Chain type reciprocating driving device and telescopic cover

Abstract

The utility model relates to a chain type reciprocating driving device and a telescopic cover, which comprise chain links which are plate-shaped or block-shaped, the edges of the adjacent chain links can be tightly attached, and a chain is formed by a plurality of sections of chain links; the chain wheel rotates to drive the chain links to do reciprocating motion; the rolling shafts are located at the ends, facing the chain wheels, of the chain links, so that the adjacent and attached chain links can only rotate in the direction of the chain wheels; the direction of the chain is changed by means of the chain wheel, and any end of the chain can reciprocate under the rotation action of the chain wheel; the telescopic cover comprises the reciprocating driving device; the conveying track is a groove body for supporting the chain; the cover body is a plate-shaped body which reciprocates by means of the reciprocating driving device, and one end of the cover body is connected with the chain; the supporting rail is used for supporting the rail of the cover body; the driving mechanism drives the chain wheel to rotate; the device has the beneficial effect that pushing reciprocating transmission is realized by utilizing a chain structure.

Description

Technical Field

[0001] The utility model belongs to the field of mechanical drive, and particularly relates to a chain-type reciprocating drive device and a telescopic cover. Background Art

[0002] In the process of steel rolling production, the formed steel needs to be slowly cooled on a cooling bed. For some specific high-quality special steel products, it needs to be kept at a certain high temperature before sawing after leaving the cooling bed. Therefore, a heat preservation cover needs to be installed above the cooling bed to reduce the cooling rate of the high-quality special steel products and ensure the temperature before sawing. Since the overall width of the cooling bed is relatively large (generally exceeding 10 meters), in order to ensure that the heat preservation cover does not bend or collapse, and to facilitate the hanging operation of the overhead crane in case of steel jamming, the heat preservation cover must be designed as a movable structure.

[0003] The inventor found in the study of the prior art that the traditional moving methods of the heat preservation cover are three types: hydraulic cylinder drive, electric push rod drive, and overhead crane-assisted folding. Since the steel billets stored on the cooling bed are in a red-hot state and the environmental temperature caused by heat radiation is relatively high, the traditional moving mechanism driven by a hydraulic system is prone to faults such as too low driving efficiency or even high-temperature shutdown due to too high oil temperature. And because a dedicated hydraulic station needs to be configured, it occupies the workshop space, and the layout of the hydraulic pipeline is also greatly restricted by the site. Also, because the moving distance of the movable cover is relatively long, when using an electric push rod, the length-diameter ratio of the push rod is too large, so it is prone to jamming and bending. If the bending deformation of the push rod is guaranteed, the motor is too large, resulting in power waste. The overhead crane-assisted folding method requires an overhead crane, and due to the high temperature, the hanging personnel cannot adjust the opening degree of the heat preservation cover at any time according to the change of steel types during the production process. Therefore, the strain capacity is poor and the accuracy is low.

[0004] Therefore, there is an urgent need for a simple drive device and a heat preservation telescopic cover in a high-temperature state that can overcome the problems in the prior art. Summary of the Invention

[0005] To overcome the problems in the prior art, the inventor adopts a plate chain drive with the hinge points at the edges, and realizes the reciprocating movement only in the form of a chain during the pushing process to complete the drive and the telescoping of the cover body. The technical solution adopted by the utility model is as follows: a chain-type reciprocating drive device, comprising:

[0006] Chain links, which are plate-shaped or block-shaped, and the edges of adjacent chain links can be closely fitted, and multiple segments of the chain links form a chain;

[0007] Sprockets, which drive the chain links to reciprocate through rotation;

[0008] Roller shafts, which are located at one end of the chain link facing the sprocket, so that the adjacent and fitted chain links can only rotate towards the sprocket direction;

[0009] The chain changes its direction by means of the sprocket wheel, and either end can reciprocate under the rotation of the sprocket wheel.

[0010] A telescopic cover, comprising:

[0011] The reciprocating drive device;

[0012] A conveying track, which is a trough body for supporting the chain;

[0013] A cover body, which is a plate-shaped body that reciprocates by means of the reciprocating drive device, and one end is connected to the chain;

[0014] A supporting track, which is a track for supporting the cover body;

[0015] A drive mechanism, which drives the sprocket wheel to rotate;

[0016] The conveying track and the supporting track are arranged in parallel, and the sprocket wheel is located at the same end of the conveying track and the supporting track.

[0017] Furthermore,

[0018] Rollers are further arranged on the cover body, and the rollers cooperate with the supporting track to enable the cover body to slide on the supporting track.

[0019] Furthermore,

[0020] The conveying track and the supporting track are arranged horizontally.

[0021] Furthermore,

[0022] The conveying track is a hollow cuboid or barrel-shaped body, and the cover body is located inside the conveying track.

[0023] Furthermore,

[0024] There are multiple groups of the reciprocating drive devices, and the drive mechanism synchronously drives the sprocket wheels in the multiple groups of the reciprocating drive devices.

[0025] Furthermore,

[0026] The telescopic cover is used for heat insulation in the high-temperature space in the steel rolling process.

[0027] The beneficial effects of the present utility model compared with the prior art are as follows: 1) Utilize the chain structure to achieve push-type reciprocating transmission; 2) Provide a driving mode for the cover body that adopts chain reciprocating transmission. Description of the Drawings

[0028] Figure 1 It is the front view of the chain-type reciprocating drive device in the specific embodiment of the present utility model;

[0029] Figure 2This is the front view of the telescopic cover in the specific embodiment of the present utility model;

[0030] Figure 3 This is the top view of the telescopic cover in the specific embodiment of the present utility model;

[0031] The markings are as follows:

[0032] 100 - reciprocating drive device; 110 - link; 120 - roller; 130 - sprocket wheel;

[0033] 200 - conveying track; 300 - support track; 400 - cover body; 410 - roller; 500 - drive mechanism. Specific embodiment

[0034] The technical solutions in the embodiments are described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of them. In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model.

[0035] To overcome the problems in the prior art, the inventor adopts a plate chain drive with the hinge point at the edge, realizing that only through the reciprocating motion in the form of a chain during the pushing process, the driving and the telescoping of the cover body are completed. Please refer to Figures 1 to 3 , the technical solution of this specific embodiment is: Please refer to Figure 1 , a chain-type reciprocating drive device, comprising:

[0036] Link 110, which is plate-shaped or block-shaped, and the edges of adjacent links 110 can be closely fitted, and multiple links 110 form a chain; Please refer to Figure 1 The joint of two links 110 is a rectangular straight-line fit. Based on the concept of the present invention, it can be considered that a curved or other form of fit, while only rotating around one end, the other end cannot be flipped due to the width of the link 110 and the limitation of the hinge point, and thus when the chain deforms on one side, a straight-line pushing reciprocating motion can be achieved.

[0037] Sprocket wheel 130, which drives the link 110 to reciprocate through rotation; Of course, in the technical solution, the pitch of the sprocket wheel 130 should be matched with the link 110.

[0038] The roller 130 is located at one end of the link 110 facing the sprocket 130, enabling the adjacent and mating links 110 to rotate only in the direction towards the sprocket 130. Since the chain needs to change direction and then achieve linear pushing, the roller 130 is required, that is, the hinge point is on the side facing the sprocket 130.

[0039] The chain changes its direction by means of the sprocket 130, and either end can reciprocate under the rotational action of the sprocket 130. In this technical solution, by using the chain's direction change and the setting of the hinge point on the link 110, the reciprocating motion of the sprocket is achieved.

[0040] Please refer to Figure 2 , on the basis of using the reciprocating drive device 100, a telescopic cover is proposed, including:

[0041] The reciprocating drive device 100;

[0042] The conveying track 200, which is a trough for supporting the chain; a chute for providing a path for the chain.

[0043] The cover body 400, which is a plate-shaped body that reciprocates by means of the reciprocating drive device 100, and one end is connected to the chain; according to the heat preservation requirements, the cover body 400 can be a heat preservation cover of any material.

[0044] The support track 300, a track for supporting the cover body 400; it should be noted that in specific implementation, if the center of gravity of the cover body 400 does not exceed the edge of the support track 300, when the chain only provides linear reciprocating power, the support track 300 can be a support structure similar to a rod shape. If the center of gravity needs to exceed the edge, a barrel-shaped one is required to limit its vertical flipping.

[0045] The drive mechanism 500, which drives the sprocket 130 to rotate;

[0046] The conveying track 200 and the support track 300 are arranged in parallel, and the sprocket 130 is located at the same end of the conveying track 200 and the support track 300. Please refer to Figure 2 , the parallel arrangement mentioned in the technical solution refers to the up-and-down parallel arrangement. In some technical solutions, the cover body can be arranged in the upper part, and the same can be achieved. Of course, if there is an inclined or vertical cover body similar to the opening and closing of a gate, this technical solution can also be adopted. In the above technical solutions, the gravity is borne by the hinge point, and relatively high requirements are imposed on the roller 130.

[0047] In some other embodiments, in order to reduce the pulling force of the reciprocating motion and reduce the friction force,

[0048] The cover body 400 is further provided with rollers 410 which cooperate with the support rail 300 to enable the cover body 400 to slide on the support rail 300.

[0049] In some embodiments, preferably,

[0050] The conveying rail 200 and the support rail 300 are horizontally arranged.

[0051] In some embodiments, preferably,

[0052] The conveying rail 200 is a hollow cuboid or barrel-shaped body, and the cover body 400 is located inside the conveying rail 200.

[0053] Please refer to Figure 3 , in some embodiments, preferably,

[0054] There are multiple groups of the reciprocating driving devices 100, and the driving mechanism 500 synchronously drives the sprockets 130 in the multiple groups of the reciprocating driving devices 100.

[0055] In some embodiments, in order to overcome the problem of high temperature in the prior art, the technical solution described in the present utility model can be adopted.

[0056] The telescopic cover is used for heat preservation in the high-temperature space of the steel rolling process.

[0057] During specific implementation: when using the chain-type reciprocating driving device, a structure to be driven is connected to one end of the chain. Under the drive of the sprocket 130, the reciprocating motion of the structure to be driven can be realized. When designing the telescopic cover using the chain-type reciprocating driving device, the chain on the conveying rail 200 provides a necessary stroke. The driving mechanism 500 drives the sprocket 130 to rotate, and the sprocket 130 drives the chain link 110 to move. Since the chain link 110 is connected to one end of the cover body 400, and a roller 130 is provided at the upper end of the chain link 110, when the chain link 110 has a tendency to turn downward, due to the adhesion of two adjacent chain links 110, they prevent each other from turning downward, realizing the linear drive of the chain on one side of the cover body 400. When the cover body 400 needs to return, only need to rotate the sprocket 130 in the reverse direction, and the cover body 400 will automatically return.

[0058] The beneficial effects of this embodiment compared with the prior art are as follows: first, it can avoid the reduction of the hydraulic drive efficiency caused by high temperature; second, since there is no need to arrange hydraulic pipelines and special hydraulic stations, the installation difficulty is small and the flexibility is high; third, it can achieve a reasonable matching of the driving motor power and the moving distance, avoiding energy waste; fourth, the online adjustment of the heat preservation cover can be realized through remote centralized control or local operation boxes, ensuring the flexibility of production scheduling and the control accuracy.

[0059] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and inventive concept of the present utility model, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present utility model.

Claims

1. A telescopic cover, characterized in that: include: Reciprocating drive device (100); The conveying track (200) is a trough body supporting the chain; A cover body (400), a plate-like body that reciprocates with the aid of the reciprocating drive device (100), one end of which is connected to the chain; A support track (300), a track supporting the cover body (400); A driving mechanism (500) drives the sprocket (130) to rotate; The conveying track (200) and the supporting track (300) are arranged in parallel, and the sprocket (130) is located at the same end of the conveying track (200) and the supporting track (300); The reciprocating drive device (100) comprises: The chain links (110) are plate-shaped or block-shaped, and the edges of adjacent chain links (110) can be tightly fitted together, and multiple segments of the chain links (110) form a chain; a sprocket (130), wherein the sprocket (130) drives the chain link (110) to reciprocate by rotating; A roller (120) is located at one end of the chain link (110) facing the sprocket (130), so that the adjacent chain links (110) can only rotate in a direction toward the sprocket (130); The chain changes direction with the aid of the sprocket (130), and any end of the chain can reciprocate under the rotation of the sprocket (130).

2. The telescopic cover according to claim 1, characterized in that: The cover body (400) is further provided with a roller (410), and the roller (410) cooperates with the support track (300) to enable the cover body (400) to slide on the support track (300).

3. The telescopic cover according to claim 1, characterized in that: The conveying track (200) and the supporting track (300) are arranged horizontally.

4. The telescopic cover according to claim 1, characterized in that: The conveying track (200) is a hollow rectangular parallelepiped or barrel-shaped body, and the cover body (400) is located inside the conveying track (200).

5. The telescopic cover according to claim 1, characterized in that: The reciprocating drive devices (100) are multiple groups, and the driving mechanism (500) synchronously drives the sprockets (130) in the multiple groups of the reciprocating drive devices (100).

6. The telescopic cover according to any one of claims 1 to 5, characterized in that: The telescopic cover is used for heat preservation of high-temperature space in steel rolling process.

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