Supporting wheel for precise pipe making machine

Abstract

According to the technical scheme, the supporting wheel for the precise pipe making machine comprises a rotating shaft and a supporting wheel body, the supporting wheel body is arranged on the rotating shaft, a first bearing and a second bearing are rotationally arranged on the rotating shaft, the first bearing and the second bearing are deep groove ball bearings of the same structure, and the supporting wheel body is arranged on the rotating shaft. The first bearing and the second bearing are fixed to the two end faces of the supporting wheel respectively, a stepped groove located between the first bearing and the second bearing is formed in the supporting wheel, and the diameter of the stepped groove is smaller than the outer diameter of the first bearing and larger than the outer diameter of a ball groove of the first bearing. And the convex surface of the gland is pressed into the supporting wheel to be attached to one end surface of the bearing I or the bearing II. By means of the stepped grooves, on one hand, the contact area of the supporting wheel and the rotating shaft is reduced, so that friction force is reduced, abrasion is reduced, on the other hand, inner rings of the bearings cannot rub each other during rotation, and the bearings are convenient to disassemble when damaged.

Description

TECHNICAL FIELD

[0001] The utility model relates to a pipe making machine technical field, concretely is a kind of support wheel for precision pipe making machine. BACKGROUND

[0002] Pipe making machine can produce stainless steel pipe, titanium pipe and other seam pipe and corrosion-resistant metal pipe fittings, stainless steel pipe, titanium pipe and other seam pipe and corrosion-resistant metal pipe fittings are one of the necessary elements for pipe connection commonly used in medicine, food and other fields, it is a kind of under certain temperature and pressure, by other auxiliary elements such as valve, tee, elbow, instrument and meter element makes it with metal pipe using welding, chuck quick installation connection, screw connection and other means of forming a complete system, complete pharmaceutical, liquid preparation and other various process realization.Pipe fitting processing precision and welding requirement must reach sanitary grade.

[0003] Current YSJHG90 type-133~219-6.0t precision pipe making machine pipe making type: plasma+straight seam argon arc welding (P+T), pipe making specification: φ133~φ219mm, pipe making speed: 0.2-1.5m / min, metal pipe is completed all processes of pipe making on pipe making machine automatic assembly line.

[0004] But the feeding guide wheel outside support frame and support wheel on the whole production line are not fixed stably, support wheel needs to be adjusted frequently in processing, increase production time, thereby improve production cost, and practicality is poor. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of prior art, the utility model aims at providing a support wheel for precision pipe making machine.

[0006] In order to realize the above-mentioned purpose, the utility model is technical scheme as follows:

[0007] A support wheel for precision pipe making machine, including pivot and support wheel, the support wheel is arranged on the pivot, the pivot is rotatably provided with bearing one and bearing two, the bearing one and the bearing two are arranged as the same structure deep groove ball bearing, and the bearing one and the bearing two are respectively fixed on the two end faces of the support wheel, the support wheel is internally provided with stepped groove between the bearing one and the bearing two, the diameter of the stepped groove is less than the outer diameter of the bearing one and greater than the outer diameter of the bearing one ball groove.

[0008] Preferably, recesses are formed on the two end faces of the support wheel, and the two recesses are respectively in interference fit with the bearing one and the bearing two.

[0009] Preferably, the support wheel is fixed with a gland with a convex surface at both ends, and the convex surface of the gland is pressed into the support wheel and attached to one end face of the bearing one or the bearing two.

[0010] Preferably, the outer diameter of the convex surface of the gland is not greater than the outer diameter of the bearing one.

[0011] Preferably, a plurality of threaded holes are formed on the two end faces of the support wheel, a plurality of bolt holes are formed on the circumferential surface of the gland in correspondence, and bolts are slidably arranged in the bolt holes and are threadedly connected with the threaded holes.

[0012] Preferably, the inner diameter of the gland is greater than the diameter of the rotating shaft.

[0013] Preferably, the two end faces of the support wheel are symmetrically arranged.

[0014] Preferably, the diameter of the stepped groove is set to be half of the sum of the outer diameter of the bearing one and the outer diameter of the ball groove of the bearing one.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] 1. The utility model discloses two deep groove ball bearings, a support wheel, a gland and a bolt standard piece are installed on the rotating shaft to complete the support of the outside of the feeding guide wheel, so that the stability of the production process is ensured, the production efficiency is improved, and the production cost is reduced.

[0017] 2. The stepped groove reduces the contact area of the support wheel and the rotating shaft, thereby reducing the friction and wear, and the inner ring of the bearing does not rub against each other when rotating, so that the bearing is convenient to disassemble when damaged, and the practicability is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] The disclosure of the utility model will be described with reference to the drawings. It should be understood that the drawings are only for illustrative purposes, and are not intended to limit the scope of protection of the utility model. In the drawings, the same reference signs are used to refer to the same parts. Among them:

[0019] Figure 1 It is a whole structure schematic view of the utility model.

[0020] The figure mark explanation: 1, rotating shaft;2, bearing one;3, bearing two;4, support wheel;5, gland;6, bolt. DETAILED DESCRIPTION

[0021] It is easy to understand that according to the technical scheme of the utility model, a person skilled in the art can propose a plurality of structure modes and implementation modes which can be replaced with each other without changing the essential spirit of the utility model. Therefore, the following specific embodiments and drawings are only exemplary description of the technical scheme of the utility model, and should not be regarded as the whole or regarded as the limitation or restriction of the technical scheme of the utility model.

[0022] As Figure 1As shown, as a kind of support wheel for precision pipe making machine of the utility model, including pivot 1, pivot 1 is rotationally arranged with bearing one 2 and bearing two 3, bearing one 2 and bearing two 3 are arranged as the same structure deep groove ball bearing, pivot 1 is also provided with support wheel 4, recess is set up on the two end faces of support wheel 4, and two recesses are respectively with bearing one 2 and bearing two 3 interference fit, the stability of connection is guaranteed through interference fit to ensure the stability of support wheel 4, the ladder groove between bearing one 2 and bearing two 3 is set up in support wheel 4, the diameter of ladder groove is set as half of the sum of the outer diameter of bearing one 2 and the outer diameter of bearing one 2 ball groove, located in the middle part can improve the stability of the whole, through ladder groove, on the one hand, the contact area of support wheel 4 and pivot 1 is reduced, thereby reducing the friction force, reducing the abrasion, on the other hand, the inner ring of bearing does not rub each other when rotating, when the bearing is damaged, the bearing is disassembled, the practicability is improved.

[0023] As Figure 1 As shown, support wheel 4 both ends are fixed with the lug gland 5, the two end faces of support wheel 4 are symmetrically arranged, the coordination is guaranteed through symmetric arrangement, thereby indirectly improving the stability of the device, the lug surface of gland 5 is pressed into support wheel 4 and is attached to one end face of bearing one 2 or bearing two 3, the lug surface of gland 5 plays the role of positioning and pressing, the lug surface of gland 5 is the same size as the outer ring of bearing, the lug surface of gland 5 is guaranteed to the bearing and plays the role of stable pressing, a plurality of threaded holes are set up on the two end faces of support wheel 4, a plurality of bolt holes are set up on the circumference of gland 5, and the bolt 6 is slidably arranged in the bolt hole and is threadedly connected with the threaded hole, the lug surface of gland 5 is pressed against the outer ring of deep groove ball bearing through bolt 6, further improving the stability of the device, the inner diameter of gland 5 is greater than the diameter of pivot 1, so that the gland 5 does not contact the pivot 1, thereby avoiding the contact between the gland 5 and the pivot 1 and the abrasion caused by the rotation of the pivot 1.

[0024] When using, the two deep groove ball bearings installed on the pivot 1 complete the support outside the feeding guide wheel with support wheel 4, gland 5, bolt 6 standard parts and the like, the stability is high, the stability of the production process is guaranteed, thereby improving the production efficiency, and further reducing the production cost.

[0025] The technical scope of the utility model is not limited to the content in the above description, and those skilled in the art can deform and modify the above embodiments without departing from the technical thought of the utility model, and these deformations and modifications should belong to the protection scope of the utility model.

Claims

1. A support wheel for a precision pipe mill, characterised in that: The application relates to a rotating shaft (1) and a supporting wheel (4) arranged on the rotating shaft (1), wherein a bearing one (2) and a bearing two (3) are arranged on the rotating shaft (1) in a rotating mode, the bearing one (2) and the bearing two (3) are deep groove ball bearings with the same structure, the bearing one (2) and the bearing two (3) are respectively fixed on two end faces of the supporting wheel (4), a stepped groove is arranged in the supporting wheel (4) between the bearing one (2) and the bearing two (3), and the diameter of the stepped groove is smaller than the outer diameter of the bearing one (2) and larger than the outer diameter of a ball groove of the bearing one (2).

2. A support wheel for a precision pipe mill as claimed in claim 1, wherein: The two end faces of the supporting wheel (4) are respectively provided with grooves in interference fit with the bearing one (2) and the bearing two (3).

3. A support wheel for a precision pipe mill as defined in claim 2, wherein: The supporting wheel (4) is provided with a convex gland (5) at two ends, and the convex surface of the gland (5) is pressed into the supporting wheel (4) and adheres to one end face of the bearing one (2) or the bearing two (3).

4. A support wheel for a precision pipe mill as defined in claim 3, wherein: The outer diameter of the convex surface of the gland (5) is not larger than the outer diameter of the bearing one (2).

5. A support wheel for a precision pipe mill as defined in claim 4, wherein: The two end faces of the supporting wheel (4) are respectively provided with a plurality of threaded holes, a plurality of bolt holes are arranged on the circumferential surface of the gland (5) in correspondence, and a bolt (6) in screw thread connection with the threaded hole is arranged in the bolt hole in a sliding mode.

6. A support wheel for a precision pipe mill as defined in claim 5, wherein: The inner diameter of the gland (5) is larger than the diameter of the rotating shaft (1).

7. A support wheel for a precision pipe mill as defined in claim 6, wherein: The two end faces of the supporting wheel (4) are symmetrically arranged.

8. A support wheel for a precision pipe mill as defined in claim 1, wherein: The diameter of the stepped groove is half of the sum of the outer diameter of the bearing one (2) and the outer diameter of the ball groove of the bearing one (2).

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