TWI688536B - Conveyor and method using the same - Google Patents

Abstract

The invention discloses a conveyor having a chain assembly defining a conveying loop. The conveyor includes at least one pusher mounted on the chain assembly and having a movable member. The movable member is configured to pivot relatively to the conveying loop. The movable member has an upper portion and a lower portion. The lower portion of the movable member has a first torque with respect to an axis while the upper portion of the movable member has a second torque with respect to the axis. The first torque is larger than the second torque.

Description

Conveyor belt and its conveying method

The invention relates to a conveyor belt and a conveying method thereof, in particular to a conveyor belt and a conveying method which have a reduced occupied space compared to known means.

Known conveyor belts have configurations dedicated to the workpieces and articles that need to be conveyed, including configurations for the transport of trolleys, in particular the trolleys also carry items of considerable weight. Conveyor belts of this type require sufficient torque and are usually equipped with dedicated propulsion components to propel the item or trolley.

Taking the trolley conveyor belt as an example, the first figure shows a schematic side view of a known trolley conveyor belt (100). The conveyor belt (100) includes a chain assembly (101), a plurality of drive wheels (102) and a plurality of propulsion components (103). The chain assembly (101) is composed of at least one chain, which is connected to the driving wheel (102) to define a closed transport loop. For convenience of description, the area enclosed by the conveying loop is defined as its inside, and the area not enclosed by the conveying loop is defined as its outside. The chain rotates according to the conveying loop. According to the position set by the driving wheel (102) (as shown by the dotted line in the figure), the conveying loop of the chain assembly (101) may have an upper loop (101A) and a lower loop (101B). The illustrated conveyor belt is configured according to a level, but in a known configuration, the conveyor belt may be in an inclined configuration, meaning that the horizontal setting height of the drive wheels (102) is different.

These propulsion members (103) are fixed to the chain assembly (101) at equal intervals, so that the propulsion members (103) advance along the conveyance loop as the chain assembly (101) rotates. The propulsion member (103) has a contact portion (104) which is arranged outside the conveyance loop and the contact portion (104) is substantially perpendicular to the conveyance path. The pushing member (103) is used to push a specific object, such as the trolley. The contact portion (104) of the known propulsion member (103) is fixed relative to the chain. In other words, regardless of whether the propulsion member (103) is located on the upper loop (101A) or the lower loop (101B) of the chain, the relationship between the contact portion (104) and the transport loop of the chain remains perpendicular to each other.

The conveyor belt (100) also includes a track (not shown) for carrying one or more trolleys (105). In practice, the track is arranged parallel to the upper loop (101A) of the chain assembly (101), but does not interfere with each other. For example, the chain of the chain assembly (101) may be disposed between a pair of rails, and the rotation of the chain assembly (101) will not affect the movement of the rail or trolley. The rail is responsible for guiding the trolley. For example, the rail may have a groove that conforms to the width of the trolley wheel. The propulsion part (103) of the upper loop (101A) of the chain assembly (101) is responsible for pushing the trolley along the track. The contact portion (104) of the propulsion member (103) usually has a sufficient height (H ₁ ) and area to contact or combine with the rear end of the trolley, so that the trolley is effectively pushed.

When a propulsion member (103) pushes the trolley to the end of the conveyor belt, the propulsion member (103) turns from the upper loop (101A) to the lower loop (101B) along the path of the conveying loop. 103) It has been turned 180 degrees until the pushing member (103) returns to the previous loop (101A). As shown in the figure, according to the size of the driving wheel (102), the chain assembly (101) of the conveyor belt (100) itself also has a height (H ₂ ). When there are enough propulsion components (103), these propulsion components (103) are distributed in the upper loop (101A) and the lower loop (101B) at the same time, therefore, the conveyor belt (100) occupies the height of the two propulsion components ( H ₁ ) and the height of a chain assembly (H ₂ ). This also makes the conveyor belt (100) occupy a larger volume in the vertical direction, forcing the installation height of the conveyor belt (100) to be increased to avoid the propulsion component (103) of the next loop (101B) from being associated with other motor components bump. However, for certain venues where there are volume restrictions, such a conveyor belt design is not suitable.

Therefore, it is necessary to design a conveyor belt that should have a relatively small longitudinal occupation space, thereby enhancing other configuration possibilities under the conveyor belt, or reducing the minimum installation height of the conveyor belt.

The object of the present invention is to provide a conveyor belt having at least one driving wheel driven by at least one motor, and a chain assembly combined with the at least one driving wheel and defining a conveyor loop, wherein the conveyor loop has an upper loop And loop. The conveyor belt includes: at least one propulsion member fixed to the chain assembly and having a movable portion configured to pivot with respect to the conveyor loop, the movable portion having an upper portion and a lower portion, wherein the movable portion The lower part of the shaft has a first moment according to the pivoting shaft, and the upper part of the movable part has a second moment according to the pivoting shaft, wherein the propulsion member rotates from the upper loop to the lower loop , The movable portion pivots the movable portion because the first moment is greater than the second moment, whereby the propulsion member deforms.

In a specific embodiment, the at least one propulsion member has a fixed portion, the fixed portion is connected to the chain assembly and is pivotally connected to the movable portion, whereby the at least one propulsion member can be along the transport loop mobile.

In a specific embodiment, the movable portion has a contact surface and a back surface opposite to the contact surface, wherein the contact surface of the movable portion faces the advancing direction of the upper loop of the transport loop and is used for contacting to be transported Of a car.

In a specific embodiment, the lower portion of the movable portion is provided with at least one weight, so that the first torque is greater than the second torque.

In a specific embodiment, the at least one weight is fixed on the same side as the contact surface with the movable portion.

The invention also provides a conveyor belt having at least one driving wheel driven by at least one motor, and a chain assembly combined with the at least one driving wheel and defining a transportation loop, wherein the transportation loop is perpendicular to a horizontal plane and has Loop once and loop once. The conveyor belt includes: at least one propulsion member, fixed to the chain assembly and having a movable portion and a restriction portion, the movable portion is configured to be pivotable relative to the conveyor loop, the movable portion has an upper portion and a lower portion, Wherein the lower part of the movable part has a first moment according to the pivoting shaft, and the upper part of the movable part has a second moment according to the pivoting shaft, the first moment is greater than the second moment, the The restricting portion is configured to restrict pivoting of the movable portion when the at least one propulsion member is located in the lower loop, the pivoting is caused by the first moment being greater than the second moment.

In a specific embodiment, the at least one propulsion member has a fixed portion, the fixed portion is connected to the chain assembly and is pivotally connected to the movable portion, whereby the at least one propulsion member can be along the transport loop mobile.

In a specific embodiment, the movable portion has a contact surface and a back surface opposite to the contact surface, wherein the contact surface of the movable portion faces the advancing direction of the upper loop of the transport loop and is used for contacting to be transported Of a car.

In a specific embodiment, the restricting portion is located on the fixed portion for restricting the pivoting range of the movable portion.

The invention also provides a conveyor belt having at least one driving wheel driven by at least one motor, and a chain assembly combined with the at least one driving wheel and defining a transportation loop, wherein the transportation loop is perpendicular to a horizontal plane and has Loop once and loop once. The conveyor belt includes: at least one propulsion member having a fixed part and a movable part, wherein the fixed part is connected to the chain assembly, and the movable part is pivotally connected to the fixed part so that the movable part can be fixed relative to the fixed part The part pivots, the movable part has an upper part and a lower part, wherein the lower part of the movable part has a first moment according to a pivot axis of the pivot, and the upper part of the movable part has a first moment according to the pivot axis Two moments, the first moment is greater than the second moment.

In a specific embodiment, the movable portion has a contact surface and a back surface opposite to the contact surface, wherein the contact surface of the movable portion faces the advancing direction of the upper loop of the transport loop and is used for contacting to be transported Of a car.

In a specific embodiment, the lower portion of the movable portion is provided with at least one weight, so that the first torque is greater than the second torque.

In a specific embodiment, the first moment is greater than the second moment so that the at least one propulsion member has a comparison between the fixed portion and the movable portion when it is located in the lower loop than when it is located in the upper loop Small occupy space.

In a specific embodiment, the first moment is greater than the second moment so that when the at least one propulsion member is located in the lower loop, the contact surface of the movable portion pivots toward the fixed portion until it contacts a restriction portion.

These and other features and advantages of the present invention will be presented in more detail in the following description of the present invention and the drawings exemplified by the principles of the present invention.

100: conveyor belt

101: Chain components

101A: last loop

101B: Next round

102: drive wheel

103: Propulsion components

104: contact

105: trolley

H ₁ : height

H ₂ : height

200: Propulsion components

201: fixed part

202: movable part

202A: Upper

202B: Lower

203: upper surface

204: lower surface

205: fixing hole

206: contact surface

207: back

208: counterweight

209: Restriction Department

500: conveyor belt

501: Chain components

501A: last loop

501B: Next circle

502: Drive wheel

L: length

600: trolley

The invention can be further understood with reference to the following drawings and description. Non-limiting and non-exhaustive examples are described with reference to the following drawings. The components in the drawings do not have to be actual sizes; the emphasis is on explaining the structure and principles.

The first figure shows a schematic side view of the conveyor belt (conventional technology).

The second figure shows a perspective view of the propulsion member included in the conveyor belt of the present invention.

The third figure shows a side view of the propulsion member according to the second figure.

The fourth figure shows a front view of the propulsion member according to the second figure.

The fifth figure shows a schematic side view of the conveyor belt of the present invention.

The present invention will be described more fully below with reference to the drawings, and specific examples of specific embodiments will be shown by way of illustration. However, the claimed subject matter can be embodied in many different forms, so the construction covered or applied for claimed subject matter is not limited to any of the example specific embodiments disclosed in this specification; the example specific embodiments are merely illustrative. Similarly, the invention lies in providing a reasonably broad scope for the claimed subject matter covered or covered. In addition, for example, it is claimed that the subject matter may be embodied as a method, device, or system. Therefore, specific embodiments may take the form of hardware, software, firmware, or any combination of these (known not to be software).

The term "in one embodiment" used in this specification does not necessarily refer to the same specific embodiment, and "in other (some/some) embodiments" used in this specification does not necessarily refer to different specific embodiments. Its purpose is, for example, that the claimed subject matter includes a combination of all or part of the exemplary embodiments.

This article only takes "trolley" as the description of the embodiment of the present invention. However, those with ordinary knowledge in the field to which the present invention belongs can adjust the conveyor belt and the so-called propulsion member of the present invention based on at least the teachings of the following embodiments and adjusting them according to the articles or workpieces to be conveyed. The "trolley" described herein is only one of conveying articles or workpieces, and does not limit the objects conveyed by the conveyor belt of the present invention, which will be described first.

The second figure shows a propulsion member (200) included in the conveyor belt of the present invention. The conveyor belt may include at least one propulsion member (200) and each propulsion member (200) has the same configuration. The propulsion member (200) can be directly or indirectly connected to the conveyor belt, so that the propulsion member (200) becomes a part of the conveyance member and smoothly propels the conveyed object.

The pushing member (200) has a fixed part (201) and a movable part (202). The structure of the fixing part (201) is suitable for being connected to some structures of the conveyor belt, such as a chain assembly or a chain included in the conveyor belt. In this embodiment, the fixing portion (201) is a plate made of metal, which has an upper surface (203) and a lower surface (204) and a plurality of fixing holes (205). In an embodiment, the fixing hole (205) of the fixing portion (201) can be combined with a connector (not shown) in a locking manner, and the connector is a structure suitable for connecting a chain, so that the fixing portion (201) The upper surface (203) or the lower surface (204) of 201) is firmly coupled to the chain. In other embodiments, the fixing portion (201) may have other shapes, such as bending or tilting at a specific angle, so that the fixing portion (201) can be directly connected to the chain. The fixing portion (201) as shown in the figure has a length (L). In one embodiment, the length (L) is less than the distance between a pair of chains of the chain assembly.

The movable portion (202) is connected to the fixed portion (201) in a pivotable manner relative to the fixed portion (201), and a plane defined by the pivot is parallel to a plane defined by the chain of the chain assembly. The movable part (202) is a plate made of metal, which has a contact surface (206) and a back surface (207) opposite to the contact surface (206). The contact surface (206) is used to touch the conveyed object. A known pivoting connection means is provided between the contact surface (206) of the movable part (202) and the upper surface (203) of the fixed part (201), so that the movable part (202) can pivot relative to the fixed part (201) . Specifically, the movable part (202) will pivot between a first position and a second position. The first position is that the movable part (202) and the fixed part (201) are perpendicular to each other as shown in the figure, and the second position is that the contact surface (206) of the movable part (202) is close to the upper part of the fixed part (201) Somewhere on the surface (203). In a possible embodiment, the same pivot connection means may be provided between the surface (206) of the movable part (202) and the lower surface (204) of the fixed part (201) to form another direction of pivoting. In other possible embodiments, the contact surface and the back surface can be exchanged. However, care should be taken to ensure that the surface (207) that is the touching object will not pivot due to the reaction force, then the surface (207) can be regarded as the contact surface and the surface (206) as the back surface. Those skilled in the art should understand that this is adjusted according to the actual contact between the object and the movable part (202).

Referring to the third figure, the movable part (202) has an upper part (202A) and a lower part (202B), which are mainly defined by an axis position of the pivoting shaft. Therefore, for the axis, the lower portion (202B) has a first torque and the upper portion (202A) has a second torque. The first moment is greater than the second moment. The specific method is to increase the weight of the lower part (202B). As shown in the figure, the lower portion (202B) of the movable portion (202) is also provided with at least one weight (208), which is connected to the surface on the same side as the contact surface (206). The shape and material of the counterweight (208) should be appropriately selected so that the first moment is greater than the second moment, and that there is a considerable gap between the two. In another embodiment, the The weight (208) may be connected to the surface on the same side as the back surface (207). In other embodiments, the weight (208) and the movable portion (202) are integrally formed metal. Alternatively, a plurality of holes are formed in the upper portion (202A) of the movable portion (202) to reduce the weight of the upper portion (202A), and the same effect can also be achieved. Due to the difference in torque, certain positions of the propulsion member (200) on the conveyor belt will automatically transform into a smaller occupied space due to the relationship of gravity. Details will be described later.

According to the position of the pivot shaft, that is, between the upper surface (203) of the fixed part (201) and the contact surface (206) of the movable part (201), the pivot of the movable part (202) stops at the fixed part (201) A position orthogonal to the movable portion (202) (as shown in the third figure), and the position where the surface (206) and the surface (203) are close to form an angle less than ninety degrees. When the surface (203) and the surface (206) are orthogonal, the structure of the propulsion member (200) is the largest extension, which has a larger occupied space. When the surface (203) and the surface (206) form an angle, the structure of the propulsion member (200) reduces the extension in a specific direction, and it has a small occupied space.

The propulsion member (200) is also provided with a restricting portion for restricting the pivoting of the movable portion (202). Referring to the second and third figures, the pivotal connection means includes a restricting portion (209), which extends from the upper surface (203) of the fixing portion (201). The shape and size of the fixed portion (201) are appropriately selected so that when the contact surface (206) of the movable portion (202) is pivoted toward the fixed portion (201), the surface (206) is hindered by the restriction portion (209), causing The pivoting of the movable part (202) stops here. This design can prevent the movable part (202) from directly colliding with the fixed part (201), and maintain the mechanical stability of the conveyor belt. Alternatively, the restricting portion may be a flexible structure (not shown) attached to the upper surface (203) of the fixed portion (201), which can withstand and reduce the impact of the movable portion (202) on the fixed portion (201) .

The fourth figure shows a front view of the propulsion member (200). The length of the fixed portion (201) is greater than the width of the movable portion (202), so that the movable portion (202) coupled to the propulsion member (200) of the chain assembly is located between the two chains and ensures that the movable portion (200) does not collide Chain. Preferably, the upper part of the movable part (202) has a smaller width than the lower part.

The fifth figure shows a schematic diagram of a conveyor belt (500) having a plurality of aforementioned propulsion members (200), which has at least one driving wheel (502) driven by at least one motor, and is combined with the at least one driving wheel and defines a conveyor A chain assembly (501) of a loop, in which the transport loop has an upper loop (501A) and a lower loop (501B).

In one embodiment, the chain assembly (501) may include a pair of mutually parallel chains, and the chains may be connected to the drive wheel (502) in a known meshing manner to rotate the chains along their defined conveyance loops. Although not completely shown, the transport loop defines a closed path, where the upper loop (501A) and the lower loop (501B) extend substantially horizontally and are parallel to each other. The conveying loop shown in the figure is rotating counterclockwise. Each propulsion component (200) of the lower loop (501B) crosses the drive wheel (502) and returns to the upper loop (501A). Each propulsion component of the upper loop (501A) (200) Passes over another relative drive wheel (not shown) and returns to the next loop (501B).

Referring also to the second to fourth figures, the propulsion member (200) of the embodiment shown in this figure is coupled to the chain assembly (501) with the lower surface (204) of the fixing portion (201). Therefore, in the propulsion member (200) located in the transportation loop, the upper surface (203) of the fixing portion (201) faces the outer side of the transportation loop, and the lower surface (203) of the fixing portion (201) faces the inner side of the transportation loop . In other words, a rotating shaft for pivoting the movable portion (202) is also located outside the conveying loop, that is, above the upper loop (501A) and below the lower loop (501B). Since the first moment (of the lower part 202A) is greater than the second moment (of the upper part 202B), when the propulsion member (200) is located in the upper loop (501A), the fixed part (201) and the movable part The portion (202) is orthogonal, so that the movable portion (202) is exposed to the outside of the transport loop and faces the advancing direction of the transport loop with the contact surface (206). As shown in the figure, the upper portion (202A) of the movable portion (202) has a sufficient height for the contact surface (206) to contact a cart (600) carrying cargo. It should be understood that the conveyor belt (500) may include a track (not shown) to guide the trolley (600), which is arranged parallel to the chain assembly (501) and does not interfere with each other. The trolley (600) can move along the path defined by the track. When the contact surface (206) of the propulsion component (200) touches one end of the trolley (600), the propulsion component (200) and the trolley (600) are combined, so that the trolley (600) is moved synchronously by the advancement of the propulsion component (200), Until the pushing member (200) enters the lower loop (502B) from the upper loop (501A).

When the propulsion part (200) of the upper loop (501A) starts to cross the corresponding driving wheel (not shown), the movable part (202) starts to be fixed relative to the fixed position because the rotating shaft is located outside the conveying loop and the first moment is greater than the second moment The rotation axis of the part (201) pivots until a predetermined pivot boundary. As shown in the figure, when the propulsion member (200) is located in the upper loop (501A), the first moment is greater than the second moment due to the action of gravity, and the lower part (202B) of the movable part (202) is deflected toward the inside of the conveying loop Until it is blocked by a long side of the fixed portion (201) to make orthogonal contact. When the propulsion member (200) passes the corresponding driving wheel and turns to the lower loop (501B), the movable part (202) is forced to turn upside down, but due to the difference in torque, the movable part (202) starts to pivot relative to the rotation axis, Until the movable part (202) is blocked by the restricting part (209). As shown in the fifth figure, when the fixing portion (201) is located in the lower loop (501B), the upper surface (203) still faces the outer side of the conveying loop but is opposite to the upper surface (203) of the upper loop (501A). The upper portion (202A) of the movable portion (202) pivotally stops at a position where the movable portion (202) and the fixed portion (201) define an angle, and the included angle is less than ninety degrees. At this time, the lower part (202B) of the movable part (202) has turned over from the inside to the outside of the transfer loop. However, it should be understood that any structural modification and adjustment may change the deformation result of the propulsion member (200). In another embodiment, a similar propulsion component (200) It is also feasible to couple the upper surface (203) to the chain assembly (501). In other embodiments, it is also possible for a similar propulsion component (200) to use its surface (207) as a contact surface in the direction of advancement of the conveying loop, which means that the propulsion component (200) is installed in reverse. However, it must be considered whether the reaction force of the trolley (600) will cause undesirable pivoting when the movable portion (202) is located in the upper loop (501A).

As shown in the fifth figure, when the propulsion member (200) is located in the upper loop (501A), it has a larger occupied space. When the propulsion member (200) is located in the lower loop (501B), it has a small occupied space. This is because the angle between the fixed part (201) and the movable part (202) of the deformed propulsion member (200) is reduced, and a part of the occupation of length, width or height is removed. As can be seen from the figure, compared to the propulsion member (200) of the upper loop (501A), the propulsion member (200) of the lower loop (501B) has a smaller occupied space in the longitudinal direction of the entire conveyor belt. Compared with the conventional conveyor belt in the first figure, the occupied space under the lower loop (501B) shown in the fifth figure has been significantly reduced, and there is no additional drive to control the deformation of the propulsion component.

Based on the aforementioned mechanism, the present invention provides a delivery method, which includes the following steps.

First, a chain assembly is provided, which defines a conveyor loop. The conveying loop has an upper loop and a lower loop, as shown in the fifth figure. In practical applications, the conveying loop can also be in an inclined configuration, but it should be understood that it can still distinguish between the upper loop and the lower loop.

Next, at least one propulsion member is provided and fixed to the chain assembly so that the propulsion member can advance along the transport loop. The propulsion member has the aforementioned movable portion, meaning that the movable portion can pivot relative to the fixed portion or the conveying loop. And, according to the position of a rotating shaft of the propulsion member, the movable portion has an upper portion and a lower portion, as shown in the third figure.

The upper and lower parts of the movable part are configured with different weights (as described above, the weight 208 is provided), so that the lower part of the movable part has a first moment according to the pivot axis, and the upper part of the movable part is based on the pivot The turn has a second moment, and the first moment is greater than the second moment. It should be understood that the greater the difference in torque, the faster the reaction to start pivoting.

A restricting portion is provided in the propulsion member for restricting the pivoting range of the movable portion. For example, the restriction may be provided in the pivot connection means as described in the second figure. Alternatively, the restriction portion may be provided on the upper surface of the fixed portion, or the fixed portion itself may serve as a restriction portion that resists pivoting of the movable portion.

According to the foregoing, since the first moment is greater than the second moment, the propulsion member located in the upper loop has a first occupied space. Since the first moment is greater than the second moment and the restricting portion, the propulsion member located in the lower loop has a second occupied space. It should be understood that the occupied space is defined by the length, width and height of the deformable propulsion member, and the first occupied space is larger than the second occupied space. Or, the occupied space refers to a longitudinally extending occupation of the deformable propulsion member in the conveyor belt.

The method also includes providing a rail carrying at least one vehicle. In one embodiment, the rail is parallel to the upper loop of the transport loop, and the rail is configured so that the contact surface of the movable portion of the propulsion member contacts the trolley. In addition, regarding the provision of the chain assembly, the method further includes determining a horizontal installation height of the chain assembly based on the second occupied space of the propulsion member located in the lower loop.

In summary, the conveyor belt provided by the present invention is equipped with a deformable propulsion member for pushing the conveyed items, and the deformable propulsion member gives the conveyor belt a smaller occupation space, making the utilization of the conveyor belt of the present invention possible Sex is improved.

Although some details have been used to describe the present invention for clarity, I will understand that certain changes and modifications can be implemented within the scope of the patent application. Therefore, the above embodiments are only used to say The invention is not limited, and the present invention is not limited to the details described here, but it can be modified in the field and the equivalent of the additional patent application scope.

200: Propulsion components

201: fixed part

204: lower surface

205: fixing hole

202: movable part

202A: Upper

202B: Lower

203: upper surface

L: length

206: contact surface

207: back

208: counterweight

209: Restriction Department

Claims (15)

A conveyor belt has at least one driving wheel driven by at least one motor, and a chain assembly combined with the at least one driving wheel and defining a conveyor loop, wherein the conveyor loop is perpendicular to a horizontal plane and has an upper loop And the following loop, characterized in that the conveyor belt includes: at least one propulsion member, fixed to the chain assembly and having a movable portion and a restricting portion, the movable portion is configured to pivot relative to the conveyor loop, the The movable part has an upper part and a lower part, wherein the lower part of the movable part has a first moment according to the pivot axis, and the upper part of the movable part has a second moment according to the pivot axis, the first A moment is greater than the second moment, the restricting portion is configured to restrict pivoting of the movable portion when the at least one propulsion member is located in the lower loop, the pivoting is caused by the first moment being greater than the second moment, The propulsion member located in the lower loop has a relatively smaller occupied space than the propulsion member located in the upper loop. The conveyor belt as described in item 1 of the patent application scope, wherein the at least one propulsion member has a fixed portion connected to the chain assembly and pivotally connected to the movable portion, whereby the at least one propulsion member Can move along the conveying loop. The conveyor belt as described in item 1 of the patent application scope, wherein the movable portion has a contact surface and a back surface opposite to the contact surface, wherein the contact surface of the movable portion faces the advancing direction of the upper loop of the transport loop And used to contact a car to be transported. The conveyor belt as described in item 2 of the patent application scope, wherein the restricting portion is located on the fixed portion for restricting the pivoting range of the movable portion. A conveyor belt has at least one driving wheel driven by at least one motor, and a chain assembly combined with the at least one driving wheel and defining a conveyor loop, wherein the conveyor loop is perpendicular to a horizontal plane and has an upper loop The following loop is characterized in that the conveyor belt includes at least one propulsion member having a fixed part and a movable part, wherein the fixed part is connected to the chain assembly, and the movable part is pivotally connected to the fixed part, The movable part can be pivoted relative to the fixed part, the movable part has an upper part and a lower part, wherein the lower part of the movable part has a first moment according to the pivoting axis of rotation, and the upper part of the movable part is based on The pivoting shaft has a second moment, the first moment is greater than the second moment. The conveyor belt as described in item 5 of the patent application scope, wherein the movable portion has a contact surface and a back surface opposite to the contact surface, wherein the contact surface of the movable portion faces the forward direction of the upper loop of the transport loop And used to contact a car to be transported. The conveyor belt as described in item 5 of the patent application scope, wherein the lower portion of the movable portion is provided with at least one weight, whereby the first torque is greater than the second torque. The conveyor belt as described in item 5 of the patent application scope, wherein the first moment is greater than the second moment so that the at least one propulsion member is located in the lower loop than the upper loop when the fixed portion It has a smaller occupied space with the movable part. The conveyor belt as described in item 6 of the patent application range, wherein the first moment is greater than the second moment so that when the at least one propulsion member is located in the lower loop, the contact surface of the movable part pivots toward the fixed part Turn until it contacts a restricting portion on the fixed portion. A conveying method, comprising: providing a chain assembly, the chain assembly defining a conveying loop, the conveying loop having an upper loop and a lower loop; At least one propulsion member is provided, fixed to the chain assembly and movable along the transport loop, wherein the at least one propulsion member has a movable portion, the movable portion can pivot relative to the transport loop, and the movable portion has an upper portion And the lower part; the upper and lower parts of the movable part are configured to have different weights, so that the lower part of the movable part has a first moment according to the pivot, and the upper part of the movable part has a first moment according to the pivot Two moments, and the first moment is greater than the second moment; and a limiting part is provided in the at least one propulsion member for limiting the pivoting range of the movable part; wherein, because the first moment is greater than the second moment , The at least one propulsion member located in the upper loop has a first occupied space, wherein, because the first moment is greater than the second moment and the restricting portion, the at least one propulsion member located in the lower loop has a first Second occupied space, the first occupied space is larger than the second occupied space. The method as described in item 10 of the patent application range, wherein the at least one propulsion member has a fixed portion, the fixed portion is connected to the chain assembly and is pivotally connected to the movable portion, and the restriction portion is located on the fixed portion In order to limit the pivoting of the movable part. The method according to item 10 of the patent application scope, wherein the providing at least one propulsion member includes: providing at least one weight block at the lower portion of the movable portion. The method of claim 10, wherein providing at least one propulsion member includes: providing a contact surface on the movable portion toward the forward direction of the upper loop of the transport loop. The method described in item 13 of the patent application scope further includes: providing a track carrying at least one vehicle, the track being parallel to the upper loop of the conveying loop, and the track being configured to allow the movement of the at least one propulsion member The contact surface of the part contacts the trolley. The method according to item 10 of the patent application scope, wherein the providing the chain assembly includes: determining a horizontal installation height of the chain assembly according to the second occupied space of at least one propulsion member located in the lower loop.

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