CN219435617U - Inner belt traction assembly, double-drive belt traction assembly and belt traction machine - Google Patents

Abstract

The utility model discloses an inner belt traction assembly, a double-drive belt traction assembly and a belt traction machine, wherein the inner belt traction assembly comprises a fixed frame, a central wheel arranged on the fixed frame, a row roller arranged around the central wheel, a first driving wheel, a driven wheel and a closed-loop inner belt, the row roller is arranged along an arc track, and the first driving wheel and the driven wheel are respectively positioned on extension lines at two ends of the arc track of the row roller; the inner belt is U-shaped as a whole, and the row rollers are matched with the inner side surface of the inner belt; the double-drive belting traction assembly comprises the inner belt traction assembly and the outer belt traction assembly fixed on the frame body, wherein the outer belt traction assembly comprises a plurality of synchronous pulleys and an outer belt which are distributed around the outer side of the inner belt, one synchronous pulley is a second driving wheel, and the outer belt and the inner belt are simultaneously matched with the outer edge of the row roller; the inner belt traction assembly and the traction machine adopt a row roller structure with specific arc-shaped curve arrangement to realize rotary operation, so that the structure is simplified, and the operation is reliable and stable.

Description

Inner belt traction assembly, double-drive belt traction assembly and belt traction machine

Technical Field

The utility model relates to the technical field of crosslinking production lines, in particular to an inner belt traction assembly, a double-drive belt traction assembly and a belt traction machine.

Background

The production of the wire and the cable is required to be processed in a crosslinked cable production line, and the tractor is an essential device on the crosslinked cable production line, and the wire core enters the production line and moves along the production line under the action of the tractor, so that a layer of materials such as plastics, rubber and the like are crosslinked on the wire core.

The existing tractors used on the crosslinked cable production line are mainly the traditional belting tractors and caterpillar tractors; the existing belt traction machine structure can refer to a patent with publication number CN102446589A, as shown in fig. 1, an outer belt 3 and an inner belt 11 are arranged on a frame of the belt traction machine, a first gear 8 is arranged at the output end of a first driving device, an inner belt 11 matched with the outer belt is arranged on a traction wheel 6, and a second gear 7 is connected with the traction wheel 6 and meshed with the first gear; when the belt conveyer is in operation, the first gear 8 is driven by the driving device to rotate, and then the second gear 7 is driven to rotate, and the second gear drives the traction wheel 6 to rotate, so that the inner belt 11 arranged on the belt conveyer drives the outer belt 3 to move, and the wire core 12 enters the belt conveyer through the wire inlet and runs under the driving of the outer belt and the inner belt. The belt wrapping tractor drives the gearbox and the reduction gearbox to drive the pinion through the motor, and the pinion drives the bull gear to work, wherein the bull gear and the pinion are in open drive, and if lubrication is insufficient, the abrasion of the gears is serious for a long time, and the problems of large gap and unstable drive are easy to occur; in addition, the large gear of the taping tractor can shake due to sudden change of paying-off tension in operation due to large diameter of the gear, and the problems of unstable running and unstable product quality of a traction object are easily caused.

The crawler tractor works by driving a gearbox and a reduction gearbox to drive a belt pulley through a motor, as shown in fig. 2, the crawler tractor disclosed in patent publication No. CN205984427U comprises a frame 1, a crawler traction unit 2 arranged at one side part of the frame 1, guide roller units 4 arranged on the frames at two ends of the crawler traction unit 2 and a transmission unit 3 for driving the crawler traction unit, wherein the crawler traction unit 2 comprises an upper crawler traction assembly 21 and a lower crawler traction assembly 22 which are symmetrically arranged up and down along a traction track, and clamping units 5 are arranged on crawler sections opposite to the inner sides of the upper crawler traction assembly 21 and the lower crawler traction assembly 22; the upper caterpillar traction assembly and the lower caterpillar traction assembly are arranged along the traction track, and a belt traction mode that the caterpillar symmetrically clamps the cable for traction is adopted, so that the cable is linearly pulled along the traction track. Although the caterpillar tractor has better lubricity compared with the belting tractor, the caterpillar tractor has the characteristics of complex structure and complicated installation, requires larger installation space and is not suitable for the rotation of a traction object in a specific environment.

Thus, the prior art is still to be further developed.

Disclosure of Invention

Aiming at the problems of poor lubricity and running stability of the existing belt traction machine caused by the structural characteristics of the traction assembly and complex structure, complicated installation and narrow application range of the crawler traction machine, the utility model provides the inner belt traction assembly which is simple in structure and more reliable in running, and the belt traction machine is reliable and stable in running through being matched with the corresponding outer belt traction assembly, so that the belt traction machine is better in lubricity and stability and wider in application range.

The utility model provides the following technical scheme:

in a first aspect, the present application provides an inner belt traction assembly for a belt retractor, including a fixing frame, a central wheel disposed on the fixing frame, a row roller disposed around the central wheel, a first driving wheel, a driven wheel, and an inner belt disposed in a closed loop, wherein the row roller is arranged along an arc track, and the first driving wheel and the driven wheel are respectively disposed on extension lines at two ends of the arc track of the row roller; the inner belt arranged on the central wheel, the first driving wheel, the row roller and the driven wheel is U-shaped as a whole, the row roller is matched with the inner side surface of the inner belt, and the central wheel is matched with the outer side surface of the inner belt; the first drive wheel is arranged in driving connection with the first drive mechanism.

The first driving wheel moves under the driving of the first driving mechanism and drives the inner belt to run along the U-shaped track and against the outer edge of the row roller.

Preferably, in the inner belt traction assembly, the row roller is formed by arranging a plurality of parallel driving rollers in an arc shape, and two ends of the driving rollers are respectively and fixedly connected to positions corresponding to the fixing frame.

Preferably, in the inner belt traction assembly, the arc track where the row roller is located is a major arc; each driving roller is tangential to the inner belt at the same time. I.e. the central angle of the arc is larger than 180 deg..

Preferably, the inner belt traction assembly is further provided with an inner belt tensioning mechanism, the inner belt tensioning mechanism comprises a central wheel, a second sliding rail and a second tensioning cylinder, the bottom of the central wheel is provided with a sliding block or a pulley, the second sliding rail is in sliding fit with the central wheel, the second tensioning cylinder is used for driving the central wheel to move along the second sliding rail, and the outer end of a telescopic rod of the second tensioning cylinder is fixedly connected with a base of the central wheel; the tensioning adjustment of the inner belt is realized through the position adjustment of the central wheel.

Preferably, the inner belt traction assembly is further provided with an inner belt tensioning mechanism, the inner belt tensioning mechanism comprises a driven wheel, a third sliding rail and a third tensioning cylinder, the bottom of the driven wheel is provided with a sliding block or a pulley, the third sliding rail is in sliding fit with the driven wheel, the third tensioning cylinder is used for driving the driven wheel to move along the third sliding rail, and the outer end of a telescopic rod of the third tensioning cylinder is fixedly connected with a base of the driven wheel; the tensioning adjustment of the inner belt is realized through the position adjustment of the driven wheel.

In a second aspect, the present application provides a dual-drive belt traction assembly for a belt tractor, including the aforementioned inner belt traction assembly and an outer belt traction assembly fixed on a frame, the outer belt traction assembly including a plurality of synchronous pulleys and an outer belt distributed around the outer side of the inner belt, wherein one of the synchronous pulleys is a second driving wheel, the second driving wheel is configured to be in driving connection with a second driving mechanism, the outer belt and the inner belt are simultaneously engaged with the outer edges of the row rollers, and the inner edge of the outer belt and the outer edge of the inner belt are tangential; the inner belt and the outer belt realize the traction of the cable through the common clamping action of the cable on the row roller; the outer belt is U-shaped.

Preferably, in the dual-drive belt traction assembly, the outer belt traction assembly comprises a second driving wheel, an upper driven wheel and two lower driven wheels which are distributed around the outer side of the inner belt; and the second driving wheel, the first driving wheel, the driven wheel and the lower driven wheel are respectively and fixedly arranged on the frame body and are vertically and longitudinally arranged.

Preferably, the dual-drive belt traction assembly is further provided with an outer belt tensioning mechanism, the outer belt tensioning mechanism comprises a first pulley, a first sliding rail in sliding fit with the first pulley and a first tensioning cylinder for driving the first pulley to move along the first sliding rail, the outer end of a telescopic rod of the first tensioning cylinder is fixedly connected with a base of the first pulley, and the first pulley is any synchronous pulley except for a second driving wheel in the outer belt traction assembly; the tensioning adjustment of the outer belt is achieved by the position adjustment of the first pulley.

In a third aspect, the present application further provides a strapping machine, which is provided with the aforementioned dual-drive strapping traction assembly, and a first driving mechanism and a second driving mechanism, wherein the first driving mechanism and the second driving mechanism are motors or hydraulic motors and pneumatic motors.

Preferably, on the belting tractor, the first driving mechanism and the second driving mechanism are motors and are respectively connected with a speed reducer.

The inner belt traction assembly, the double-drive belt traction assembly and the traction machine provided by the utility model have the following beneficial effects:

1. the inner belt traction assembly is simple in structure, small in occupied space and reliable in structure, and through being matched with the outer belt traction assembly, the lubricating property of the traction machine is comparable to that of the caterpillar traction machine, the structure is simpler than that of the caterpillar traction machine, the inner belt traction assembly can be suitable for the rotation of the front primer under various environments, the occupied space is small, and the inner belt traction assembly can be suitable for various crosslinked cable production line installation environments.

2. The double-drive belting tractor omits a large gear of a conventional belting tractor, adopts a row roller structure with specific arc-shaped curve arrangement to realize rotary operation when a traction object runs, simplifies the structure, runs reliably and stably for a long time, and saves time and labor in maintenance.

Drawings

FIG. 1 is a schematic diagram of a conventional strapping machine;

FIG. 2 is a schematic diagram of a conventional crawler;

FIG. 3 is a schematic view of the inner belt traction assembly of embodiment 1;

fig. 4 is a schematic structural view of the dual-drive strapping machine of embodiment 1; the dashed line represents the cable travel trajectory;

fig. 5 is a schematic diagram of a layout structure of the dual-drive belting tractor in an inner belt working state;

fig. 6 is a schematic diagram of a layout structure of the dual-drive belt retractor in an outer belt working state;

fig. 7 is a schematic side view of a part of the structure of the dual-drive belting tractor;

wherein reference numerals are as follows:

the frame body 1, the center wheel 21, the row roller 22, the first driving wheel 23, the driven wheel 24, the inner belt 25, the second driving wheel 31, the upper driven wheel 32, the lower driven wheel 33, the outer belt 34, the outer belt tensioning mechanism 4, the first sliding rail 42, the first tensioning cylinder 43, the inner belt tensioning mechanism 5, the second tensioning cylinder 51, the first driving mechanism 61, the second driving mechanism 62, and the speed reducer 7.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model. It will be understood that when an element is referred to as being "fixed" to another element, it can be directly on the other element or one or more intervening elements may be present therebetween. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or one or more intervening elements may be present therebetween. The terms "vertical," "horizontal," "left," "right," "upper," "lower," "inner," "outer," "bottom," and the like as used in this specification are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used in this specification includes any and all combinations of one or more of the associated listed items. In addition, the technical features of the different embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.

Example 1

As shown in fig. 3, the present embodiment provides an inner belt traction assembly for a belt tractor, which includes a fixed frame, a center wheel 21 mounted on the fixed frame, a row roller 22 disposed around the center wheel, a first driving wheel 23, a driven wheel 24, and an inner belt 25 disposed in a closed loop. The first drive wheel is arranged in driving connection with the first drive mechanism. In operation, the first drive wheel 23 is driven by the first drive mechanism to move and drive the structures in the inner belt traction assembly to operate, during which the inner belt runs against the outer edges of the row of rollers.

Specifically, the row rollers are arranged along an arc track, and the first driving wheel and the driven wheel are respectively positioned on extension lines at two ends of the arc track of the row rollers. After the arrangement, the inner belt arranged on the central wheel, the first driving wheel, the row roller and the driven wheel is U-shaped (as shown in figure 5), the row roller is matched with the inner side surface of the inner belt, and the central wheel is matched with the outer side surface of the inner belt. In operation, the first driving wheel 23 drives the inner belt 25 to run along the U-shaped track and against the outer edge of the row roller under the drive of the first driving mechanism.

Specifically, the row roller 22 is formed by arranging a plurality of parallel driving rollers in an arc shape, and two ends of the row roller are respectively and fixedly connected to corresponding positions of the frame body, so that the stability of the row roller structure is ensured. The row roller with the specific arc layout has the advantages of simple structure, more space saving, high flexibility of rotary operation, good lubricity and difficult abrasion, and solves the problems of instability and easy abrasion caused by using a large gear by the traditional taping tractor.

Preferably, the arc track where the row roller is located is a major arc, i.e. the central angle of the arc is larger than 180 degrees, so that the arrangement is more reliable in operation. Each driving roller is tangential to the inner belt at the same time.

In this embodiment, in order to be convenient for adjust the tensioning degree of inner belt, the dual drive belting tractor is still provided with inner belt tensioning mechanism 5: the inner belt tensioning mechanism 5 comprises a center wheel 21, a second sliding rail in sliding fit with the center wheel and a second tensioning cylinder 51 used for driving the center wheel to move along the second sliding rail, and the outer end of a telescopic rod of the second tensioning cylinder is fixedly connected with a base of the center wheel. The tensioning adjustment of the inner belt is realized through the position adjustment of the central wheel. Such as when the center wheel is driven to move away from the first drive wheel 23, the tension in the inner and outer is gradually increased.

In other embodiments, the sliding structure of the inner belt tensioning mechanism 5 is adjusted to be a driven wheel, and the inner belt tensioning mechanism 5 comprises a driven wheel with a sliding block or a pulley at the bottom, a third sliding rail in sliding fit with the driven wheel, and a third tensioning cylinder for driving the driven wheel to move along the third sliding rail, wherein the outer end of a telescopic rod of the third tensioning cylinder is fixedly connected with a base of the driven wheel. During operation, the tensioning adjustment of the inner belt can be realized through the position adjustment of the driven wheel.

In practical application, the inner belt traction assembly can be installed on a belt traction machine provided with the outer belt traction assembly, and the traction of the cable is realized through the common clamping action exerted on the row roller by the inner belt of the inner belt traction assembly and the outer belt of the outer belt traction assembly, as shown in fig. 4.

Example 2

As shown in fig. 4 to 7, the present embodiment provides a dual-drive belt traction assembly and a tractor provided with the same.

The double-drive belt traction assembly is provided with the inner belt traction assembly and the matched outer belt traction assembly, the outer belt traction assembly comprises a plurality of synchronous pulleys and an outer belt 34 which are distributed around the outer side of the inner belt, one synchronous pulley is a second driving wheel 31, the second driving wheel is in transmission connection with a second driving mechanism, the outer belt and the inner belt are matched with the outer edge of the row roller at the same time, and the inner edge of the outer belt is tangent to the outer edge of the inner belt; the inner belt and the outer belt realize the traction of the cable through the common clamping action of the cable on the row roller; the outer band is arranged in a U-like shape as shown in FIG. 6.

Based on the above structure, the inner belt and the outer belt in the tractor realize the traction of the cable through the common clamping action applied to the cable on the row roller, as shown in fig. 4, and the dotted line is a travelling route diagram of the cable in the tractor.

Preferably, in this embodiment, the outer belt traction assembly includes a second drive wheel 31, an upper driven wheel 32 and two lower driven wheels 33 disposed side-to-side about the outside of the inner belt, so that the outer belt has a U-shaped configuration. In other embodiments, the number of the upper driven wheel and the lower driven wheel can be reasonably adjusted, and is not limited to the number in the drawings of the embodiment, so that the outer belt and the inner belt can jointly act on the row roller.

On the basis, in order to be convenient for adjust the tensioning degree of outer band, the dual drive belting tractor is still provided with outer band tensioning mechanism 4: the outer belt tensioning mechanism 4 comprises a first pulley, a first sliding rail 42 in sliding fit with the first pulley, and a first tensioning cylinder 43 for driving the first pulley to move along the first sliding rail, the outer end of a telescopic rod of the first tensioning cylinder is fixedly connected with a base of the first pulley, and the first pulley is any synchronous pulley of the outer belt traction assembly except the second driving wheel. During operation, the first tensioning cylinder drives the first pulley to move on the first sliding rail, so that tensioning adjustment of the outer belt is realized.

In this embodiment, the first pulley is the upper driven wheel 32. In other embodiments, the lower driven wheel may be used as the first pulley for tension adjustment control.

In this embodiment, the first slide rail is parallel to the line between the upper driven wheel 32 and the second driven wheel 31. In other embodiments, the first sliding rail may be disposed in other directions.

In this embodiment, the first driving mechanism 61 and the second driving mechanism 62 are motors, and in other embodiments, hydraulic motors or pneumatic motors may be used.

In this embodiment, the first driving mechanism 61 and the second driving mechanism 62 are respectively connected with a speed reducer 7, so as to meet the requirement of the tractor on the rotation speed of the inner belt and the outer belt.

Preferably, as shown in fig. 7, the second driving wheel 31, the first driving wheel 23, the driven wheel 24 and the lower driven wheel 33 are vertically arranged and fixedly arranged on the frame body 1 respectively; the second driving wheel 31 and the first driving wheel 23 are respectively connected with the output shafts of the corresponding speed reducers 7 in a transmission way.

Preferably, the two outer sides of the inner belt and the outer belt are respectively provided with a belt guard plate, so that the inner structure of the tractor is prevented from being influenced by dust, dirt and the like entering from the outside, the service life of the device is prolonged, and the maintenance cost of the device is reduced.

Working principle: as shown in fig. 4, when in operation, the outer belt and the inner belt respectively move reversely under the action of corresponding driving force, the inner belt and the outer belt rotate anticlockwise, the outer belt moves clockwise, and the outer belt and the inner belt are tightly attached at the row roller; when the cable enters the tractor from the wire inlet, the cable is gradually pulled out of the wire outlet along the surface of the row roller under the combined clamping action of the outer belt and the inner belt and the outer belt.

The double-drive belting tractor is mainly used for a crosslinking production line, such as a three-layer coextrusion drying crosslinking production line, is used as an upper tractor and a lower tractor, and is used for driving a wire core to travel along the production line to complete crosslinking processing.

It will be understood that equivalents and modifications will occur to those skilled in the art in light of the present teachings and concepts, and all such modifications and substitutions are intended to be included within the scope of the present utility model as defined in the accompanying claims.

Claims (10)

1. An inner belt traction assembly for a belt conveyer is characterized by comprising a fixed frame, a central wheel (21) arranged on the fixed frame, a row roller (22) arranged around the central wheel, a first driving wheel (23), a driven wheel (24) and an inner belt (25) arranged in a closed loop, wherein the row roller is arranged along an arc track, and the first driving wheel and the driven wheel are respectively positioned on extension lines at two ends of the arc track of the row roller; the inner belt arranged on the central wheel, the first driving wheel, the row roller and the driven wheel is U-shaped as a whole, the row roller is matched with the inner side surface of the inner belt, and the central wheel is matched with the outer side surface of the inner belt; the first drive wheel is arranged in driving connection with the first drive mechanism.

2. The inner belt traction assembly according to claim 1, wherein the row roller (22) is formed by arranging a plurality of parallel driving rollers in an arc shape, and two ends of the driving rollers are respectively and fixedly connected to corresponding positions of the fixing frame.

3. The inner belt traction assembly of claim 2, wherein the arcuate path of the row of rollers is a major arc; each driving roller is tangential to the inner belt at the same time.

4. The inner belt traction assembly for the belt traction machine according to claim 2, further comprising an inner belt tensioning mechanism (5), wherein the inner belt tensioning mechanism (5) comprises a central wheel (21) with a sliding block or a pulley at the bottom, a second sliding rail in sliding fit with the central wheel, and a second tensioning cylinder (51) for driving the central wheel to move along the second sliding rail, and the outer end of a telescopic rod of the second tensioning cylinder is fixedly connected with a base of the central wheel; the tensioning adjustment of the inner belt is realized through the position adjustment of the central wheel.

5. The inner belt traction assembly for the belt traction machine according to claim 2, further comprising an inner belt tensioning mechanism (5), wherein the inner belt tensioning mechanism (5) comprises a driven wheel with a sliding block or a pulley at the bottom, a third sliding rail in sliding fit with the driven wheel, and a third tensioning cylinder for driving the driven wheel to move along the third sliding rail, and the outer end of a telescopic rod of the third tensioning cylinder is fixedly connected with a base of the driven wheel; the tensioning adjustment of the inner belt is realized through the position adjustment of the driven wheel.

6. A dual drive belt traction assembly for a belt tractor, comprising an inner belt traction assembly as claimed in any one of claims 1 to 5 and an outer belt traction assembly secured to the frame, the outer belt traction assembly comprising a plurality of timing pulleys distributed around the outside of the inner belt and an outer belt (34), one of the timing pulleys being a second drive wheel (31) arranged in driving connection with a second drive mechanism, the outer belt and the inner belt being simultaneously engaged with the outer edges of the row rollers, the inner edges of the outer belt being tangential to the outer edges of the inner belt; the inner belt and the outer belt realize the traction of the cable through the common clamping action of the cable on the row roller; the outer belt is U-shaped.

7. The dual drive belt traction assembly of claim 6, wherein the outer belt traction assembly comprises a second drive wheel (31), an upper driven wheel (32) and two lower driven wheels (33) distributed around the outside of the inner belt; and the second driving wheel (31), the first driving wheel (23), the driven wheel (24) and the lower driven wheel (33) are respectively fixedly arranged on the frame body and are vertically and longitudinally arranged.

8. The dual drive belt traction assembly according to claim 7, further comprising an outer belt tensioning mechanism (4), wherein the outer belt tensioning mechanism (4) comprises a first pulley, a first sliding rail (42) in sliding fit with the first pulley, and a first tensioning cylinder (43) for driving the first pulley to move along the first sliding rail, an outer end of a telescopic rod of the first tensioning cylinder is fixedly connected with a base of the first pulley, and the first pulley is any synchronous pulley except a second driving wheel in the outer belt traction assembly; the tensioning adjustment of the outer belt is achieved by the position adjustment of the first pulley.

9. The belt traction machine is characterized in that the dual-drive belt traction assembly as claimed in any one of claims 6-8, a first driving mechanism and a second driving mechanism are installed, and the first driving mechanism and the second driving mechanism are motors or hydraulic motors and pneumatic motors.

10. The belt retractor according to claim 9 wherein the first and second drive mechanisms (61, 62) are motors each connected to a speed reducer (7).