Traction chain tensioning device

Abstract

The utility model discloses a traction chain tensioning device, which is characterized in that the lower part of a bracket weldment is provided with a redirection smooth wheel, the tail end of a traction chain bypasses the redirection smooth wheel and extends upwards, the inner side and the outer side of the traction chain are clamped by an inner clamping plate and an outer clamping plate, and the upper end and the lower end of the inner clamping plate are respectively and fixedly provided with an inner clamping plate sliding shaft; the two ends of the inner clamping plate sliding shaft are embedded into opposite groove openings of the two rail grooves respectively, and the inner side walls of the two rail grooves are fixedly connected to the two sides of the upper portion of the support weldment respectively. The outer clamping plate is provided with a clamping plate clamping jaw embedded between chain links of the traction chain, and the left side and the right side of the outer clamping plate are fixedly connected with the inner clamping plate through clamping plate screws; an outer clamping plate base bent outwards is welded to the bottom of the outer clamping plate, a tensioning oil cylinder is connected to the lower portion of the outer clamping plate base, and the bottom of the tensioning oil cylinder is supported on the ground. The top of the support weldment is provided with a support clamping jaw which can be embedded between chain links of the traction chain. The device is convenient to operate, time-saving, labor-saving, safe, reliable, capable of being adjusted in a repeated relay mode and large enough in tensioning range.

Description

TECHNICAL FIELD

[0001] The utility model relates to a walking mechanism of a warehouse outlet machine, especially relates to a traction chain tensioning device and belongs to the technical field of chain tensioning device. BACKGROUND

[0002] The stacking yard of the flat warehouse is rectangular, the width of the stacking yard is relatively wide, the material pile is usually relatively high, and the depth sometimes reaches more than 200 m. A plurality of traction chains are buried in the ground in the depth direction of the flat warehouse, and the walking mechanism of the warehouse outlet machine is provided with a walking sprocket, and the walking sprocket advances along the traction chains to drive the warehouse outlet machine to advance. Since the length of the traction chain is relatively long, the walking tensioning device needs to be tensioned, and one end of the walking tensioning device can be selected to be installed, or the walking tensioning device can be installed at both ends simultaneously.

[0003] The utility model discloses a warehouse outlet machine walking mechanism, wherein the walking tensioning device comprises a traction chain tensioning rod hinged at the end of the traction chain, the root of the traction chain tensioning rod is sleeved with an internal screw rod sleeve, the external thread of the internal screw rod sleeve is screwed in the internal nut, the internal nut is fixed on the inner side wall plate of the walking tensioning support, the outer end face of the internal screw rod sleeve is pressed with the walking tensioning spring, and the outer side of the walking tensioning spring abuts against the shaft shoulder of the traction chain tensioning rod.

[0004] The walking tensioning device has the following defects: 1. Since the length of the traction chain is particularly long, the adjustment range of the walking tensioning spring cannot meet the adjustment range of the traction chain, and the traction cannot be relayed;

[0005] 2. One turn of the nut can only advance one pitch along the tensioning rod, the adjustment speed is too slow, and time and effort are wasted;

[0006] 3. The tensioning spring always bears huge tensioning force, and the elasticity is prone to decline. CONTENT OF THE UTILITY MODEL

[0007] The purpose of this part is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this part and the abstract of the specification and the utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0008] In view of the above and / or problems existing in the prior art, the utility model is proposed.

[0009] The utility model aims at overcoming the problems existing in the prior art, providing a traction chain tensioning device, which is convenient to operate, saves time and effort, safe and reliable, can be adjusted by relay multiple times, and has a large enough tensioning range.

[0010] In order to solve the above technical problems, the utility model discloses a traction chain tensioning device, including the support welding spare of bottom fixed ground, the lower portion of support welding spare is equipped with the redirection light wheel, the end of traction chain is extended upwards around redirection light wheel, the inside and outside both sides of traction chain are clamped by inner clamping plate and outer clamping plate, the upper and lower ends of inner clamping plate are fixed with inner clamping plate sliding axle respectively, the both ends of inner clamping plate sliding axle are embedded in the opposite notches of two track grooves respectively, and the inner side wall of two track grooves is fixedly connected to the upper portion of support welding spare respectively.

[0011] As the improvement of the utility model, the top of the support welding spare is provided with a support claw capable of being embedded between the chain links of the traction chain on the side close to the traction chain.

[0012] As the further improvement of the utility model, the outer side wall of the two track grooves is provided with a row of track groove adjusting screw holes along the height direction, the upper side and / or the lower side of the outer clamping plate is provided with a limiting clamp plate, the both ends of the limiting clamp plate are respectively screwed in the corresponding track groove adjusting screw holes through screws, and the middle part of the limiting plate is provided with a limiting plate claw capable of being embedded between the chain links of the traction chain.

[0013] Compared with the prior art, the utility model has the following beneficial effects: 1. The traction chain is tensioned by the outer clamping plate and the claw embedded in the chain links, and the inner clamping plate sliding axle slides along the notch of the track groove upwards in the process, so that the traction chain is tensioned without manual operation, saving time and effort.

[0014] 2. If the extension of the tensioning oil cylinder cannot meet the tensioning requirement at one time, the traction chain can be temporarily fixed on the support welding spare, the clamping screws are disassembled, the inner and outer clamping plates are slid downwards by a distance and then clamped and fixed again, and then the tensioning oil cylinder is extended upwards again; this can be repeated for several times until the traction chain is tensioned.

[0015] 3. After tensioning, the traction chain can be fixed by the support claw, and the traction chain can be further fixed by the limiting plate claw, and the tensioning oil cylinder does not need to be stressed. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings described in the following are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor based on these drawings. The drawings are provided for reference and illustration only, and are not intended to limit the present application. Among them:

[0017] Figure 1 It is a perspective view of the traction chain tensioning device of the present application;

[0018] Figure 2 It is an exploded view of the traction chain tensioning device of the present application;

[0019] In the figure: 1. support welding; 1a. support welding flange; 1b. support clamping jaw; 2. change direction light wheel; 3. inner clamping plate; 3a. inner clamping plate slide shaft; 4. outer clamping plate; 4a. clamping plate clamping jaw; 4b. outer clamping plate boss; 4c. outer clamping plate base; 4d. clamping plate screw; 5. track groove; 5a. track groove adjusting screw hole; 6. tensioning oil cylinder; 7. limiting plate; 7a. limiting plate clamping jaw; 8. traction chain. DETAILED DESCRIPTION

[0020] In the following description of the present application, the terms "upper", "lower", "front", "back", "left", "right", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not mean that the device must have a particular orientation.

[0021] In order to make the technical means, creative features, purposes and effects achieved by the present application easy to understand, the following will further describe the present application in combination with specific drawings. Obviously, the described embodiments are only some embodiments of the present application, not all embodiments.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing the specific embodiments, and are not intended to limit the present application.

[0023] As Figure 1 , Figure 2As shown, the traction chain tensioning device comprises a support welding piece 1, a redirecting light wheel 2, an inner clamping plate 3, an outer clamping plate 4, a track groove 5, a tensioning oil cylinder 6 and a limiting plate 7, the bottom of the support welding piece 1 is fixed to the ground, a pair of redirecting light wheels 2 are installed at the lower part of the support welding piece 1, the lower redirecting light wheel 2 is located in the bottom inner cavity of the support welding piece 1, and the upper redirecting light wheel 2 is close to the outer side.

[0024] A support fixing plate is welded on the side of the upper part of the support welding piece 1 facing the traction chain 8, the side walls of the support welding piece 1 beyond the support fixing plate form a support welding piece flange 1a, a plurality of screw holes are formed in the support welding piece flange 1a, and the track grooves 5 are fixed in the screw holes, and the openings of the two track grooves 5 are opposite to each other.

[0025] The inner clamping plate 3 is placed on the inner side of the traction chain 8, that is, between the traction chain 8 and the support fixing plate, and the upper and lower ends of the inner clamping plate 3 are respectively fixed with inner clamping plate sliding shafts 3a, the two ends of the inner clamping plate sliding shafts 3a are respectively embedded in the opposite grooves of the two track grooves 5, and the inner clamping plate sliding shafts 3a and the inner clamping plate 3 are ensured to ascend and descend along the track grooves 5.

[0026] The outer clamping plate 4 is located on the outer side of the traction chain 8, the end face of the outer clamping plate 4 facing the traction chain 8 is provided with a clamping plate pawl 4a, the clamping plate pawl 4a is embedded between the chain links of the traction chain 8 and clamps two chain links, the left and right sides of the outer clamping plate 4 are provided with outer clamping plate bosses 4b, the outer clamping plate bosses 4b abut against the inner clamping plate 3, clamping screws 4d pass through the through holes of the outer clamping plate bosses 4b and are screwed into the screw holes of the inner clamping plate 3, so that the outer clamping plate 4 and the inner clamping plate 3 are fixedly connected.

[0027] The bottom of the outer clamping plate 4 is welded with an outwardly bent outer clamping plate base 4c, and the top of the outer clamping plate base 4c and the outer wall of the outer clamping plate 4 are connected in an integrated manner through a triangular rib plate, the bottom of the tensioning oil cylinder 6 is supported on the ground, and the top of the piston rod of the tensioning oil cylinder 6 is hinged below the outer clamping plate base 4c.

[0028] The top of the support welding piece 1 is provided with a support pawl 1b extending towards the traction chain 8, and the support pawl 1b is embedded between the chain links of the traction chain 8 to clamp the traction chain 8.

[0029] A row of track groove adjusting screw holes 5a is formed in the outer side walls of the two track grooves 5 along the height direction, and a limiting clamping plate is arranged on the upper side or the lower side of the outer clamping plate 4, or limiting clamping plates are arranged on the upper side and the lower side. The two ends of the limiting clamping plate are respectively screwed in the corresponding track groove adjusting screw holes 5a, the middle part of the limiting plate 7 is provided with a limiting plate pawl 7a, and the limiting plate pawl 7a is embedded between the chain links to lock the traction chain 8.

[0030] When tensioning, the tensioning oil cylinder 6 is pushed out upward, the outer clamping plate 4 and the clamping plate pawl 4a are driven to go up by the outer clamping plate base 4c, the clamping plate pawl 4a is embedded in the chain link to drive the end of the traction chain 8 to go up, in this process, the inner clamping plate sliding shaft 3a slides upward along the slot of the track groove 5 to avoid skewing. Then the traction chain 8 is bent to the top of the support welding piece 1, and the support pawl 1b is embedded between the chain links of the traction chain 8 to lock the traction chain 8, then the clamping plate screw 4d is loosened, the piston rod of the tensioning oil cylinder 6 is retracted, the outer clamping plate 4 and the outer clamping plate base 4c are lowered to the low position, and the inner clamping plate 3 also slides down to the low position, after confirming that the clamping plate pawl 4a is clamped in the lower chain link, the clamping plate screw 4d is reinstalled to lock the inner clamping plate 3 and the outer clamping plate 4, and the next round of lifting tensioning of the tensioning oil cylinder 6 can be carried out.

[0031] After the traction chain 8 is tensioned in place, the free end of the traction chain 8 can be clamped into the support pawl 1b to achieve locking, or a limiting plate 7 can be installed to further lock through the limiting plate pawl 7a.

[0032] The above only describes the preferred and feasible embodiments of the utility model, shows and describes the basic principles, main features and advantages of the utility model, and is not limited to the patent protection range of the utility model. The skilled in the art should understand that the utility model is not limited by the above embodiments. In addition to the above embodiments, the utility model can have other implementation manners without departing from the spirit and scope of the utility model. The utility model will have various changes and improvements, and any technical solution formed by equivalent replacement or equivalent transformation falls within the protection scope of the utility model. The protection scope of the utility model is defined by the appended claims and their equivalents. The technical features not described in the utility model can be realized by or with the prior art, and will not be described here.

Claims

1. A tensioning device for a traction chain, comprising a bracket weld fixed to the ground at the bottom, characterized in that: The lower part of the support welding piece is provided with a redirecting light wheel, the end of the traction chain extends upwards around the redirecting light wheel, the inner and outer sides of the traction chain are clamped by the inner clamping plate and the outer clamping plate, the upper and lower ends of the inner clamping plate are respectively fixed with inner clamping plate sliding shafts, the two ends of the inner clamping plate sliding shafts are respectively embedded in the opposite notches of the two track grooves, the inner side walls of the two track grooves are respectively fixedly connected to the upper sides of the support welding piece; the outer clamping plate is provided with clamping plate pawls embedded between the chain links of the traction chain, the left and right sides of the outer clamping plate are fixedly connected with the inner clamping plate through clamping plate screws; the bottom of the outer clamping plate is welded with an outwardly bent outer clamping plate base, a tensioning oil cylinder is connected below the outer clamping plate base, and the bottom of the tensioning oil cylinder is supported on the ground.

2. A traction chain tensioner according to claim 1, characterised in that: The top of the support welding piece is provided with a support pawl capable of being embedded between the chain links of the traction chain on the side close to the traction chain.

3. A traction chain tensioner according to claim 1 or 2, characterised in that: The outer side walls of the two track grooves are provided with a row of track groove adjusting screw holes in the height direction, the upper side and / or the lower side of the outer clamping plate is provided with a limiting plate, the two ends of the limiting plate are respectively screwed in the corresponding track groove adjusting screw holes, and the middle part of the limiting plate is provided with a limiting plate pawl embedded between the chain links of the traction chain.

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