Shaft piece for guide wheel and matching structure

Abstract

The utility model discloses a shaft piece for a guide wheel and a matching structure, and belongs to the technical field of steel rolling machinery. The adjusting shaft is eccentrically connected with the wheel shaft; the adjusting shaft is sleeved with the inner edge of the adjusting ring, meshing teeth are arranged on the outer edge of the adjusting ring, and the adjusting ring is matched with the outside through the meshing teeth; the rotating angle of the adjusting ring is changed to drive the adjusting shaft and the wheel shaft to rotate so as to adjust the gap between the guide wheel and the guide rail. The matching structure comprises a guide wheel, a swing door frame, a cushion block and the shaft piece, the guide wheel is installed on the wheel shaft, the swing door frame is arranged on the adjusting shaft in a sleeved mode and provided with a cantilever, one face of the cushion block is fixed to the cantilever, and the other face of the cushion block is fixed to the tooth type pressing plate. The position of the guide wheel can be accurately controlled, so that the gap between the guide wheel and the guide rail is adjusted, smooth transition of the guide wheel and the guide rail in the running process is guaranteed, collision is avoided, and the stability of loop equipment is improved.

Description

Technical Field

[0001] This application belongs to the technical field of steel rolling machinery, and particularly relates to a shaft part and a matching structure for a guide wheel. Background Art

[0002] Cold rolling and pickling is a very important process in steel plate production. It improves the flatness, dimensional accuracy and other characteristics of the steel plate surface through rolling and pickling, and removes impurities such as scale and rust on the steel plate surface, so as to ensure product quality. In pickling and rolling equipment, the loop is one of the important equipment in the production line, and its reliability is related to the stable operation of the whole unit. As an important control key point of the loop, the clearance between the swing door guide wheel of the loop and the S guide rail of the loop car is one of the key points of daily maintenance.

[0003] However, in the existing pickling and rolling equipment, due to structural limitations, the spatial position of the guide wheel is restricted by the swing door link mechanism, and it is impossible to accurately adjust to ensure the clearance with the S guide rail. Each adjustment requires cutting the locking shim. After the guide wheel is aligned with the S track, the shim is welded on. The workload is large and the accuracy is not high, and it may also affect the original structure. After the equipment has been running for a period of time, whether the S guide rail position changes due to wear of the loop track or the spatial position of the guide wheel changes due to slight deformation of the mechanical structure of the swing door itself, it is possible to cause a collision between the guide wheel and the S guide rail. In the light case, the guide wheel drops and causes local shutdown. In the heavy case, the guide wheel cannot enter the S guide rail and causes a serious accident of the swing door tipping over. Summary of the Utility Model

[0004] This application aims to at least solve the technical problem that the clearance between the guide wheel and the guide rail cannot be accurately adjusted to a certain extent. Therefore, this application provides a shaft part and a matching structure for a guide wheel, which can accurately control the position of the guide wheel, thereby adjusting the clearance between the guide wheel and the guide rail, ensuring a smooth transition between the two during operation without collision, and improving the stability of the loop equipment.

[0005] In a first aspect, an embodiment of this application provides a shaft part for a guide wheel, which includes:

[0006] A wheel shaft for installing the guide wheel;

[0007] An adjusting shaft eccentrically connected to the wheel shaft;

[0008] An adjusting ring, the inner edge of which is sleeved on the adjusting shaft, and the outer edge of the adjusting ring is provided with engaging teeth, and the adjusting ring is externally engaged through the engaging teeth;

[0009] By changing the rotation angle of the adjusting ring, the adjusting shaft and the wheel shaft are driven to rotate to adjust the clearance between the guide wheel and the guide rail.

[0010] In an alternative embodiment, the engaging teeth are annularly arranged on the outer edge of the adjusting ring.

[0011] In an alternative embodiment, the outer diameter of the axle is smaller than the outer diameter of the adjusting shaft.

[0012] In an alternative embodiment, the eccentricity between the axle and the adjusting shaft is [4 mm, 6 mm].

[0013] In an alternative embodiment, a toothed pressure plate is further included, with tooth grooves provided on the side, and the tooth grooves are engaged with the engaging teeth, enabling the adjusting ring to adjust its relative position along the tooth grooves.

[0014] In an alternative embodiment, the adjusting shaft includes a first connecting shaft and a second connecting shaft connected axially. The first connecting shaft is connected to the adjusting ring, and the end of the first connecting shaft is connected to the axle.

[0015] In an alternative embodiment, the first connecting shaft and the second connecting shaft are coaxially arranged, and the outer diameter of the first connecting shaft is greater than or equal to the outer diameter of the second connecting shaft.

[0016] In an alternative embodiment, the end of the second connecting shaft is provided with an external thread.

[0017] In a second aspect, an embodiment of the present application provides a mating structure for a guide wheel, which includes a guide wheel, a swing door frame, a spacer block, and the above-mentioned shaft member. The guide wheel is installed on the axle, the swing door frame is sleeved on the adjusting shaft, the swing door frame is provided with a cantilever, one side of the spacer block is fixed to the cantilever, and the other side of the spacer block is fixed to the toothed pressure plate.

[0018] In an alternative embodiment, a lock nut is further included, the lock nut is connected to the adjusting shaft, and the swing door frame is fixed by the lock nut.

[0019] From the above technical solutions, the beneficial effects of the present application are as follows:

[0020] 1. By structurally improving the original shaft member, the present application adjusts the original shaft member structure to an eccentric structure. Through the eccentric setting of the axle and the adjusting wheel, it is convenient to adjust the position of the guide wheel, which can be achieved by rotating the adjusting shaft. At the same time, through the engaging teeth of the adjusting ring, a force is provided on the outer edge of the adjusting ring, and the adjusting ring can be positioned by the external cooperation of the engaging teeth, thereby adjusting the rotation angle of the adjusting shaft. Then, the guide wheel is driven by the axle to realize the gap adjustment between the guide wheel and the guide rail; therefore, the present application can accurately control the position of the guide wheel, thereby adjusting the gap between the guide wheel and the S guide rail, ensuring a smooth transition between the two during operation without collision, and improving the stability of the loop equipment.

[0021] 2. The present application provides a basis for installing a toothed pressure plate through a swinging door frame with a bushing fit, then fixes the toothed pressure plate through a spacer block, positions the rotational position of the adjusting shaft by the action of an adjusting ring on the toothed pressure plate, and changes the position of the guide wheel relative to the guide rail by rotating the adjusting shaft, thereby adjusting the clearance between the guide wheel and the guide rail. The fitting structure of the present application provides a margin for adjusting the position of the guide wheel, improves the operating stability of the structure, has a simple structure, low manufacturing cost, and is safe and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other embodiments and drawings can also be obtained based on these drawings.

[0023] Figure 1 The schematic diagram of the embodiment of the shaft member and the fitting structure for the guide wheel of the present utility model is shown;

[0024] Figure 2 The schematic diagram of the embodiment of the toothed pressure plate of the present utility model is shown;

[0025] Figure 3 The schematic diagram of the embodiment of the fitting structure for the guide wheel of the present utility model is shown;

[0026] Reference numerals: 100, shaft member; 110, wheel shaft; 120, adjusting shaft; 121, first connecting shaft; 122, second connecting shaft; 130, adjusting ring; 131, engaging teeth; 140, toothed pressure plate; 141, tooth groove; 200, guide wheel; 300, gland; 400, spacer block; 401, locking member; 500, swinging door frame; 501, cantilever; 600, lock nut. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art without creative efforts based on the embodiments of the present utility model belong to the scope of protection of the present utility model.

[0028] It should be noted that all the directional indications in the embodiments of the present utility model are only used to explain the relative position relationship and movement conditions between components in a specific posture. If this specific posture changes, the directional indications will also change accordingly.

[0029] In the present utility model, unless otherwise clearly stipulated and defined, terms such as "connection" and "fixation" shall be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0030] In addition, in the present utility model, descriptions such as "first" and "second" are only for descriptive purposes and should not be understood as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" can explicitly or implicitly include at least one of such features. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0031] The following describes this application with reference to the accompanying drawings and specific embodiments:

[0032] Please refer to Figure 1 In the first aspect embodiment of this application, a shaft member for a guide wheel is provided, which includes a wheel shaft 110, an adjustment shaft 120, and an adjustment ring 130. The shaft member 100 is used at the guide wheel 200 of a pickling and rolling equipment. The wheel shaft 110 is used to install the guide wheel 200. A bushing fit is provided between the guide wheel 200 and the wheel shaft 110, and the guide wheel 200 is rotatable relative to the wheel shaft 110. The guide wheel 200 is placed on a guide rail, and the guide wheel 200 must always match the guide rail. The adjustment shaft 120 is eccentrically connected to the wheel shaft 110. The axial direction of the adjustment shaft 120 is parallel to the axial direction of the wheel shaft 110 and is spaced apart by a certain distance. In this way, the eccentric connection between the wheel shaft 110 and the adjustment shaft 120 can adopt an integral molding or screw fixation method, or other connection methods can also be used. The adjustment ring 130 is annular. The inner edge of the adjustment ring 130 is sleeved on the adjustment shaft 120. The adjustment ring 130 and the adjustment shaft 120 can also be manufactured by an integral molding method or an interference fit. The outer edge of the adjustment ring 130 is provided with a plurality of engaging teeth 131. The external structure must also have matching teeth so that the adjustment ring 130 can be positioned relative to the adjustment shaft 120 through the engaging teeth 131. By changing the rotation angle of the adjustment ring 130, the adjustment shaft 120 and the wheel shaft 110 are driven to rotate. When the wheel shaft 110 rotates, the position of the guide wheel 200 also changes immediately to adjust the gap between the guide wheel 200 and the guide rail.

[0033] In the design structure of the existing pickling and cold rolling equipment, the bearing of the guide wheel 200 is installed on a rod-shaped shaft structure. The guide wheel 200 cooperates with the S guide rail. The shaft structure and the swing door have a small clearance fit. The spatial position of the guide wheel 200 is constrained by the swing door link mechanism, and the clearance between the guide wheel 200 and the S guide rail cannot be accurately adjusted, and the fit clearance with the S guide rail cannot be guaranteed. In the lightest case, the guide wheel 200 will fall off, and in the worst case, the swing door will tip over. Moreover, the adjustment is rather cumbersome. Each adjustment requires cutting the locking shim. After the guide wheel 200 is aligned with the S track, the shim is welded on. The workload is large and the accuracy is not high, and the re-welding may also affect the original structure.

[0034] In this application, the original shaft structure is structurally improved, and the original shaft structure is adjusted to an eccentric structure. Through the eccentric setting of the wheel shaft 110 and the adjusting wheel, it is convenient to adjust the position of the guide wheel 200, which can be achieved by rotating the adjusting shaft 120. At the same time, through the engaging teeth 131 of the adjusting ring 130, a force is provided on the outer edge of the adjusting ring 130. By externally cooperating with the engaging teeth 131, the adjusting ring 130 can be positioned, and then the rotation angle of the adjusting shaft 120 is adjusted. Then, the guide wheel 200 is driven by the wheel shaft 110 to realize the adjustment of the clearance between the guide wheel 200 and the guide rail. Therefore, this application can accurately control the position of the guide wheel 200, thereby adjusting the clearance between the guide wheel 200 and the S guide rail, ensuring a smooth transition between the two during operation without collision, and improving the stability of the loop equipment. At the same time, when the clearance between the guide wheel 200 and the guide rail is too large, maintenance and emergency repair can be carried out quickly and efficiently to restore the clearance between the guide wheel 200 and the guide rail. During the operation of the equipment, in the case of the guide wheel 200 falling off once a year, after adopting the embodiment of this application, the downtime of the accident can be reduced by 3 hours. Calculated according to the hourly output of 300 tons, the affected output is 900 tons, and the average revenue per ton of steel is 200 yuan / ton. The expected annual revenue is: 900 tons * 200 yuan / ton = 180,000 yuan. Adding the spare part cost of 50,000 yuan for the loop swing door and the restoration labor cost of 10,000 yuan, the economic benefit can be increased by 240,000 yuan / year through this application.

[0035] Please refer to Figure 2, in an alternative embodiment, the engaging teeth 131 are arranged in a ring on the outer edge of the adjusting ring 130. In this way, a plurality of engaging teeth 131 form a plurality of teeth on the outer edge of the adjusting ring 130. For example, the adjusting ring 130 forms a gear structure through the arrangement of the engaging teeth 131, which facilitates external mating connection. In an alternative embodiment, the shaft member 100 further includes a toothed pressing plate 140. The toothed pressing plate 140 is plate-shaped, and its side is provided with a tooth groove 141. The arrangement of the tooth groove 141 is in an inwardly concave arc shape. The toothed pressing plate 140 is provided with a through hole. By using a bolt to pass through the through hole, the toothed pressing plate 140 can be fixed to an external structure. The tooth groove 141 meshes with the engaging teeth 131, enabling the adjusting ring 130 to adjust its relative position along the tooth groove 141. The tooth groove 141 is provided on the side of the toothed pressing plate 140, which is convenient for cooperation with the adjusting ring 130. Through the meshing of the engaging teeth 131 and the tooth groove 141, it is possible to conveniently position the rotation angle of the adjusting shaft 120 and prevent the adjusting shaft 120 from rotating easily.

[0036] In an alternative embodiment, the outer diameter of the wheel shaft 110 is smaller than the outer diameter of the adjusting shaft 120. That is, one end of the wheel shaft 110 is connected to the end face of the adjusting shaft 120. The adjusting shaft 120 is connected to the adjusting ring 130. In this way, the adjusting shaft 120 can rotate by a small angle, that is, it can greatly adjust the gap between the guide wheel 200 and the guide rail. In an alternative embodiment, the eccentricity between the wheel shaft 110 and the adjusting shaft 120 is [4mm, 6mm], such as 4mm, 5mm or 6mm. The eccentricity is the deviation position between the axis of the wheel shaft 110 and the axis of the adjusting shaft 120. The wheel shaft 110 is connected to the end of the adjusting shaft 120, so that the gap between the guide wheel 200 and the guide rail can be accurately adjusted within the above range.

[0037] In an alternative embodiment, the adjusting shaft 120 includes a first connecting shaft 121 and a second connecting shaft 122 connected axially. The first connecting shaft 121 and the second connecting shaft 122 are coaxially arranged. The outer diameter of the first connecting shaft 121 is greater than or equal to the outer diameter of the second connecting shaft 122. As shown in the figure, the outer diameter of the first connecting shaft 121 is greater than that of the second connecting shaft 122. One end of the first connecting shaft 121 is connected to the wheel shaft 110, and the other end of the first connecting shaft 121 is connected to one end of the second connecting shaft 122. The other end of the second connecting shaft 122 is provided with an external thread, which is convenient for fixing a swing door fitted with a shaft sleeve on the second connecting shaft 122. The first connecting shaft 121 is connected to the adjusting ring 130, and the inner edge of the adjusting ring 130 is fixed to the end of the first connecting shaft 121, close to the second connecting shaft 122. Through the above arrangement, the shaft member 100 can be combined with an existing swing door and is applicable to existing acid rolling equipment.

[0038] Please refer to Figure 3, in the embodiment of the second aspect of the present application, a mating structure for a guide wheel 200 is provided, which includes a guide wheel 200, a gland 300, a swing door frame 500, a spacer 400, a lock nut 600, and the above-mentioned shaft member 100. The guide wheel 200 is installed on a wheel shaft 110. The guide wheel 200 is fixed at the circumferential position of the wheel shaft 110 by a bushing fitting method. The guide wheel 200 is rotatable relative to the wheel shaft 110. The size of the gland 300 is larger than the outer diameter of the wheel shaft 110. The gland 300 is connected to the end of the wheel shaft 110 to keep the guide wheel 200 always restricted on the wheel shaft 110. The fixed swing door frame 500 is sleeved on the adjusting shaft 120. Specifically, there is a hole penetrating both ends inside the swing door frame 500. The swing door frame 500 is sleeved on the second connecting shaft 122 through this hole. The end of the second connecting shaft 122 is provided with an external thread, and the lock nut 600 is thread-matched with the end of the second connecting shaft 122. In this way, the swing door frame 500 is restricted on the second connecting shaft 122 by the lock nut 600. There is a cantilever 501 on the outer side of the swing door frame 500. One side of the spacer 400 is fixed to the cantilever 501 by welding. The other side of the spacer 400 is fixed to the toothed pressing plate 140 by bolting. For example, there are through holes provided in the toothed pressing plate 140, and the spacer 400 also has through holes at corresponding positions. A locking member 401 passes through the through holes at corresponding positions to fix the toothed pressing plate 140 and the spacer 400. The locking member 401 is a bolt or other parts that are convenient for connecting and fixing the toothed pressing plate 140 and the spacer 400. In this way, the toothed pressing plate 140 is indirectly fixed to the swing door frame 500.

[0039] In the design structure of the existing pickling and rolling equipment, the bearing of the guide wheel 200 is installed on the rod-shaped shaft member 100, and the guide wheel 200 and the shaft member 100 are coaxially arranged, and the gap between the guide wheel 200 and the S guide rail cannot be directly adjusted. However, the present application provides a basis for installing the toothed pressing plate 140 through the swing door frame 500 with bushing fitting, then fixes the toothed pressing plate 140 through the spacer 400, positions the rotational position of the adjusting shaft 120 through the interaction between the adjusting ring 130 and the toothed pressing plate 140, and changes the position of the guide wheel 200 relative to the guide rail by rotating the adjusting shaft 120, so as to adjust the gap between the guide wheel 200 and the guide rail. The gap between the guide wheel 200 and the guide rail is measured with a feeler gauge, and the position of the guide wheel 200 is adjusted according to the actual measured value. The mating structure of the present application provides a position adjustment margin for the guide wheel 200, improves the operation stability of the structure, and has a simple structure, low manufacturing cost, and is safe and reliable.

[0040] In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "example", "specific example", "optional example" or "optional implementation manner", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification.

[0041] In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present application.

[0042] Although the embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and purposes of the present application. The scope of the present application is defined by the claims and their equivalents.

Claims

1. A shaft member for a guide wheel, characterized in that, Comprising: A wheel axle (110) for mounting a guide wheel (200); An adjusting axle (120) eccentrically connected to the wheel axle (110); An adjusting ring (130) with its inner edge sleeved on the adjusting axle (120), and engaging teeth (131) provided on the outer edge of the adjusting ring (130), the adjusting ring (130) being externally engaged through the engaging teeth (131); By changing the rotation angle of the adjusting ring (130), driving the adjusting axle (120) and the wheel axle (110) to rotate so as to adjust the clearance between the guide wheel (200) and the guide rail.

2. The shaft member for a guide wheel according to claim 1, characterized in that, The engaging teeth (131) are annularly arranged on the outer edge of the adjusting ring (130).

3. The shaft member for a guide wheel according to claim 1, characterized in that, The outer diameter of the wheel axle (110) is smaller than the outer diameter of the adjusting axle (120).

4. The shaft member for a guide wheel according to claim 3, characterized in that, The eccentricity between the wheel axle (110) and the adjusting axle (120) is [4mm, 6mm].

5. The shaft member for a guide wheel according to any one of claims 1-4, characterized in that, Also included is a toothed pressing plate (140) with a tooth groove (141) provided on the side, the tooth groove (141) being meshed with the engaging teeth (131) so that the adjusting ring (130) can adjust its relative position along the tooth groove (141).

6. The shaft member for a guide wheel according to claim 1, characterized in that, The adjusting axle (120) includes a first connecting axle (121) and a second connecting axle (122) axially connected, the first connecting axle (121) being connected to the adjusting ring (130), and the end of the first connecting axle (121) being connected to the wheel axle (110).

7. The shaft member for a guide wheel according to claim 6, characterized in that, The first connecting axle (121) and the second connecting axle (122) are coaxially arranged, and the outer diameter of the first connecting axle (121) is greater than or equal to the outer diameter of the second connecting axle (122).

8. The shaft member for a guide wheel according to claim 7, characterized in that, The end of the second connecting axle (122) is provided with an external thread.

9. A mating structure for a guide wheel, characterized in that, Comprising a guide wheel (200), a swing door frame (500), a cushion block (400) and the axle member according to any one of claims 1 - 8, the guide wheel (200) being mounted on the wheel axle (110), the swing door frame (500) being sleeved on the adjusting axle (120), the swing door frame (500) being provided with a cantilever (501), one side of the cushion block (400) being fixed to the cantilever (501), and the other side of the cushion block (400) being fixed to the toothed pressing plate (140).

10. The mating structure for a guide wheel according to claim 9, characterized in that, Also included is a lock nut (600) connected to the adjusting axle (120), and the swing door frame (500) is fixed through the lock nut (600).

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