Track winding and unfolding device, track winding and unfolding equipment and assembly production line

Abstract

The present invention relates to the field of assembly machinery technology, and more specifically, to a track winding and unwinding device, track winding and unwinding equipment, and an assembly production line. The track winding and unwinding device comprises: a chuck body, rotatable about its own rotational axis; a tightening and loosening mechanism disposed on the chuck body, the tightening and loosening mechanism having a tightened state for tightening the track roll to be assembled and a loosened state for loosening the track roll, and the track roll is unwound or unfolded by rotating the chuck body. The present invention utilizes the tightening and loosening mechanism to mount the track roll on the chuck body, and utilizes a rotational method to conveniently and safely unwind or unfold the track roll.

Description

Technical Field

[0001] The present invention relates to the technical field of assembly machinery, and in particular to a crawler track winding and unfolding device, crawler track winding and unfolding equipment and an assembly production line. Background Art

[0002] Crawler-type construction machinery uses a crawler travel mechanism. During the equipment assembly process, the crawler track to be assembled needs to be rolled and unrolled. The traditional crawler track unrolling method is to use a crane to lift one end of the crawler track and gradually unroll it under its own weight. However, crawler track unwinding requires manual assistance, which is inconvenient and unsafe. Summary of the Invention

[0003] Therefore, the technical problem to be solved by the present invention is to overcome the defects in the prior art of using manpower and cranes to wind and unfold the tracks of construction machinery such as excavators, which is inconvenient and unsafe, thereby providing a track winding and unfolding device, track winding and unfolding equipment and assembly production line.

[0004] In order to solve the above problems, the present invention provides a track winding and unfolding device, comprising: a chuck body, which can be rotated around its own rotation axis; a tightening and loosening mechanism, which is arranged on the chuck body, and the tightening and loosening mechanism has a tightening state for tightening the track roll to be assembled and a loosening state for loosening the track roll, so as to unfold or wind the track roll by rotating the chuck body.

[0005] Optionally, the tightening and loosening mechanism includes: a plurality of claws arranged at intervals around the rotation axis of the chuck body and configured to tighten or loosen the track roll; a driving part connected to the plurality of claws, the driving part being configured to drive the plurality of claws toward or away from the rotation axis.

[0006] Optionally, the driving part includes a first transmission mechanism, which includes: a first active part, which can be driven to rotate and is arranged on the chuck body; multiple first driven parts, which are arranged on the chuck body in a one-to-one correspondence with the multiple claws, and the multiple first driven parts are coordinated with the first active part for transmission. The rotation of the first active part can drive the first driven part to move, so that the multiple claws can approach or move away from the rotation axis.

[0007] Optionally, the first active part is a cam, and the outer wall of the cam has multiple arc-shaped protrusions and multiple arc-shaped recesses, and two adjacent arc-shaped protrusions are connected by an arc-shaped recess, and the first driven part is a rod transmission mechanism; wherein, when the arc-shaped protrusion cooperates with the rod transmission mechanism, the claw is close to the rotation axis; when the arc-shaped recess cooperates with the rod transmission mechanism, the claw is away from the rotation axis.

[0008] Optionally, the rod transmission mechanism includes: a sliding rod, which is arranged on the chuck body and can move along its own axial direction, and the inner end of the sliding rod abuts against the outer wall of the cam; a rocker arm, whose first end cooperates with the outer end of the sliding rod, and the second end of the rocker arm is connected to the claw, and the part between the first end and the second end of the rocker arm is hinged on the chuck body.

[0009] Optionally, the driving part further includes: a reset member, which is provided on the chuck body and is configured to provide a force for resetting the rocker arm and / or the sliding rod.

[0010] Optionally, the driving part also includes a second transmission mechanism, which includes: a second active part, movably arranged on the chuck body; a second driven part, coaxially connected to the first active part, the second driven part and the second active part are in transmission cooperation, and the second active part is configured to drive the second driven part to rotate.

[0011] Optionally, the second active part is a sliding rod structure that is at least partially provided with a rack, and the second driven part is a gear structure, and the second active part and the second driven part are transmitted through the gear structure and the rack; wherein, the end of the second active part away from the second driven part passes through the outer wall of the chuck body, and the driving part also includes an operating member, which is arranged on the outer wall of the chuck body, and the operating member is connected to the end of the second active part away from the second driven part, and the operating member is configured to drive the second active part to move.

[0012] Optionally, the track winding and unfolding device also includes: a locking mechanism, which is arranged on the chuck body, and the locking mechanism is constructed to have a locking state in which the first active part stops rotating and an unlocking state in which the first active part rotates. When multiple claws tighten the track roll, the locking mechanism is in a locked state.

[0013] Optionally, the clamping claw includes: a clamping plate; and a plurality of clamping strips arranged on the clamping plate, wherein the clamping strips are configured to be clamped in the grooves of the track roll.

[0014] Optionally, the crawler track winding and unfolding device further includes: a power unit, which is transmission-connected to the chuck body to drive the chuck body to rotate.

[0015] Optionally, the power unit includes: a rotational driving source; and a third transmission mechanism, wherein the output end of the rotational driving source is transmission-connected to the chuck body via the third transmission mechanism.

[0016] Optionally, the power unit further includes: a reducer, an input shaft of which is connected to the third transmission mechanism, and an output shaft of the reducer is connected to the chuck body.

[0017] Optionally, the third transmission mechanism is a belt transmission mechanism or a chain transmission mechanism, and the power unit also includes a tensioning mechanism, which includes: a fixed plate; a tensioning wheel, which abuts against the lower inner surface of the transmission member of the third transmission mechanism, and the tensioning wheel is slidably connected to the fixed plate so as to be movable up and down.

[0018] The present invention also provides a track winding and unfolding device, comprising: a track winding and unfolding device, comprising a chuck body and a tightening and loosening mechanism, the chuck body being rotatable around its own rotation axis, the tightening and loosening mechanism being arranged on the chuck body, the tightening and loosening mechanism having a tightening state for tightening the track roll to be assembled and a loosening state for loosening the track roll; the track winding and unfolding device also comprises: a moving part, configured to drive the track winding and unfolding device to move horizontally; and / or, a lifting part, configured to drive the chuck body to move up and down.

[0019] Optionally, when the crawler winding and unfolding equipment includes a lifting part, the lifting part includes: a fixing part; a lifting part, which is arranged on the fixing part; a lifting drive mechanism, which is connected to the lifting part to drive the lifting part to rise and fall; wherein the chuck body is rotatably arranged on the lifting part.

[0020] Optionally, the crawler track winding and unfolding equipment further includes: a power unit in the above-mentioned crawler track winding and unfolding device, the power unit being in transmission connection with the chuck body to drive the chuck body to rotate.

[0021] The present invention also provides an assembly production line, comprising the above-mentioned crawler track winding and unfolding equipment or the above-mentioned crawler track winding and unfolding device.

[0022] The present invention includes the following advantages:

[0023] The crawler track winding and unwinding device provided by the present invention is used to wind the crawler track onto the chuck body through a tightening and loosening mechanism, and can be used to unwind or wind the crawler track in a rotating manner, which is convenient and safe.

[0024] The crawler track winding and unfolding equipment provided by the present invention can tighten the crawler track roll to be assembled through the tightening and loosening mechanism, and unfold or wind the crawler track roll by rotating the chuck body. The crawler track winding and unfolding device unfolds or winds the crawler track roll in a rotating manner, which is more convenient and safer, and effectively avoids the safety hazards caused by lifting the crawler track for assembly.

[0025] The assembly production line provided by the present invention includes the above-mentioned crawler track winding and unfolding equipment or crawler track winding and unfolding device, which can wrap the crawler track on the chuck body through a tightening and loosening mechanism, and can be used to unfold or wind the crawler track in a rotating manner, which is convenient and safe.

[0026] The crawler track winding and unfolding equipment including a moving part and a lifting part is used. When assembling the crawler track roll, the tightening and loosening mechanism tightens the crawler track roll to be assembled, and the moving part drives the chuck body to move. At the same time, the crawler track roll is unfolded by the rotation of the chuck body. When half of the crawler track roll is unfolded, the chuck body and the unfolded crawler track roll are lifted as a whole by the lifting part, and then the moving part moves in the opposite direction to unfold the unfolded crawler track roll above the driving wheel of the lower frame, thereby completing the assembly of the entire crawler track. The above-mentioned crawler track winding and unfolding device adopts a rotating manner to unfold or wind the crawler track, which is more convenient and safer, and effectively avoids the safety hazards caused by lifting the crawler track for assembly, and can also improve the assembly efficiency of the crawler track. The unfolding speed of the crawler track roll is controlled by controlling the rotation speed of the chuck body, which effectively reduces the noise generated when assembling the crawler track. During the rotation process of the chuck body, the unfolded crawler track can be ensured to be consistent with the extension direction of the assembly line, and there is no need to manually adjust the direction of the crawler track. This effectively solves the problem of high labor intensity caused by the need for manual adjustment when the crawler track is not parallel to the extension direction of the assembly line after unfolding in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces 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.

[0028] Figure 1 A three-dimensional schematic diagram showing the cooperation between the crawler track winding and unwinding device and the crawler track according to the first embodiment of the present invention is shown;

[0029] Figure 2 Shown Figure 1 A three-dimensional schematic diagram of a crawler winding and unfolding device of a crawler winding and unfolding device;

[0030] Figure 3 Shown Figure 2 An exploded schematic diagram of a crawler track winding and unfolding device;

[0031] Figure 4 Shown Figure 3 An enlarged schematic diagram of point A of the crawler winding and unfolding device;

[0032] Figure 5 Shown Figure 2 A partially cutaway schematic diagram of a crawler track winding and unfolding device;

[0033] Figure 6 Shown Figure 5 An enlarged schematic diagram of point B of the crawler winding and unfolding device;

[0034] Figure 7 Shown Figure 1 A three-dimensional schematic diagram of the moving part, lifting part and power part of the crawler winding and unfolding equipment;

[0035] Figure 8 Shown Figure 1 An exploded schematic diagram of the crawler track winding and unwinding device and the crawler track;

[0036] Figure 9 A three-dimensional schematic diagram showing the partial coordination of a crawler winding and unfolding device and a crawler track of a crawler winding and unfolding device according to a second embodiment of the present invention is shown;

[0037] Figure 10 A three-dimensional schematic diagram of a crawler according to an embodiment of the present invention is shown.

[0038] Description of reference numerals:

[0039] 10. Moving part; 20. Lifting part; 21. Fixing member; 22. Lifting member; 23. Lifting drive mechanism; 231. Pulley; 232. Wire rope; 30. Power unit; 31. Rotational drive source; 32. Transmission mechanism; 321. Driving pulley; 322. Driven pulley; 323. Transmission member; 33. Speed ​​reducer; 34. Tensioning mechanism; 341. Tensioning pulley; 342. Fixing plate; 40. Chuck body; 41. Mounting slot; 42. Radial hole; 43. An articulated seat; 44, a second articulated seat; 45, a connecting shaft; 50, a clamping claw; 51, a clamping plate; 52, a clamping strip; 61, a cam; 611, an arc-shaped protrusion; 612, an arc-shaped recess; 62, a gear; 63, a sliding rod structure; 64, an operating member; 65, a sliding rod; 66, a rocker arm; 661, a spherical protrusion; 67, a first reset member; 68, a second reset member; 70, a ball joint structure; 71, a ball joint seat; 72, a ball head rod; 80, a track roll; 81, a groove. DETAILED DESCRIPTION

[0040] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0041] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0042] 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 intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0043] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0044] Example 1

[0045] like Figure 1 、 Figure 8 and Figure 10 As shown, the track winding and unfolding device of this embodiment includes: a chuck body 40 and a tightening and loosening mechanism, and the chuck body 40 can be rotated around its own rotation axis; the tightening and loosening mechanism is arranged on the chuck body 40, and the tightening and loosening mechanism has a tightening state for tightening the track roll 80 to be assembled and a loosening state for loosening the track roll 80, so as to unfold or wind the track roll 80 by rotating the chuck body 40.

[0046] When the track winding and unfolding device of this embodiment is used to assemble the track roll 80, the tightening and loosening mechanism tightens the track roll 80 to be assembled, and the track roll 80 is unfolded or wound by rotating the chuck body 40. The track winding and unfolding device unfolds or winds the track roll 80 in a rotating manner, which is more convenient and safer.

[0047] It should be noted that when the track roll 80 is unfolded, the tightening and loosening mechanism tightens any layer of track within the outermost layer of the track roll 80. When the track roll 80 is wound, the track roll 80 includes at least one layer of track, and the tightening and loosening mechanism can tighten any layer of track.

[0048] In this embodiment, if Figure 2As shown, the tightening and loosening mechanism includes a plurality of claws 50 and a drive unit. The plurality of claws 50 are arranged at intervals around the rotation axis of the chuck body 40 and are configured to tighten or loosen the track roll 80. The drive unit is connected to the plurality of claws 50 and is configured to drive the plurality of claws 50 toward or away from the rotation axis. The drive unit drives the plurality of claws 50 toward or away from the rotation axis, so that the plurality of claws 50 can tighten or loosen the track roll 80. The rotation of the chuck body 40 drives the plurality of claws 50 to rotate simultaneously, thereby achieving the unwinding or winding of the track roll 80. Specifically, the plurality of claws 50 are located on the same side of the chuck body 40. The plurality of claws 50 are spaced a certain distance from the side of the chuck body 40, so that the claws 50 are spaced a certain distance from the edge of the track roll 80, thereby clamping the inner side of the track roll 80, and the clamping is more secure and reliable.

[0049] In this embodiment, if Figure 2 and Figure 3 As shown, the driving part includes a first transmission mechanism, which includes: a first active part and a plurality of first driven parts, the first active part being rotatably arranged on the chuck body 40; the plurality of first driven parts and the plurality of claws 50 being arranged on the chuck body 40 in a one-to-one correspondence, the plurality of first driven parts being in transmission cooperation with the first active part, and the rotation of the first active part being able to drive the first driven part to move so as to make the plurality of claws 50 approach or move away from the axis of rotation. As the first active part rotates, the movement of the first driven part is driven, thereby driving the plurality of claws 50 approach or move away from the axis of rotation. Specifically, the first active part is a cam 61, and the first driven part is a rod transmission mechanism. The structure of the first transmission mechanism is simple and the cost is low. It can be understood that, as an alternative embodiment, the driving part can also adopt the driving structure in the chuck on the machine tool in the prior art, and the driving method of the driving part can be manual, electric, hydraulic or pneumatic.

[0050] Preferably, the outer wall of the cam 61 has multiple arcuate protrusions 611 and multiple arcuate recesses 612, with two adjacent arcuate protrusions 611 connected by a single arcuate recess 612. When the arcuate protrusion 611 engages with the rod transmission mechanism, the claw 50 approaches the rotation axis; when the arcuate recess 612 engages with the rod transmission mechanism, the claw 50 moves away from the rotation axis. The number of arcuate protrusions 611, arcuate recesses 612, rod transmission mechanisms, and claws 50 is the same. One end of the rod transmission mechanism abuts against the arcuate protrusion 611 or the arcuate recess 612, and the other end of the rod transmission mechanism is connected to the claw 50. Rotation of the cam 61 drives the claw 50 toward or away from the rotation axis via the rod transmission mechanism. As the cam 61 rotates, one end of the rod transmission mechanism can move from the arcuate concave portion 612 to the arcuate convex portion 611 or from the arcuate convex portion 611 to the arcuate concave portion 612 , thereby enabling the claw 50 to tighten or loosen the track reel 80 .

[0051] Specifically, the number of the claws 50, the rod transmission mechanism, the arcuate protrusions 611, and the arcuate recesses 612 is 7, and the number of links of the innermost crawler track is 7. Of course, the number of the claws 50, the rod transmission mechanism, the arcuate protrusions 611, and the arcuate recesses 612 is not limited to this, and needs to be determined according to the number of links of the innermost crawler track.

[0052] In this embodiment, the rod transmission mechanism includes a sliding rod 65 and a rocker arm 66. The sliding rod 65 is axially movable on the chuck body 40, with the inner end of the sliding rod 65 abutting against the outer wall of the cam 61. The first end of the rocker arm 66 engages with the outer end of the sliding rod 65, and the second end of the rocker arm 66 is connected to the claw 50. The portion between the first and second ends of the rocker arm 66 is hinged to the outer wall of the chuck body 40. The inner end of the sliding rod 65 abuts against the outer wall of the cam 61. When the claw 50 is not in operation, the inner end of the sliding rod 65 abuts against the arc-shaped recess 612, and the end of the rocker arm 66 connected to the claw 50 is tilted, and the claw 50 is then in the highest position, that is, the distance between the claw 50 and the rotation axis is the largest; then the cam 61 is driven to rotate, and the sliding rod 65 moves outward in the radial direction of the chuck body 40 under the action of the cam 61, and the sliding rod 65 pushes up the end of the rocker arm 66 away from the claw 50, and the end of the rocker arm 66 connected to the claw 50 moves inward, and the claw 50 moves inward accordingly, and then is clamped on the crawler roll 80. At this time, the inner end of the sliding rod 65 abuts against the arc-shaped protrusion 611, thereby tightening the crawler roll 80. It can be understood that as an alternative embodiment, the rocker arm 66 is not provided, and the connecting mechanism includes the sliding rod 65 and a connecting rod, one end of the connecting rod is fixedly connected to the outer end of the sliding rod 65, and the other end of the connecting rod is connected to the claw 50. At this time, the claw 50 and the sliding rod 65 have the same movement direction.

[0053] Furthermore, in this embodiment, the drive unit may further include a reset member, which is disposed on the chuck body 40 and is configured to provide a force for resetting the rocker arm 66 and / or the sliding rod 65. When the pawl 50 is not in operation, the inner end of the sliding rod 65 abuts against the arcuate recess 612 under the force of the reset member. It will be understood that in other embodiments, for example, when the rod transmission mechanism is hingedly connected to the arcuate protrusion 611, the reset member may not be provided.

[0054] It can be understood that, for the embodiment in which the cam 61 is used for transmission, as an alternative embodiment, in some other embodiments, the cam 61 may not be used to drive the rod transmission mechanism. Specifically, the following manner may be adopted. For example, a plurality of crankshafts may be rotatably provided on the chuck body 40, one end of the rod transmission mechanism may be hinged to the transmission portion of the crankshaft, a crankshaft driven gear may be coaxially provided on the crankshaft, the crankshaft driven gear may be meshed with a sun gear rotatably provided on the chuck body 40 for transmission, and then the plurality of crankshaft driven gears may be synchronously driven by the rotation of the sun gear. The gears rotate, thereby causing multiple crankshafts to drive their respective hinged rod transmission mechanisms to move, and the rod transmission mechanism may include a sliding rod 65 and a rocker arm 66. The sliding rod 65 can be arranged on the chuck body 40 to move along its own axial direction, and the inner end of the sliding rod 65 is hinged to the transmission part of the crankshaft; the first end of the rocker arm 66 cooperates with the outer end of the sliding rod 65, and the second end of the rocker arm 66 is connected to the claw 50. The part between the first end and the second end of the rocker arm 66 is hinged on the outer wall of the chuck body 40, and the movement control of the claw 50 can also be realized.

[0055] In this embodiment, if Figure 2 、 Figure 3 and Figure 5 As shown, a mounting groove 41 is provided on the end face of the chuck body 40 facing the clamping claw 50, and a radial hole 42 connected to the mounting groove 41 is provided on the chuck body 40. The cam 61 is located in the mounting groove 41, and the sliding rod 65 is passed through the radial hole 42. The middle part of the chuck body 40 can be fully utilized, the arrangement is more compact and flexible, and the overall structure is simplified.

[0056] Furthermore, in this embodiment, the driving part may also include a second transmission mechanism, which includes: a second active part and a second driven part, the second active part being movably arranged on the chuck body 40; a second driven part being coaxially connected to the first active part, the second driven part being in transmission cooperation with the second active part, the second active part being configured to drive the second driven part to rotate, the rotation of the second driven part driving the rotation of the first active part, and then driving the movement of the claw. The operator can drive the second active part to drive the second driven part to rotate, and the operation can be performed manually, thereby simplifying the overall structure of the driving part and reducing costs. It is understandable that, as an alternative embodiment, the second transmission mechanism may not be provided, and the cam 61 may be driven to rotate by providing a rotation drive mechanism such as a motor on the chuck body 40.

[0057] Specifically, if Figures 2 to 4As shown, the second active portion is a slide rod structure 63 at least partially provided with a rack, and the second driven portion is a gear structure. The second active portion and the second driven portion are driven by the gear structure and the rack. In other words, the second transmission mechanism is a rack-and-pinion mechanism, and the gear structure includes a gear 62, and the rack meshes with the gear 62. It is understood that as an alternative embodiment, the second transmission mechanism can be a worm gear mechanism, the second driven portion can be a worm wheel, and the second active portion can be a worm. In this case, the worm can not only move but also rotate, and the rotation of the worm wheel is achieved by rotating the worm. Alternatively, the second transmission mechanism can be a bevel gear mechanism.

[0058] Furthermore, in this embodiment, Figures 2 to 4 As shown, the end of the second active portion away from the second driven portion extends out from the outer wall of the chuck body 40. The driving portion also includes an operating member 64, which is disposed on the outer wall of the chuck body 40 and connected to the end of the second active portion away from the second driven portion. The operating member 64 is configured to drive the second active portion to move. The provision of the operating member 64 facilitates manual operation, is simple and labor-saving. It is understood that as an alternative embodiment, the operating member 64 can be omitted and the movement of the slide rod structure 63 can be achieved directly by pushing and pulling the slide rod structure 63. Alternatively, a linear drive mechanism such as a pneumatic cylinder or an electric cylinder can be provided to drive the movement of the slide rod structure 63.

[0059] Specifically, one end of the operating member 64 is movably connected to the end of the slide rod structure 63 away from the gear 62, and the other end of the operating member 64 forms the operating end. The portion between the two ends of the operating member 64 is movably hinged to the outer wall of the chuck body 40. Manipulation of the operating member 64 drives the slide rod structure 63 to move. The swinging of the operating member 64 drives the linear motion of the slide rod structure 63, which in turn drives the gear 62 and cam 61 to rotate together, thereby driving the cam 61 to rotate. Preferably, the operating member is an operating lever, which has a simple structure and is easy to manufacture.

[0060] Specifically, the gear 62 is located in the mounting groove 41, and part of the slide rod structure 63 is located in the mounting groove 41. At this time, a guide hole connected to the mounting groove 41 is provided on the chuck body 40. The end of the slide rod structure 63 away from the gear 62 passes through the guide hole and is connected to the operating member 64. The guide hole guides the radial movement of the slide rod structure 63.

[0061] In this embodiment, if Figure 5 and Figure 6 As shown, the rocker arm 66 is connected to the claw 50 via an articulated structure. This articulated structure facilitates track positioning when the claw 50 contacts the track. Specifically, the articulated structure is a ball joint 70. The ball joint 70 includes a ball joint seat 71 and a ball rod 72. The ball joint seat 71 has a spherical groove, the ball head of the ball rod 72 is located in the spherical groove, and the rod body of the ball rod 72 is connected to the rocker arm 66.

[0062] In this embodiment, if Figure 3 and Figure 5 As shown, the first end of the rocker arm 66 abuts the outer end of the sliding rod 65. There are two reset members, namely a first reset member 67 and a second reset member 68. The first reset member 67 is mounted on the sliding rod 65 and abuts the chuck body 40. The first reset member 67 provides a force for the sliding rod 65 toward the rotation axis. One end of the second reset member 68 engages with the rocker arm 66, and the other end of the second reset member 68 engages with the outer wall of the chuck body 40. The second reset member 68 provides an elastic force toward the rotation axis for the rocker arm 66. Specifically, the portion of the rocker arm 66 between the first end and the movable hinge engages with the outer end of the second reset member 68. After the track roll is assembled, the sliding rod 65 moves toward the cam 61 under the action of the elastic force of the first reset member 67, and the inner end of the sliding rod 65 abuts against the arc-shaped recess 612. The rocker arm 66, under the action of the elastic member of the second reset member 68, the first end of the rocker arm 66 moves toward the cam 61, and the second end of the rocker arm 66 moves in the direction away from the cam 61. The sliding rod 65 and the rocker arm 66 can be automatically reset without manual operation.

[0063] Specifically, the outer end of the sliding rod 65 has a spherical groove, and the first end of the rocker arm 66 has a spherical protrusion 661, which abuts the groove wall of the spherical groove. It is understood that as an alternative embodiment, the first end of the rocker arm 66 and the outer end of the sliding rod 65 are hingedly connected using a hinge such as a pin. In this case, there is only one reset member, which provides an elastic force toward the rotation axis for the rocker arm 66 and the sliding rod 65. The reset member can be mounted on the sliding rod 65 or disposed between the rocker arm 66 and the outer wall of the chuck body 40.

[0064] In this embodiment, if Figure 3 As shown, the surface of the sliding rod 65 in contact with the cam 61 is an arcuate surface that arches and bends toward the cam 61. The arcuate surface contacts the arcuate protrusion 611 or the arcuate recess 612 of the cam 61. The arrangement of the arcuate surface facilitates cooperation with the arcuate recess 612. Specifically, the sliding rod 65 includes a first column segment and a second column segment. The first column segment extends radially along the chuck body 40, and the second column segment extends along the rotation axis of the chuck body. The first reset member 67 is sleeved on the first column segment. The radial hole 42 includes an outer hole segment and an inner hole segment. The aperture of the outer hole segment is smaller than the aperture of the inner hole segment. One end of the first reset member 67 abuts against the second column segment, and the other end of the first reset member 67 abuts against the step surface between the outer hole segment and the inner hole segment. The second column segment forms an arcuate surface toward the outer peripheral surface of the cam 61. Preferably, the second column segment is a cylinder or a portion of a cylinder, for example, half of a cylinder.

[0065] Preferably, the first reset member 67 is a first spring and the second reset member 68 is a second spring. The springs are easy to use and have low cost. Of course, the first reset member 67 and the second reset member 68 can also be elastic sleeves, etc.

[0066] In this embodiment, if Figure 3 As shown, a first hinge seat 43 is provided on the outer wall of the chuck body 40, a first slide groove is provided on the rocker arm 66, and a first pin is provided on the first hinge seat 43. The first pin passes through the first slide groove. As the sliding rod 65 moves radially along the chuck body 40, the provision of the first slide groove ensures that the rocker arm 66 can swing normally. The rocker arm 66 is connected to the chuck body 40 via the first hinge seat 43 and the first pin, and the connection method is simple.

[0067] Specifically, if Figure 4 As shown, one end of the operating member 64 has a second slot, and the end of the slide rod structure 63 away from the gear 62 is provided with a second pin, which is located in the second slot. When the operating member 64 swings, the first pin slides in the second slot. One end of the operating member 64 has an opening, and the end of the slide rod structure 63 away from the gear 62 is provided with a connecting ear, which is fixed to the connecting ear and located in the opening. In this case, there are two second slots, located on both sides of the opening, and the two ends of the second pin are located in their corresponding second slots.

[0068] Specifically, if Figure 3 and Figure 4 As shown, a second hinge seat 44 is provided on the outer wall of the chuck body 40, and a third pin is provided on the operating member 64, which is rotatably connected to the second hinge seat 44. The operating member 64 is connected to the chuck body 40 through the second hinge seat 44 and the third pin for easy connection.

[0069] Preferably, if Figure 3 As shown, the first hinge seat 43 and the second hinge seat 44 are both U-shaped. It can be understood that, as an alternative embodiment, the first hinge seat 43 and the second hinge seat 44 include two opposite hinge plates, and the two hinge plates are not connected.

[0070] In this embodiment, the track winding and unwinding device further includes a locking mechanism disposed on the chuck body 40. The locking mechanism is configured to have a locked state in which the first active portion stops rotating and an unlocked state in which the first active portion rotates. When the plurality of claws 50 tighten the track roll 80, the locking mechanism is in the locked state. The locking mechanism locks the position of the cam 61, thereby locking the position of the claws 50, thereby improving the reliability of the claws 50 when tightening the track. Specifically, the locking mechanism can cooperate with a slide rod structure or an operating member, as long as the locking mechanism can achieve a fixed position of the slide rod structure or the operating member. Of course, the locking mechanism can also cooperate with the gear 62 or the cam 61.

[0071] In this embodiment, if Figure 2 、 Figure 3 and Figure 9 As shown, the clamping claw 50 includes a clamping plate 51 and a plurality of clamping strips 52 provided on the clamping plate 51. The clamping strips 52 are configured to be clamped in the grooves 81 of the crawler track roll 80. When the crawler track roll 80 is unfolded, the clamping strips 52 are clamped in the grooves 81 on the outer wall of the innermost crawler track, thereby preventing slippage when tightening the crawler track roll and improving tightening reliability.

[0072] In this embodiment, the crawler track winding and unwinding device further includes a power unit 30, which is in transmission connection with the chuck body 40 to drive the rotation of the chuck body 40. The power unit 30 drives the chuck body 40 to rotate to unwind or wind the crawler track roll 80, thereby automatically controlling the rotation of the chuck body 40.

[0073] In this embodiment, the power unit 30 includes a rotational drive source 31 and a third transmission mechanism 32. The output end of the rotational drive source 31 is transmission-connected to the chuck body 40 via the third transmission mechanism 32. It will be appreciated that, as an alternative embodiment, the third transmission mechanism 32 may not be provided, in which case the output end of the rotational drive source 31 is connected to the chuck body 40.

[0074] In this embodiment, the power unit 30 further includes a reducer 33, the input shaft of which is connected to the third transmission mechanism 32, and the output shaft of which is connected to the chuck body 40. The reducer 33 can reduce the speed of the motor, thereby controlling the unwinding speed of the crawler roll.

[0075] In this embodiment, the third transmission mechanism 32 is a belt drive or chain drive. The power unit 30 also includes a tensioning mechanism 34. The tensioning mechanism 34 tensions the transmission member 323, ensuring that the third transmission mechanism 32 can always transmit power and improving structural stability. Specifically, the tensioning mechanism 34 includes a fixed plate 342 and a tensioning pulley 341. The tensioning pulley 341 abuts the lower inner surface of the transmission member 323 of the third transmission mechanism 32. The tensioning pulley 341 and the fixed plate 342 are connected in a sliding manner for vertical movement.

[0076] Example 2

[0077] like Figure 9 As shown, the difference between the track winding and unfolding device of Example 2 and Example 1 is that the connection method between the clamping claw 50 and the rocker arm 66 is different. In Example 2, the clamping claw 50 and the rocker arm 66 are connected by a hinge structure other than the ball joint structure. For example, the hinge structure includes a third hinge seat and a fourth pin shaft, and the clamping claw 50 and the rocker arm 66 are connected together through the third hinge seat and the fourth pin shaft.

[0078] Furthermore, during production and assembly, the pre-packaged crawler tracks of excavators and other construction machinery are transported by forklift to the assembly line in the assembly workshop. The traditional method for unfolding the crawler tracks is to use a crane to lift one end of the track, gradually unfold it under its own weight, then install the undercarriage, and then use a crane to lift the other end of the track and install it on the undercarriage to complete the crawler track assembly. Due to the long length of the open-chain crawler track, a high height must be lifted to fully unfold the entire track, which makes the track prone to shaking, posing a safety hazard.

[0079] In order to solve the above problems, the present invention also provides a crawler winding and unfolding device, such as Figure 1 As shown, it includes: a track winding and unfolding device, a moving part 10 and a lifting part 20. The track winding and unfolding device includes a chuck body 40 and a tightening and loosening mechanism. The chuck body 40 can be rotated around its own rotation axis. The tightening and loosening mechanism is arranged on the chuck body 40. The tightening and loosening mechanism has a tightening state for tightening the track roll 80 to be assembled and a loosening state for loosening the track roll 80; the moving part 10 is configured to drive the track winding and unfolding device to move horizontally; the lifting part 20 is configured to drive the chuck body 40 to move up and down.

[0080] When assembling the track roll 80, the tightening and loosening mechanism tightens the track roll 80 to be assembled, and the chuck body 40 is driven to move by the moving part 10. At the same time, the track roll 80 is unfolded by the rotation of the chuck body 40. When half of the track roll 80 is unfolded, the chuck body 40 and the unfolded track roll are lifted as a whole by the lifting part 20, and then the moving part 10 moves in the opposite direction to unfold the unfolded track roll above the driving wheel of the lower frame, thereby completing the assembly of the entire track.

[0081] The above-mentioned track winding and unfolding equipment adopts a rotating manner to unfold or wind the track roll, which is more convenient and safer, and effectively avoids the safety hazards caused by lifting the track for assembly, and can also improve the assembly efficiency of the track. By controlling the rotation speed of the chuck body 40, the unfolding speed of the track roll is controlled, which effectively reduces the noise generated when assembling the track. During the rotation process of the chuck body 40, it can be ensured that the unfolded track is consistent with the extension direction of the assembly line, and there is no need to manually adjust the direction of the track. It effectively solves the problem of high labor intensity caused by the need for manual adjustment when the track is not parallel to the extension direction of the assembly line after unfolding in the prior art.

[0082] In addition, in some other usage scenarios, some other embodiments can be provided. In these embodiments, the crawler track winding and unwinding device can be provided with only one of the moving part 10 and the lifting part 20. When only the moving part 10 is provided, the crawler track roll 80 is unwound or wound by the movement of the moving part 10 and the rotation of the chuck body 40. The crawler track is quickly wound or fully unwound by the translational movement of the crawler track winding and unwinding device itself and the rotation of the chuck body 40, which saves time and effort, is safe, and convenient. Alternatively, when only the lifting part 20 is provided, the crawler track roll 80 is unwound or wound by the lifting of the lifting part 20 and the rotation of the chuck body 40. For example, in some usage scenarios, when unwinding the crawler track roll 80 onto a conveying platform or winding the crawler track roll 80 on the conveying platform, the crawler track winding and unwinding device can be used in conjunction with the conveying platform.

[0083] It should be noted that when the crawler track roll 80 is unfolded, the tightening and loosening mechanism tightens the innermost crawler track in the crawler track roll 80 .

[0084] It should be noted that when the crawler roll 80 is unfolded, the moving direction of the moving portion 10 is the same as the extending direction of the assembly line, and the rotation axis of the chuck body 40 is perpendicular to the extending direction of the assembly line.

[0085] In this embodiment, the lifting portion 20 is disposed on the moving portion 10 to simplify the overall structure. It is understood that, as an alternative embodiment, the moving portion 10 is disposed on the lifting portion 20.

[0086] In this embodiment, reference Figure 1 and Figure 7 As shown, the lifting part 20 includes: a fixed part 21, a lifting part 22 and a lifting drive mechanism 23. The fixed part 21 is arranged on the moving part 10; the lifting part 22 is arranged on the fixed part 21; the lifting drive mechanism 23 is arranged on the moving part 10 and connected to the lifting part 22 to drive the lifting part 22 to move up and down. Among them, the chuck body 40 is rotatably arranged on the lifting part 22. As the crawler track is unfolded, the radius enclosed by the innermost crawler track remains unchanged. The lifting drive mechanism 23 drives the lifting part 22 to descend, driving the chuck body 40 to descend, so that the center position of the innermost crawler track is lowered, realizing the smooth unfolding of the crawler track roll. When the crawler track roll is half unfolded, the lifting drive mechanism 23 drives the lifting part 22 to rise, and the unfolded crawler track roll can be lifted above the drive wheel, making it convenient to unfold the unfolded crawler track roll above the drive wheel of the lower frame.

[0087] Specifically, the lifting drive mechanism 23 includes a winch and a pulley. The winch is mounted on the movable portion 10, and a pulley 231 is mounted on the fixed member 21. The free end of the winch's wire rope 232 passes over the pulley 231 and is connected to the lifting member 22. The winch's motor drives the drum to rotate, thereby winding or unwinding the wire rope 232. It is understood that, as an alternative embodiment, the lifting drive mechanism 23 is a linear drive mechanism such as a pneumatic cylinder, a hydraulic cylinder, or an electric cylinder.

[0088] In this embodiment, the fixing member 21 comprises two opposed vertical plates, and the lifting member 22 comprises two lifting bearing blocks that slide in conjunction with the vertical plates. The fixing member 21 and the lifting member 22 have simple structures and low cost. Specifically, the two sides of the vertical plates serve as guide rails, and the ends of the lifting bearing blocks have guide slots that engage with the guide rails. It is understood that, as an alternative embodiment, a linear slide rail can be provided between the lifting bearing blocks and the vertical plates. The linear slide rail comprises a guide rail and a slider, the slider being mounted on the lifting bearing blocks, the guide rail being mounted on the vertical plates, and the slider slidingly engaging with the guide rail.

[0089] In this embodiment, the power unit 30 is in transmission connection with the chuck body 40 to drive the rotation of the chuck body 40. Part of the power unit 30 is disposed on the movable portion 10, and the remaining part is disposed on the lifting portion 20. It will be appreciated that, as an alternative embodiment, the power unit 30 may be omitted and a bracket may be provided on which the chuck body 40 is rotatably mounted. When the crawler track is deployed, the free end of the crawler track is first fixed, and then the rotation of the chuck body 40 is achieved by moving the movable portion 10.

[0090] In this embodiment, if Figure 1 and Figure 7 As shown, the rotary drive source 31 is disposed on the moving portion 10, and the rotary drive source 31 drives the transmission mechanism 32 to move, thereby driving the chuck body 40 to rotate. It will be appreciated that, as an alternative embodiment, all components of the power unit 30 are disposed on the lifting member 22, specifically, the lifting member 22 is a lifting plate, and the rotary drive source 31 is disposed on the lifting plate. In this case, the transmission mechanism 32 may not be provided, and the rotary drive source 31 is connected to the chuck body 40.

[0091] Specifically, the rotation driving source 31 is a motor, which is easy to use and convenient to connect with the transmission mechanism 32. Of course, the rotation driving source 31 can also be a rotary cylinder or the like.

[0092] In this embodiment, the reducer 33 is fixed on the lifting member 22, and the reducer 33 is connected to the chuck body 40 through a coupling. A connecting shaft 45 is provided on the side of the chuck body 40 facing the power unit 30. The connecting shaft 45 and the output shaft of the reducer 33 are connected through a coupling, and the connection method is simple.

[0093] In this embodiment, the belt drive mechanism or chain drive mechanism includes a driving pulley 321, a driven pulley 322, and a transmission member 323. The driving pulley 321 is connected to the output shaft of the rotary drive source 31, the driven pulley 322 is connected to the input shaft of the reducer 33, and the transmission member 323 is sleeved on the driving pulley 321 and the driven pulley 322. The transmission member is a transmission belt or a transmission chain. The belt drive mechanism or chain drive mechanism achieves power transmission, resulting in a simpler structure.

[0094] In this embodiment, the tensioning mechanism 34 is disposed on the movable portion 10. The tensioning pulley 341 abuts the bottom surface of the lifting member 22, and the fixing plate 342 is fixed to the movable portion 10. When the lifting member 22 descends, the lifting member 22 drives the tensioning pulley 341 downward. The tensioning pulley 341, under the action of its own weight and the lifting member 22, tensions the transmission member. When the lifting member 22 ascends, the tensioning pulley 341, under the action of its own weight, presses against the lower inner surface of the transmission member. Specifically, the tensioning pulley 341 has a shaft, and the fixing plate 342 has an elongated hole. The shaft is located in the elongated hole and can slide in the elongated hole as the lifting member 22 rises and falls. It is understood that, as an alternative embodiment, the tensioning mechanism 34 can also be disposed on the lifting member 22.

[0095] In this embodiment, the moving part 10 is a moving cart, which is easy to use and low in cost.

[0096] In this embodiment, a counterweight is provided on the moving part 10, and the counterweight is arranged on the side of the moving part 10 away from the chuck body 40. Since the side where the chuck body 40 is located is heavier, the counterweight can balance the weight of the chuck body 40 and ensure the normal operation of the crawler winding and unwinding device.

[0097] The present invention also provides an assembly line comprising the aforementioned crawler track winding and unwinding equipment or the aforementioned crawler track winding and unwinding device. The entire rolled crawler track is unrolled by rotation, effectively reducing manpower, ensuring safety, and facilitating automation. The unrolled crawler track is maintained parallel to the assembly line, facilitating the next process.

[0098] In this embodiment, there are two track winding and unfolding devices, which correspond to the two sides of the track. The track is tightened by the two track winding and unfolding devices, which improves the tightening reliability and makes the track unfolding process smoother.

[0099] In this embodiment, the assembly production line is used to assemble mechanical equipment with tracks, and the mechanical equipment is engineering machinery, etc., wherein the engineering machinery is an excavator, a crane, a rotary drilling rig, etc.

[0100] The following is an explanation of the working process of the crawler winding and unfolding equipment:

[0101] When not working, Figure 2 The sliding rod 65 is at the lowest position of the cam 61, and the front end of the rocker arm 66 is tilted up under the action of the second spring, and the claw 50 is then at the highest position. Then, the operation begins. The manual operation lever drives the sliding rod structure 63 to move, and then drives the gear 62 and the cam 61 connected to the gear 62 to rotate. The sliding rod 65 moves outward along the radial direction of the chuck body 40 under the action of the cam 61, pushing up the rear end of the rocker arm 66. The front end of the rocker arm 66 moves inward, and the claw 50 moves inward accordingly. The claw 50 is stuck in the groove 81 on the outer side of the innermost crawler track of the crawler roll 80, as shown in FIG. Figure 9 Shown, grasp the work preparation quickly. Wherein, the front end refers to an end near the crawler belt roll 80, and the rear end refers to an end away from the crawler belt roll 80.

[0102] The next step is to drive the chuck body 40 to rotate. Figure 1 As shown, the motor is used to drive the chuck, which is then transmitted through the third transmission mechanism 32 and decelerated by the reducer to reach the chuck body 40. The reducer and the chuck body 40 are connected by a coupling.

[0103] During the unfolding process of the track roll 80, the radius of the circle formed by the innermost track remains unchanged. However, as the track roll 80 unfolds, the center position of the circle formed by the innermost track is lowered. During the rotation process, there is also an overall downward movement, which is completed by the lifting part 20.

[0104] When the track roll 80 is half unfolded, the lower frame is installed on the upper side of the half-unfolded track by an automatic robot, and the lifting part 20 on the mobile trolley is adjusted to lift the chuck body 40 and the unfolded track roll as a whole. At this time, the mobile trolley moves in the opposite direction and unfolds the unfolded track roll above the driving wheel of the lower frame, thereby completing the assembly of the entire track.

[0105] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0106] The crawler track winding and unfolding device comprises a mobile trolley, a lifting part 20 and a crawler track winding and unfolding device. When working, the two crawler track winding and unfolding devices are clamped on both sides of the wound crawler track. Each crawler track winding and unfolding device comprises a chuck body 40, a clamping claw 50, a cam 61, a sliding rod 65, a rocker arm 66, a gear, a rack and an operating rod, etc. The mobile trolley provides support for the crawler track winding and unfolding device, and the power part 30 provides power for the chuck body 40 to unfold the entire wound crawler track in a rotating manner. This can avoid the safety hazards caused by lifting the crawler track and also improve work efficiency. By controlling the rotation speed of the wound crawler track, the noise caused by the crawler track falling due to its own weight is reduced. During the rotation process, the direction of the crawler track can be ensured to be consistent before and after unfolding, which effectively solves the problems of safety hazards in crawler track assembly, low crawler track unfolding efficiency, high noise, and non-parallel crawler track and assembly line direction after unfolding in the prior art.

[0107] 2. The power unit 30 includes a speed reducer 33, which can control the speed of the crawler track roll-up to reduce noise generation, effectively solving the problem of loud noise when the crawler track is unfolded by its own gravity in the prior art.

[0108] 3. The first transmission mechanism includes a cam 61, a sliding rod 65 and a rocker arm 66. The rotation of the cam 61 drives the sliding rod 65 to move radially along the chuck body 40, thereby driving the rocker arm 66 to swing, so that the claw 50 can grasp and release the crawler track.

[0109] 4. The claw 50 and the rocker arm 66 are connected by a ball joint structure, and the claw 50 is in a fuzzy position when contacting the track.

[0110] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A crawler track winding and unfolding device, characterized in that: include: The chuck body is rotatable about its own rotation axis; a tightening and loosening mechanism, provided on the chuck body, the tightening and loosening mechanism having a tightening state for tightening the track roll to be assembled and a loosening state for loosening the track roll, so as to unfold or wind the track roll by rotating the chuck body; The tightening and loosening mechanism comprises: a plurality of jaws spaced apart around the rotation axis of the chuck body and configured to tighten or loosen the track roll; a driving portion connected to the plurality of claws, the driving portion being configured to drive the plurality of claws toward or away from the rotation axis; The driving unit includes a first transmission mechanism, and the first transmission mechanism includes: A first active portion, which can be driven to rotate and is disposed on the chuck body; a plurality of first driven parts, each corresponding to the plurality of claws, being provided on the chuck body, wherein the plurality of first driven parts are in transmission cooperation with the first active part, and the rotation of the first active part can drive the first driven parts to move, so that the plurality of claws can move closer to or farther away from the rotation axis; The first active part is a cam, and the outer wall of the cam has a plurality of arc-shaped convex parts and a plurality of arc-shaped concave parts, and two adjacent arc-shaped convex parts are connected by one arc-shaped concave part. The first driven part is a rod transmission mechanism; Wherein, when the arc-shaped convex portion cooperates with the rod transmission mechanism, the clamping claw is close to the rotation axis; when the arc-shaped concave portion cooperates with the rod transmission mechanism, the clamping claw is away from the rotation axis.

2. The crawler track winding and unfolding device according to claim 1, characterized in that: The rod transmission mechanism comprises: a sliding rod, movably arranged on the chuck body along its own axial direction, wherein the inner end of the sliding rod abuts against the outer wall of the cam; A rocker arm, a first end of which cooperates with the outer end of the sliding rod, a second end of which is connected to the claw, and a portion between the first end and the second end of the rocker arm is hinged on the chuck body.

3. The crawler track winding and unfolding device according to claim 2, characterized in that: The driving unit further includes: The reset member is arranged on the chuck body and is configured to provide a force for resetting the rocker arm and / or the sliding rod.

4. The crawler track winding and unwinding device according to any one of claims 1 to 3, characterized in that: The driving unit further includes a second transmission mechanism, and the second transmission mechanism includes: a second active portion, movably disposed on the chuck body; The second driven part is coaxially connected to the first active part. The second driven part and the second active part are in transmission cooperation. The second active part is configured to drive the second driven part to rotate.

5. The crawler track winding and unwinding device according to claim 4, characterized in that: The second active part is a sliding rod structure at least partially provided with a rack, the second driven part is a gear structure, and the second active part and the second driven part are driven by the gear structure and the rack; Among them, the end of the second active part away from the second driven part passes through the outer wall of the chuck body, and the driving part also includes an operating member, which is arranged on the outer wall of the chuck body, and is connected to the end of the second active part away from the second driven part. The operating member is configured to drive the second active part to move.

6. The crawler track winding and unwinding device according to any one of claims 1 to 3, characterized in that: The crawler track winding and unfolding device also includes: A locking mechanism is provided on the chuck body, and the locking mechanism is constructed to have a locking state in which the first active part stops rotating and an unlocking state in which the first active part rotates. When the plurality of claws tighten the track roll, the locking mechanism is in the locking state.

7. The crawler track winding and unwinding device according to any one of claims 1 to 3, characterized in that: The claws include: Pallet; A plurality of clamping strips are provided on the clamping plate, and the clamping strips are configured to be clamped in the grooves of the crawler roll.

8. The crawler track winding and unwinding device according to any one of claims 1 to 3, characterized in that: The crawler track winding and unfolding device also includes: The power unit is in transmission connection with the chuck body to drive the chuck body to rotate.

9. The crawler track winding and unwinding device according to claim 8, characterized in that: The power unit includes: a rotational drive source; A third transmission mechanism, wherein the output end of the rotation drive source is transmission-connected to the chuck body through the third transmission mechanism.

10. The crawler track winding and unwinding device according to claim 9, characterized in that: The power unit also includes: A reducer, an input shaft of which is connected to the third transmission mechanism, and an output shaft of the reducer is connected to the chuck body.

11. The crawler track winding and unwinding device according to claim 9, characterized in that: The third transmission mechanism is a belt transmission mechanism or a chain transmission mechanism, and the power unit further includes a tensioning mechanism, which includes: Fixed plate; The tensioner is in contact with the lower inner surface of the transmission member of the third transmission mechanism, and the tensioner is slidably connected to the fixing plate so as to be movable up and down.

12. A crawler track winding and unfolding device, characterized in that: include: The crawler track winding and unwinding device according to any one of claims 1 to 11; The crawler track winding and unfolding device also includes: a moving portion configured to drive the crawler winding and unwinding device to move horizontally; and / or, The lifting part is configured to drive the chuck body to move up and down.

13. The crawler track winding and unwinding device according to claim 12, characterized in that: When the crawler track winding and unfolding device includes a lifting part, the lifting part includes: fixings; A lifting member, arranged on the fixing member; A lifting drive mechanism connected to the lifting member to drive the lifting member to move up and down; Wherein, the chuck body is rotatably arranged on the lifting member.

14. An assembly production line, characterized in that: The crawler track winding and unwinding device comprises the crawler track winding and unwinding equipment according to claim 12 or 13 or the crawler track winding and unwinding device according to any one of claims 1 to 11.

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