certain wrapping shape on the side of the connecting plate 700; the traction component 200 passes through the through-hole provided on the fixing portion 100 and extends into the U-shaped groove 710, the axle connecting portion 400 is provided on the side of the connecting plate 700 near the sprocket 810 of the electric vehicle, and the traction component 200 extends into the U-shaped groove 710 and The wheel axle connecting part 400 is connected; a through hole is provided on the wheel axle connecting part 400, and the wheel axle connecting part 400 is sleeved on the electric vehicle wheel axle 800 through the through hole. The traction component 200 drives the electric vehicle wheel axle 800 to move along the U-shaped groove 710 through the wheel axle connecting part 400 to change the distance between the sprocket 810 provided on the electric vehicle wheel axle 800 and the sprocket 810 at the pedal to adjust the tightness of the chain. The overall hollow cylindrical structure of the wheel axle connecting part 400 can improve the strength of the wheel axle connecting part 400 compared with the existing open wheel axle connecting part 400; the baffle 500 is connected to the side of the wheel axle connecting part 400 away from the traction component 200, and an accommodating space is provided between the baffle 500 and the connecting plate 700. The wiring harness of the electric vehicle motor is provided in the accommodating space to fix and protect the wiring harness 820 of the electric vehicle motor.

[0040] In addition, a connecting plate 700 is also provided on the side of the electric vehicle frame away from the sprocket 810. Similarly, a U-shaped groove 710 is provided on the connecting plate 700, and the two ends of the electric vehicle wheel axle 800 are respectively provided in the U-shaped groove 710 on both sides of the electric vehicle wheel. Unless otherwise specified, the connecting plate 700 and U-shaped groove 710 referred to in this article are the connecting plate 700 and U-shaped groove 710 close to the side of the sprocket 810; the chain adjuster provided in this embodiment can be separately installed on the connecting plate 700 close to the side of the sprocket 810, and accordingly, chain adjusters can be respectively provided on the connecting plates 700 on both sides of the electric vehicle wheel.

[0041] The chain adjuster provided in this embodiment includes a fixing portion 100, a traction assembly 200, a wheel axle connecting portion 400 and a baffle 500; a connecting plate 700 is provided on the side of the electric vehicle frame close to the sprocket 810, and a U-shaped groove 710 is provided on the connecting plate 700. The electric vehicle wheel axle 800 passes through the U-shaped groove 710, and the fixing portion 100 is provided at the opening of the U-shaped groove 710, and the fixing portion 100 is connected to the connecting plate 700, and the traction assembly 200 is connected to the fixing portion 100. The traction assembly 200 passes through the fixing portion 100 and extends into the U-shaped groove 710. The guide assembly 200 can move along the U-shaped groove 710 relative to the fixing portion 100; the wheel axle connecting portion 400 is arranged on the side of the connecting plate 700 close to the electric vehicle sprocket 810, and a through hole is provided on the wheel axle connecting portion 400, and the traction assembly 200 extends into the U-shaped groove 710 and is connected to the wheel axle connecting portion 400, and the wheel axle connecting portion 400 is sleeved on the electric vehicle wheel axle 800 through the through hole, and the traction assembly 200 drives the electric vehicle wheel axle 800 to move along the U-shaped groove 710 through the wheel axle connecting portion 400 to adjust the tightness of the chain; the baffle 500 and the wheel axle connecting portion 40 0 is connected to the side away from the traction assembly 200, and an accommodating space is set between the baffle 500 and the connecting plate 700 to limit the electric vehicle motor harness 820 within the accommodating space; the fixing portion 100 is set at the opening of the U-shaped groove 710, and the traction assembly 200 passes through the fixing portion 100 and extends into the U-shaped groove 710. The traction assembly 200 can move along the U-shaped groove 710 relative to the fixing portion 100. A through hole is set on the wheel shaft connecting portion 400, and the wheel shaft connecting portion 400 is sleeved on the electric vehicle wheel shaft 800 through the through hole. The traction assembly 200 extends into the U The U-shaped groove 710 is connected to the wheel axle connection part 400, and the traction component 200 drives the electric vehicle wheel axle 800 to move along the U-shaped groove 710 through the wheel axle connection part 400. The baffle 500 is connected to the side of the wheel axle connection part 400 away from the traction component 200. A accommodating space for the electric vehicle motor wiring harness 820 is provided between the baffle 500 and the connecting plate 700, which alleviates the technical problem that the chain adjuster has low strength and cannot fix the motor wiring harness 820, improves the strength of the chain adjuster, and can fix and protect the motor wiring harness 820.

[0042] On the basis of the above embodiments, further, the traction assembly 200 in the chain adjuster provided in this embodiment includes an adjusting end 220 and a locking member 210; the adjusting end 220 passes through the fixing portion 100 and extends into the U-shaped groove 710 to be connected to the wheel axle connecting portion 400, and the locking member 210 is arranged on the side of the fixing portion 100 away from the U-shaped groove 710, and the locking member 210 is connected to the fixing portion 100, and the adjusting end 220 is used to drive the wheel axle connecting portion 400 to move.

[0043] Specifically, such as Figure 1As shown, the traction assembly 200 includes an adjusting end 220 and a locking piece 210. In the optional scheme of this embodiment, preferably, the adjusting end 220 and the locking piece 210 are respectively set as a stud and an anti-loosening flange nut, and the outer surface of the stud is provided with a thread, and the outer thread of the stud and the inner thread of the flange nut match each other; one end of the stud passes through the fixing part 100 and extends into the U-shaped groove 710 to be connected to the wheel axle connecting part 400, and the anti-loosening flange nut is sleeved on the stud and is located on the side of the fixing part 100 away from the U-shaped groove 710. The anti-loosening flange nut is always in contact with the side connected to the fixing part 100, and the anti-loosening flange nut drives the wheel axle connecting part 400 to move relative to the U-shaped groove 710 by rotating on the stud; at the same time, after the chain tension is adjusted, the anti-loosening flange nut can limit the movement of the stud in the U-shaped groove 710.

[0044] Furthermore, the chain adjuster further includes a first bending portion 300 ; the first bending portion 300 is disposed between the adjusting end 220 and the axle connecting portion 400 , and both ends of the first bending portion 300 are respectively connected to the adjusting end 220 and the axle connecting portion 400 .

[0045] Specifically, the chain adjuster also includes a first bending portion 300, which is arranged between the adjusting end 220 and the axle connecting portion 400, and the two ends of the first bending portion 300 are respectively connected to the adjusting end 220 and the axle connecting portion 400; an angle is set between the first bending portion 300 and the adjusting end 220, and the end of the first bending portion 300 away from the adjusting end 220 extends in a direction away from the U-shaped groove 710, so that the axle connecting portion 400 is arranged on the side of the adjusting end 220 close to the electric vehicle sprocket 810, and the plane where the axle connecting portion 400 is located is parallel to the plane where the connecting plate 700 is located.

[0046] Furthermore, the baffle 500 includes a baffle body 510 and a protrusion 520; the baffle body 510 is arranged on the side of the wheel axle connection part 400 close to the sprocket 810, and the baffle body 510 is connected to the end of the wheel axle connection part 400 away from the traction assembly 200, and an accommodating space is provided between the baffle body 510 and the connecting plate 700; one end of the protrusion 520 is connected to the end of the baffle body 510 away from the wheel axle connection part 400, and the other end of the protrusion 520 extends in a direction close to the connecting plate 700 to confine the electric vehicle motor harness 820 within the accommodating space; wherein, the protrusion 520 is provided in plurality, and the plurality of protrusions 520 are all provided on the side of the baffle body 510 away from the wheel axle connection part 400.

[0047] Specifically, the baffle 500 includes a baffle body 510 and a protrusion 520. The baffle body 510 is configured as a polygonal metal plate. The baffle body 510 is arranged on the side of the wheel axle connection part 400 close to the sprocket 810, and the baffle body 510 is connected to the end of the wheel axle connection part 400 away from the traction assembly 200; the protrusion 520 is arranged on the side of the baffle body 510 away from the wheel axle connection part 400, one end of the protrusion 520 is connected to the wheel axle connection part 400, and the other end of the protrusion 520 extends toward the direction close to the connecting plate 700. There are multiple protrusions 520, and the multiple protrusions 520 are all arranged on the side of the baffle body 510 away from the wheel axle connection part 400; an accommodating space is provided between the baffle body 510 and the connecting plate 700, and the electric vehicle motor wiring harness 820 is provided in the accommodating space, and the protrusion 520 is used to confine the electric vehicle motor wiring harness 820 within the accommodating space.

[0048] In addition, the protrusion 520 is not limited to the above structure, and a plurality of protrusions 520 may be connected as a whole to form a curved plate.

[0049] Furthermore, the chain adjuster further includes a second bending portion 600 ; the second bending portion 600 is disposed between the baffle body 510 and the axle connecting portion 400 , and both ends of the second bending portion 600 are connected to the baffle body 510 and the axle connecting portion 400 , respectively.

[0050] Specifically, the chain adjuster also includes a second bending portion 600, which is configured as a curved plate, both ends of which are configured as arc shapes, one end of the curved plate is connected to the wheel axle connecting portion 400, and the other end of the curved plate extends toward the direction close to the sprocket 810, and the end of the curved plate away from the wheel axle connecting portion 400 is connected to the baffle body 510, so that the baffle body 510 is arranged on the side of the wheel axle connecting portion 400 close to the sprocket 810, and the plane where the baffle body 510 is located is parallel to the plane where the wheel axle connecting portion 400 is located; since the sprocket 810 is arranged between the electric vehicle wheel and the baffle body 510, the baffle body 510 can prevent the sprocket 810 from moving axially along the electric vehicle wheel axle; in some electric vehicle models, the electric vehicle motor and the sprocket 810 are coaxial and transmission connected, and the baffle body 510 can effectively prevent the sprocket 810 from completely disengaging from the electric vehicle motor, thereby increasing driving safety.

[0051] The chain adjuster provided in this embodiment extends into the U-shaped groove 710 through the fixing part 100 through the adjusting end 220 and is connected to the wheel axle connecting part 400. The locking member 210 is arranged on the side of the fixing part 100 away from the U-shaped groove 710, and the baffle body 510 is connected to the end of the wheel axle connecting part 400 away from the traction assembly 200. An accommodating space is provided between the baffle body 510 and the connecting plate 700. One end of the protrusion 520 is connected to the end of the baffle body 510 away from the wheel axle connecting part 400, which can effectively restrict the electric vehicle motor wiring harness 820 within the accommodating space; since the sprocket 810 is arranged between the electric vehicle wheel and the baffle body 510, the baffle body 510 can block the sprocket 810 from moving axially along the electric vehicle wheel axle 800, which can effectively prevent the sprocket 810 from being completely separated from the electric vehicle motor, thereby improving the driving safety of the electric vehicle.

[0052] On the basis of the above embodiment, further, the axle connecting portion 400 and the baffle 500 in the chain adjuster provided in this embodiment are integrally formed.

[0053] Specifically, the axle connecting portion 400 and the baffle 500 are integrally formed. In the optional scheme of this embodiment, preferably, the adjustment end 220, the first bending portion 300, the axle connecting portion 400 and the baffle 500 are set to an integrally formed structure, and specifically, a casting or stamping molding process can be used.

[0054] Furthermore, the fixing portion 100 , the pulling assembly 200 and the baffle 500 are all provided with an anti-rust coating.

[0055] Specifically, the fixing portion 100, the traction assembly 200 and the baffle 500 are all provided with an anti-rust coating. In an optional solution of this embodiment, the chain adjuster provided in this embodiment is preferably provided with an anti-rust coating as a whole, and the coating is preferably set to be electro-galvanized.

[0056] Furthermore, the electric wheel axle 800 is connected to the connecting plate 700 through a fastener 900 and a fixing plate 910 . The fastener 900 is arranged at one end of the electric wheel axle 800 close to the connecting plate 700 , and the fixing plate 910 is arranged between the fastener 900 and the connecting plate 700 .

[0057] Specifically, the fastener 900 is arranged at the end of the electric vehicle axle 800 close to the connecting plate 700, and the fixing plate 910 is arranged between the fastener 900 and the connecting plate 700. The fixing plate 910 can increase the support area between the fastener 900 and the connecting plate 700. The fastener 900 can be set as a bolt, and the bolt cooperates with the external thread at one end of the electric vehicle axle 800.

[0058] The chain adjuster provided in this embodiment is integrally formed by the axle connecting part 400 and the baffle 500, and adopts processes such as casting or stamping, which can effectively reduce production costs; the fixing part 100, the traction component 200 and the baffle 500 are all provided with an anti-rust coating, which can significantly enhance the rust resistance of the chain adjuster provided in this embodiment and indirectly increase its service life; the electric vehicle axle 800 is connected to the connecting plate 700 through a fastener 900 and a fixing plate 910, providing reliable installation and working conditions for the chain adjuster provided in this embodiment.

[0059] On the basis of the above embodiment, further, the chain-driven transport tool provided in this embodiment includes a chain adjuster.

[0060] Since the technical effect of the chain drive conveyor provided by this embodiment is the same as the technical effect of the chain adjuster provided above, it will not be described in detail here.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A chain adjuster, characterized in that: include: The fixing part, the traction assembly, the wheel axle connection part and the baffle; A connecting plate is provided on one side of the electric vehicle frame close to the sprocket, and a U-shaped groove is provided on the connecting plate. The electric vehicle wheel axle passes through the U-shaped groove. The fixing portion is provided at the opening of the U-shaped groove, and the fixing portion is connected to the connecting plate. The traction assembly is connected to the fixing portion, and the traction assembly passes through the fixing portion and extends into the U-shaped groove. The traction assembly can move along the U-shaped groove relative to the fixing portion. The wheel axle connecting portion is provided on a side of the connecting plate close to the sprocket of the electric vehicle, a through hole is provided on the wheel axle connecting portion, and the traction assembly extends into the U-shaped groove and is connected to the wheel axle connecting portion, the wheel axle connecting portion is sleeved on the wheel axle of the electric vehicle through the through hole, and the traction assembly drives the wheel axle of the electric vehicle to move along the U-shaped groove through the wheel axle connecting portion to adjust the tightness of the chain; The baffle is connected to a side of the wheel axle connection portion away from the traction assembly, and an accommodating space is provided between the baffle and the connecting plate to confine the electric vehicle motor harness within the accommodating space; The baffle includes a baffle body and a protruding portion; The baffle body is arranged on a side of the wheel shaft connecting portion close to the sprocket, and the baffle body is connected to an end of the wheel shaft connecting portion away from the traction assembly, and an accommodating space is provided between the baffle body and the connecting plate; One end of the protrusion is connected to an end of the baffle body away from the wheel axle connection portion, and the other end of the protrusion extends in a direction close to the connection plate to confine the electric vehicle motor harness within the accommodating space; Also includes a second bending portion; The second bending portion is provided between the baffle body and the wheel axle connecting portion, and two ends of the second bending portion are respectively connected to the baffle body and the wheel axle connecting portion.

2. The chain adjuster according to claim 1, characterized in that The traction assembly includes an adjustment end and a locking member; The adjusting end passes through the fixing portion and extends into the U-shaped groove to be connected to the wheel axle connecting portion. The locking member is arranged on a side of the fixing portion away from the U-shaped groove, and the locking member is connected to the fixing portion. The adjusting end is used to drive the wheel axle connecting portion to move.

3. The chain adjuster according to claim 2, characterized in that Also includes a first bending portion; The first bending portion is arranged between the adjusting end and the wheel axle connecting portion, and two ends of the first bending portion are respectively connected to the adjusting end and the wheel axle connecting portion.

4. The chain adjuster according to claim 1, characterized in that The protrusion is provided in plurality; The plurality of protrusions are all arranged on a side of the baffle body away from the wheel axle connecting portion.

5. The chain adjuster according to claim 1, wherein: The wheel axle connecting portion and the baffle are integrally formed.

6. The chain adjuster according to claim 1, wherein: The fixing portion, the traction assembly and the baffle are all provided with an anti-rust coating.

7. The chain adjuster according to claim 1, characterized in that The electric vehicle wheel axle is connected to the connecting plate through a fastener and a fixing plate. The fastener is arranged at one end of the electric vehicle wheel axle close to the connecting plate, and the fixing plate is arranged between the fastener and the connecting plate.

8. A chain drive transport device, characterized in that: The invention comprises a chain adjuster according to any one of claims 1 to 7.

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