Riding wheel adjusting system for coating lining of nodular cast iron pipe

Abstract

The utility model particularly relates to a riding wheel adjusting system for coating a lining of a nodular cast iron pipe. Nodular cast iron pipes; the riding wheel assembly comprises two groups of riding wheels and is used for supporting the nodular cast iron pipe; the fixed shaft is a shaft body which is sleeved in the middle of the riding wheel and has rectangular cross sections at two ends; the adjusting assembly comprises an adjusting groove, the adjusting groove is a groove body which is arranged in the direction of the center connecting line of the two sets of riding wheels and transversely penetrates through the adjusting assembly, and the two ends of the fixing shaft penetrate through the adjusting groove and are arranged in the adjusting groove in a sleeved mode so that the riding wheels can move in the direction of the center connecting line of the two sets of riding wheels; the adjusting bolt is located on the outer side of the adjusting groove and used for adjusting the relative position of the fixing shaft in the adjusting groove by screwing and pushing the fixing shaft arranged on the adjusting groove, and compared with the prior art, the riding wheel assembly has the advantages that the position of the riding wheel assembly is adjusted through simple screwing and pushing cooperation of the adjusting bolt and the adjusting groove.

Description

Technical Field

[0001] The utility model belongs to the field of centrifugal lining equipment for ductile iron pipes, and in particular relates to a supporting wheel adjustment system for ductile iron pipe lining. Background Art

[0002] During the production process of ductile iron pipes with ordinary anti-corrosion requirements, it is necessary to refer to the requirements of 4.4 external coating and lining in GB / T13295-2019 and apply a layer of cement mortar on the inner wall. There are usually many methods for applying cement mortar, such as spraying and centrifugal coating. The relatively common and effective method is centrifugal coating, which is to inject a certain amount of cement mortar into the inner wall of the ductile iron pipe, drive the workpiece injected with mortar to rotate, and under the action of centrifugal force, the cement mortar is lined on the inner wall of the ductile iron pipe.

[0003] There are currently two types of equipment for lining mortar: belt-type coating machines and roller-type coating machines. One uses a flexible belt to drive the workpiece to rotate, and the other uses a roller to drive the workpiece to rotate. The above two coating methods each have their own characteristics and application scenarios. The inventor found that during the use of the roller-type coating machine, the shaft is generally connected to the roller body, and the shaft is driven by gears or belts to achieve the purpose of driving the roller to rotate. However, during the centrifugal coating process, due to external wear of the roller or changes in the size of the workpiece, it is often necessary to adjust the distance between the two rollers to meet the needs of pipeline lining. If the distance is too small, the transmission effect is poor and there will be large workpiece jump. The operation of adjusting the shaft is complicated, and the bearings and transmission mechanism need to be fixed twice, which is time-consuming and labor-intensive.

[0004] Therefore, there is an urgent need for a simple-structured supporting wheel adjustment system for ductile iron pipe lining. Summary of the invention

[0005] In order to overcome the problem that the adjustment of the supporting wheel in the prior art is time-consuming and labor-intensive, the inventor fixed the shaft body on the basis of the original supporting wheel structure, and the supporting wheel rotated around the shaft body. An adjusting element was set at the end of the shaft body, and the position of the supporting wheel was adjusted by a simple screwing action.

[0006] The technical solution adopted by the utility model is: a supporting wheel adjustment system for ductile iron pipe lining, comprising:

[0007] Pedestal;

[0008] Ductile iron pipe;

[0009] The supporting wheel assembly includes two sets of supporting wheels, which support the ductile iron pipe and drive the ductile iron pipe to rotate around the axis;

[0010] The fixed shaft is a shaft body sleeved on the middle part of the supporting wheel and having rectangular cross sections at both ends;

[0011] The adjusting assembly is a frame fixedly mounted on the upper part of the base and located on both sides of the supporting wheel assembly. The adjusting assembly includes:

[0012] The adjusting groove is arranged along the center line of the two groups of the supporting wheels, and the groove body of the adjusting assembly is transversely penetrated, and the two ends of the fixed shaft pass through the adjusting groove and are sleeved in the adjusting groove, so that the supporting wheel can move along the center line of the two groups of the supporting wheels;

[0013] The adjusting bolt is located outside the adjusting groove, and is screwed to push the fixed shaft arranged on the adjusting groove, so as to adjust the relative position of the fixed shaft in the adjusting groove.

[0014] Furthermore, the adjustment groove is a C-shaped groove body that opens toward the midpoint of the direction of the center line connecting the two groups of support wheels.

[0015] Furthermore, a locking bolt is provided at the opening end of the adjusting slot, and the locking bolt passes through the opening direction of the adjusting slot and is detachably provided at the opening of the adjusting slot.

[0016] Furthermore, the supporting wheel further comprises:

[0017] The inner sleeve is a rigid sleeve sleeved on the outside of the fixed shaft and rotates around the fixed shaft;

[0018] The rubber-covered wheel is sleeved on the outside of the inner sleeve and is a wheel body with rubber attached to the outer surface, and is detachably connected to the inner sleeve.

[0019] Furthermore, a protrusion is provided on the outer side of the inner sleeve toward the rubber hanging wheel, and a protrusion is provided on the rubber hanging wheel toward the inner sleeve. Bolts are inserted between the protrusions on the inner sleeve and the protrusions on the rubber hanging wheel, and the bolt structure is used for detachable connection.

[0020] Compared with the prior art, the utility model has the following beneficial effects: 1. The position of the support wheel assembly can be adjusted by simply screwing and pushing the adjusting bolt and the adjusting groove; 2. The opening design of the C-shaped groove body facilitates the disassembly of the entire fixed shaft; 3. The locking bolt can fix the relative position of the adjusting groove to avoid deformation of the adjusting groove caused by vibration of the support wheel; 4. The inner sleeve and the rubber-hanging wheel can be detachably connected to realize the convenient replacement of the outer wheel body. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a front view of a specific implementation method of the utility model;

[0022] Figure 2 It is a cross-sectional view of a specific implementation method of the utility model;

[0023] Figure 3 This is a partial enlarged view of the adjustment component of the specific implementation mode of the utility model;

[0024] The markings are as follows: 100-base; 200-supporting wheel assembly; 210-rubber wheel; 220-inner sleeve; 230-fixed shaft; 300-ductile iron pipe;

[0025] 400-adjustment assembly; 410-adjustment slot; 420-adjustment bolt; 430-locking bolt DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. In the description of the utility model, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the 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 utility model.

[0027] In order to overcome the problem of time-consuming and labor-intensive adjustment of the supporting wheel in the prior art, the inventor fixed the shaft body on the basis of the original supporting wheel structure, and the supporting wheel rotated around the shaft body. An adjustment element was set at the end of the shaft body, and the position of the supporting wheel was adjusted by a simple screwing action. Figures 1 to 3 The technical solution adopted by the utility model is: a supporting wheel adjustment system for ductile iron pipe lining, characterized in that it includes:

[0028] Base 100; in this specific embodiment, the machine base can be a concrete machine base or a steel frame base, and its purpose is to fix and lift the assembly to the position of the supporting wheel shaft.

[0029] Ductile iron pipe 300;

[0030] The supporting wheel assembly 200 includes two sets of supporting wheels, which support the ductile iron pipe 300 and drive the ductile iron pipe 300 to rotate around the axis;

[0031] The fixed shaft 230 is a shaft body sleeved on the middle part of the supporting wheel, with rectangular cross-sections at both ends; Figure 3 In this specific embodiment, the cross-sections of both ends of the fixed shaft 230 are square, but can also be rectangular, for the purpose of facilitating fixation and movement.

[0032] The adjustment assembly 400 is a frame fixedly mounted on the upper portion of the base 100 and located on both sides of the supporting wheel assembly 200. The adjustment assembly 400 includes:

[0033] The adjusting groove 410 is arranged along the center line of the two groups of the supporting wheels, and runs through the groove body of the adjusting assembly 400 transversely. Both ends of the fixed shaft 230 pass through the adjusting groove 410 and are sleeved in the adjusting groove 410, so that the supporting wheels can move along the center line of the two groups of the supporting wheels;

[0034] See also Figure 1 The direction of the connecting line of the centers of the two groups of rollers in this application refers to the direction of the connecting line of the midpoints of the two groups of rollers in the general roller assembly 200, which is two groups of rollers placed horizontally. This ensures that during the adjustment process, the two groups of rollers are still in the same horizontal position.

[0035] The adjusting bolt 420 is located outside the adjusting groove 410, and is screwed to push the fixing shaft 230 provided on the adjusting groove 410 to adjust the relative position of the fixing shaft 230 in the adjusting groove 410. In this specific embodiment, in order to facilitate adjustment and screwing, the adjusting bolt 420 is used to achieve the function. In other embodiments, the screw rod and the hand crank should also be equivalent to the adjusting bolt 420 described in this application, and the essential purpose is to use the thread to achieve adjustment and fixation.

[0036] In order to facilitate replacement and installation, preferably, the adjustment groove 410 is a C-shaped groove body that opens toward the midpoint of the direction of the center line connecting the two groups of support wheels.

[0037] More preferably, a locking bolt 430 is provided at the open end of the adjustment slot 410, and the locking bolt 430 runs through the opening direction of the adjustment slot 410 and is detachably provided at the opening of the adjustment slot 410. The purpose of the locking bolt 430 is that when the adjustment slot 410 is a C-shaped slot body, the rotation of the support wheel will inevitably cause the vibration or deflection of the fixed shaft. At this time, if the rigidity of the adjustment slot 410 is insufficient, it will cause deformation and cause greater jumping. In order to overcome the above problems, the inventors installed a fixing piece at the opening position of the C-shaped slot body to weaken the above influence. At the same time, the locking bolt 430 can also be removed when repairing the assembly to achieve the purpose of opening the fixed shaft 230 in and out.

[0038] In another embodiment, the supporting wheel further comprises:

[0039] The inner sleeve 220 is a rigid sleeve that is sleeved on the outside of the fixed shaft 230 and rotates around the fixed shaft 230;

[0040] The rubber-covered wheel 210 is sleeved outside the inner sleeve 220 and is a wheel body with rubber attached to the outer surface, and is detachably connected to the inner sleeve 220. Figure 2The outer side of the inner sleeve 220 is provided with a protrusion toward the rubber-hanging wheel 210, and the rubber-hanging wheel 210 is provided with a protrusion toward the inner sleeve 220. Bolts are inserted between the protrusions on the inner sleeve 220 and the protrusions on the rubber-hanging wheel 210, and the bolt structure is used for detachable connection.

[0041] During specific operation: due to long-term coating operation, the outer side of the support roller may be worn, or when the size of the required coating workpiece needs to be adjusted within a certain range, the spacing of the support rollers needs to be adjusted, that is, the adjustment bolt 420 is screwed or locked. Under the action of the workpiece gravity decomposition force, the fixed shaft 230 will always be located close to the adjustment bolt to achieve the purpose of rapid adjustment. At the same time, if the fixed shaft needs to be replaced, the shaft body can be withdrawn from one side. When the rubber on the rubber-hanging wheel 210 needs to be replaced, the inner sleeve 220 and the rubber-hanging wheel 210 can also be quickly separated by bolts, and the rubber-hanging wheel 210 can be separated from the side to achieve the purpose of convenient adjustment.

[0042] Compared with the prior art, the utility model has the following beneficial effects: the position of the support wheel assembly can be adjusted by simply screwing and pushing the adjusting bolt and the adjusting groove; the opening design of the C-shaped groove body facilitates the disassembly of the entire fixed shaft; the locking bolt can fix the relative position of the adjusting groove to avoid deformation of the adjusting groove caused by vibration of the support wheel; the inner sleeve and the rubber-hanging wheel can be detachably connected to realize the convenient replacement of the outer wheel body.

[0043] The above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed by the present invention according to the technical solution and inventive concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A roller adjustment system for coating lining of ductile iron pipes. It is characterized in that include: Base (100); Ductile iron pipe (300); The supporting wheel assembly (200) is composed of two groups of supporting wheels, supporting the ductile iron pipe (300) and driving the ductile iron pipe (300) to rotate around the axis; The fixed shaft (230) is a shaft body sleeved on the middle part of the supporting wheel and having rectangular cross sections at both ends; The adjustment assembly (400) is a frame body fixedly mounted on the upper part of the base (100) and located on both sides of the supporting wheel assembly (200). The adjustment assembly (400) comprises: The adjusting groove (410) is arranged along the center line connecting the two groups of the supporting wheels and runs through the groove body of the adjusting assembly (400) transversely. Both ends of the fixed shaft (230) pass through the adjusting groove (410) and are sleeved in the adjusting groove (410), so that the supporting wheel can move along the center line connecting the two groups of the supporting wheels. The adjusting bolt (420) is located outside the adjusting groove (410) and is used to adjust the relative position of the fixing shaft (230) in the adjusting groove (410) by screwing and pushing the fixing shaft (230) disposed on the adjusting groove (410).

2. The supporting roller adjustment system for coating and lining of ductile iron pipe according to claim 1, It is characterized in that The adjustment groove (410) is a C-shaped groove body that opens toward the midpoint of the direction of the center line connecting the two groups of supporting wheels.

3. The supporting roller adjustment system for coating and lining of ductile iron pipe according to claim 2, It is characterized in that A locking bolt (430) is provided at the opening end of the adjustment slot (410); the locking bolt (430) passes through the opening direction of the adjustment slot (410) and is detachably provided at the opening of the adjustment slot (410).

4. The supporting roller adjustment system for coating and lining of ductile iron pipe according to claim 1, It is characterized in that The supporting wheel also includes: The inner sleeve (220) is a rigid sleeve that is sleeved on the outside of the fixed shaft (230) and rotates around the fixed shaft (230); The rubber-covered wheel (210) is sleeved on the outside of the inner sleeve (220), is a wheel body with rubber attached to the outer surface, and is detachably connected to the inner sleeve (220).

5. The supporting roller adjustment system for coating and lining of ductile iron pipe according to claim 4, It is characterized in that The outer side of the inner sleeve (220) is provided with a protrusion towards the rubber-hanging wheel (210), and the rubber-hanging wheel (210) is provided with a protrusion towards the inner sleeve (220). Bolts are inserted between the protrusions on the inner sleeve (220) and the protrusions on the rubber-hanging wheel (210), and the two are detachably connected using a bolt structure.

Images