CN217395368U - Guide wheel device and squaring machine - Google Patents

Abstract

The utility model belongs to the technical field of photovoltaic module production, specifically disclose a guide pulley device and squaring machine, including the main shaft, the main shaft includes benchmark portion and two location portions that are located respectively at both ends of the benchmark portion, the junction of benchmark portion and the location portion forms a limit structure; the two guide wheels are respectively sleeved on the two positioning parts; the two locking assemblies are respectively sleeved on the two positioning parts and respectively lock the two guide wheels on the two positioning parts; and the positioning ring is detachably sleeved on the positioning part and is positioned between the limiting structure and the guide wheel and is abutted against the limiting structure. The utility model can realize the mutual switching of the processing of products with different specifications on the same equipment when processing the products, and has strong universality; and the switching and upgrading of the equipment are simplified into the adjustment of the position of the guide wheel and the increase and decrease of the positioning ring, so that the operation is simpler, the manufacturing cost is low, the failure rate is low, and the device is safe and reliable.

Description

Guide wheel device and squaring machine

Technical Field

The utility model belongs to the technical field of photovoltaic module produces, especially, relate to a guide pulley device and squaring machine.

Background

The squaring machine (also called a cutting machine) is important processing equipment in the photovoltaic industry and is used for squaring a monocrystalline silicon rod into a quadrangular prism. The cutting machine comprises two groups of mutually staggered cutting units, one group of cutting units comprises two guide wheel devices which are oppositely arranged along the transverse direction, and the other group of cutting units comprises two guide wheel devices which are oppositely arranged along the longitudinal direction. Each guide wheel device comprises a main shaft and two guide wheels arranged at two ends of the main shaft, and cutting wires are wound in guide wheel grooves of each guide wheel, so that the two cutting wires are arranged in parallel along the transverse direction and the other two cutting wires are arranged in parallel along the longitudinal direction. The silicon single crystal rod is cut along the axial direction of the silicon single crystal rod through the four cutting wires so as to open the silicon single crystal rod into a quadrangular structure.

Because the most welded fastening of current guide pulley is at the tip of main shaft, therefore the distance between two guide pulleys is fixed, and the cutting distance of diamond wire is fixed on two guide pulleys promptly, leads to it can only process the silicon rod of a specification, but along with photovoltaic industry mainstream product by small-size to bigger size conversion, original guide pulley device has unable adaptation for a lot of equipment can't continue to use, can only eliminate.

At present, silicon rod cutting and processing equipment faces upgrading difficulties, or special equipment for processing larger-size silicon rods is replaced, or equipment is greatly improved, and key parts such as machine heads, guide wheels and main shafts need to be replaced in the process of transformation, however, the two solutions all have the problems of high cost and long period.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a simple structure, the guide pulley device and the squaring machine that the commonality is strong.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

a jockey wheel assembly comprising:

the main shaft comprises a reference part and two positioning parts respectively positioned at two ends of the reference part, and a limit structure is formed at the joint of the reference part and the positioning parts;

the two guide wheels are respectively sleeved on the two positioning parts;

the two locking assemblies are respectively sleeved on the two positioning parts and respectively lock the two guide wheels on the two positioning parts;

and the positioning ring is detachably sleeved on the positioning part and is positioned between the limiting structure and the guide wheel and is abutted against the limiting structure.

Optionally, the diameter of the reference portion is larger than that of the positioning portion, a step is arranged at a joint of the reference portion and the positioning portion, and the step forms the limiting structure; and/or

The number of the positioning rings is two, and the two positioning rings are respectively sleeved on the two positioning parts.

Optionally, two ends of the main shaft are further respectively provided with a connecting portion for connecting with other components, and the connecting portion is located on one side of the positioning portion departing from the reference portion.

Optionally, the locking assembly includes a pipe clamp, and the pipe clamp is provided with:

the first locking structure is used for locking and fixing the pipe hoop and the guide wheel;

and the second locking structure is used for locking and fixing the pipe hoop on the positioning part.

Optionally, the first locking structure includes a fixing member and a mounting hole provided in the pipe clamp and extending toward the guide wheel, and the guide wheel is provided with a fitting hole;

the fixing piece penetrates through the mounting hole and is in locking fit with the matching hole so as to lock and fix the pipe hoop and the guide wheel.

Optionally, the pipe hoop is provided with an abdicating notch along the circumferential direction thereof, the parts of the pipe hoop located at the two sides of the abdicating notch are respectively an installation part and a locking part, and the guide wheel is located at one side of the installation part, which is back to the locking part;

the locking part is provided with a locking notch along the axial direction, the locking notch is communicated with the yielding notch, the second locking structure comprises a locking piece, and the locking piece is locked in a gap between the two parts at the two sides of the locking notch.

Optionally, the locking part is provided with locking holes at two sides of the locking notch, and the locking part is locked in the two locking holes.

Optionally, the fixing member comprises a fixing screw, the fixing screw comprises a head portion and a screw portion, and the diameter of the head portion is larger than that of the screw portion;

the mounting hole including set up in first mounting hole on the installation department and set up in second mounting hole on the locking portion, the internal diameter of first mounting hole with the external diameter adaptation of screw rod portion, the internal diameter of second mounting hole is greater than the diameter of head.

Optionally, an inner hole is formed in the middle of the guide wheel, an installation ring is arranged on one side, back to the locking portion, of the installation portion, and the inner hole is sleeved on the installation ring; and/or

The depth of the matching hole is smaller than the thickness of the guide wheel.

The utility model also provides an evolution machine, it includes foretell guide pulley device.

The beneficial effect of this scheme: the benchmark portion of main shaft is arranged in confirming the benchmark interval between two guide pulleys in this scheme, and location portion is used for installing guide pulley and holding ring, and wherein, the holding ring is the adjusting part of distance between two guide pulleys, the utility model discloses can pull down or install the holding ring according to the processing demand and adjust the distance between two guide pulleys for process not unidimensional single crystal silicon rod, polycrystalline silicon rod etc..

The distance between the two guide wheels is adjusted as follows, when the positioning ring is not installed, the two guide wheels are locked on the positioning part through the locking assembly and are abutted against the limiting structure, and the distance between the two guide wheels is equal to the length of the reference part; when the positioning ring is installed, the positioning ring is arranged between the limiting structure and the guide wheel, the guide wheel and the positioning ring are fixed on the positioning portion through the locking assembly, and the distance between the two guide wheels is equal to the length of the reference portion plus the length of the positioning ring.

The utility model can realize the mutual switching of the processing of products with different specifications on the same equipment when processing the products, and has strong universality; and switch and upgrade simplification of equipment are adjustment and the increase and decrease of holding ring of guide pulley position, and the operation is simpler, and the cost of manufacture is low, and the fault rate is low, safe and reliable.

Drawings

Fig. 1 is a schematic perspective view of a guide wheel device according to an embodiment of the present invention;

fig. 2 is a cross-sectional view of a guide wheel device according to an embodiment of the present invention;

fig. 3 is a schematic view of a main shaft of a guide wheel device according to an embodiment of the present invention;

fig. 4 is a schematic view illustrating a pipe clamp and a guide wheel of a guide wheel device according to an embodiment of the present invention;

fig. 5 is a schematic view of an angle of a pipe clamp of a stator apparatus according to an embodiment of the present invention;

fig. 6 is a schematic view of another angle of the pipe clamp of the guide wheel device according to an embodiment of the present invention;

fig. 7 is a schematic view of the pipe clamp and the locking member of the guide wheel device according to an embodiment of the present invention.

Reference numerals in the drawings of the specification include: the pipe clamp comprises a main shaft 1, a reference part 101, a positioning part 102, a connecting part 103, a pipe clamp 2, a mounting hole 3, a second mounting hole 301, a first mounting hole 302, a fixing part 4, a guide wheel 5, a matching hole 6, a abdicating notch 7, a mounting part 8, a locking part 9, a locking notch 10, a mounting ring 11, a locking hole 12, a positioning ring 13, a locking part 14, a bolt 141, a nut 142, a limiting structure 20 and a key groove 30.

Detailed Description

Various embodiments according to the present invention will be described in detail with reference to the accompanying drawings. Here, it is to be noted that, in the drawings, the same reference numerals are given to the constituent parts having substantially the same or similar structures and functions, and repeated description thereof will be omitted.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

The existing guide wheel device comprises a main shaft 1 and two guide wheels 5 arranged at two ends of the main shaft 1, the distance between the two guide wheels 5 is fixed, namely, the cutting distance of a diamond wire on the two guide wheels 5 is fixed, so that the silicon rod can only be processed in one size specification, but the silicon rod is converted from a small size to a larger size along with the mainstream silicon rod product in the photovoltaic industry, so that the original guide wheel device cannot adapt to a new product, a plurality of devices cannot be used continuously, silicon rod developing and processing equipment faces an upgrading problem, or special equipment for processing the larger silicon rod is replaced, or the equipment is greatly improved, and the problems of high cost and long period exist in the two cases.

Based on the technical problem, the embodiment of the utility model provides a guide device, the groove distance between two guide pulleys of adjustment 5 that can the adaptability to realize the cutting to the silicon rod of different dimensions through same equipment, hoisting device's commonality. The specific scheme is as follows:

as shown in fig. 1 to 3, a guide wheel device includes a main shaft 1, two guide wheels 5, two locking assemblies, and at least one positioning ring 13, wherein the main shaft 1 includes a reference portion 101 and two positioning portions 102 respectively located at two ends of the reference portion 101, and a connection between the reference portion 101 and the positioning portions 102 forms a limiting structure 20; the two guide wheels 5 are respectively sleeved on the two positioning parts 102; the two locking assemblies are respectively sleeved on the two positioning parts 102 and respectively lock the two guide wheels 5 on the two positioning parts 102; the positioning ring 13 is detachably sleeved on the positioning portion 102, and is located between the limiting structure 20 and the guide wheel 5 and abuts against the limiting structure 20.

Based on the basic scheme, the use principle of the device is that the reference part 101 of the main shaft 1 is used for determining the reference distance between the two guide wheels 5, and the positioning part 102 is used for installing the guide wheels 5 and the positioning ring 13, wherein the positioning ring 13 is a regulating component for regulating the distance between the two guide wheels 5, and the distance between the two guide wheels 5 can be regulated by dismounting or mounting the positioning ring 13 according to the processing requirements, so as to process the monocrystalline silicon rods, the polycrystalline silicon rods and the like with different sizes.

The distance between the two guide wheels 5 is adjusted as follows, when the positioning ring 13 is not installed, the two guide wheels 5 are locked on the positioning part 102 through the locking assembly and are abutted against the limiting structure 20, and at the moment, the distance between the two guide wheels 5 is equal to the length of the reference part 101; when the positioning ring 13 is installed, the positioning ring 13 is placed between the limiting structure 20 and the guide wheel 5, and the guide wheel 5 and the positioning ring 13 are fixed on the positioning part 102 through the locking assembly, and at this time, the distance between the two guide wheels 5 is equal to the length of the reference part 101 plus the length of the positioning ring 102.

The utility model can realize the mutual switching of the processing of products with different specifications on the same equipment when processing the products, and has strong universality; and switch and upgrade simplification of equipment are adjustment and holding ring 13 increase and decrease of 5 positions of guide pulley, and the operation is simpler, and the cost of manufacture is low, and the fault rate is low, safe and reliable.

The components that make up the present idler assembly will now be described in detail:

referring to fig. 1 and 2, the positioning ring 13 is a ring-shaped member with a through hole in the middle, and the diameter of the through hole of the positioning ring 13 matches with the diameter of the positioning portion 102, that is, the diameter of the through hole of the positioning ring 13 is greater than or equal to the diameter of the positioning portion 102, and the positioning ring 13 can be in clearance fit with the positioning portion 102, so that the positioning ring 13 and the positioning portion 102 are coaxial.

Referring to fig. 2, in some embodiments, the number of the positioning rings 13 is two, two positioning rings 13 are respectively sleeved on two positioning portions 102, and the lengths of the two positioning rings 13 are equal.

Based on this structure, this device mainly has following two kinds of situations when using:

in the first case, the positioning rings 13 on both sides are detached together, so that the guide wheels 5 on both sides simultaneously abut against the limiting structure 20 and are fixed by the locking assembly, and at this time, the distance between the two guide wheels 5 is the length of the reference part 101, and the distance is small, so that the cutting device can be used for cutting small-sized products.

In the second situation, the positioning rings 13 on the two sides are respectively installed on the positioning portion 102, the positioning rings 13 are abutted to the limiting structure 20, then the guide wheel 5 is fixed on the positioning portion 102 through the locking assembly, the locking assembly is abutted to the positioning rings 13, the distance between the two guide wheels 5 is the length of the reference portion 101 plus the length of the two positioning rings 13, and the distance is large, so that the cutting tool is suitable for cutting large-size products. It should be understood that, in actual use, the length of the positioning ring 13 is mainly determined according to the edge distance, the groove distance and the like required by processing products with different specifications, and the positioning ring 13 with different lengths can be combined with the reference part 101 and the guide wheel 5 to form more cutting spaces, so that the positioning ring can be adapted to cutting products with more specifications, and the universality is stronger. For example, in this embodiment, the length of the positioning ring 12 can be processed in advance and marked according to the specification of the groove distance of each guide wheel, and the positioning ring does not need to be readjusted every time, so that the groove distance is prevented from being adjusted wrongly, the positioning ring is convenient to replace and operate, and the fool-proof effect is good.

In this embodiment, the diameter of the reference portion 101 is larger than that of the positioning portion 102, and a step is formed at the joint of the reference portion 101 and the positioning portion 102, and the step constitutes the above-mentioned limit structure 20.

Specifically, referring to fig. 2 and 3, the main shaft 1 is a stepped shaft having a large middle and small ends, a portion of the main shaft 1 having the largest diameter is a reference portion 101, and a portion contacting the reference portion 101 and having a diameter smaller than that of the reference portion 101 is a positioning portion 102. Based on the structure, when the positioning ring 13 and the guide wheel 5 are positioned on the positioning part 102, only the positioning ring needs to be abutted to the step, and the limiting mode is simple in structure and stable in limiting.

It should be understood that in other embodiments, the main shaft 1 may also be an optical axis, and the position-limiting structure 20 may be a stop ring, a block, a protrusion, or the like welded and fixed at the junction of the reference portion 101 and the positioning portion 102, which can also achieve the purpose of limiting the positioning ring 13 and the guide wheel 5.

Referring to fig. 1 to 3, in the present embodiment, the two ends of the main shaft 1 are further respectively provided with a connecting portion 103 for connecting with other components, and the connecting portion 103 is located on a side of the positioning portion 102 away from the reference portion 101.

The connecting portion 103 is provided with a key slot 30 for forming a key fit with other components to transmit torque. In this embodiment, the other component refers to a component connected to the main shaft 1 in the squaring machine, for example, a coupling connected to an output shaft of a driving motor in the squaring machine.

The diameter of the connecting part 103 is smaller than the diameter of the positioning part 102, so that the main shaft 1 is a stepped shaft with three sections of diameters, and the connecting part 103 and the positioning part 102 are distinguished through different diameters, thereby facilitating the installation and positioning of the main shaft 1. When the squaring machine is installed, the squaring machine is connected and fixed with other parts of the squaring machine through the connecting parts 103 at the two ends of the main shaft 1.

Referring to fig. 2, in the present embodiment, the locking assembly may include a pipe clamp 2, and the pipe clamp 2 may be provided with a first locking structure and a second locking structure, wherein the first locking structure is used to lock and fix the pipe clamp 2 and the guide wheel 5; the second locking structure is used to lock and fix the pipe clamp 2 to the positioning portion 102.

Referring to fig. 4, the first locking structure may include a fixing member 4, and a mounting hole 3 provided on the pipe clamp 2 and extending toward the guide wheel 5, wherein the guide wheel 5 is provided with a fitting hole 6; the fixing piece 4 passes through the mounting hole 3 and is in locking fit with the matching hole 6 to lock and fix the pipe clamp 2 and the guide wheel 5.

Specifically, referring to fig. 4, the pipe clamp 2 may be a ring-shaped member with a through hole in the middle, and the diameter of the through hole is equal to or slightly larger than the diameter of the positioning portion 102 of the main shaft 1, so that the through hole can be just sleeved on the positioning portion 102.

Referring to fig. 4, 5 and 6, the number of the mounting holes 3 on the pipe clamp 2 in the present embodiment may be three, each of the three mounting holes 3 axially penetrates the pipe clamp 2 to extend toward the guide wheel 5, and the three mounting holes 3 are circumferentially and uniformly distributed on the pipe clamp 2. It will be appreciated that in some other embodiments the number of mounting holes 3 may also be provided more. Correspondingly, in this embodiment, three fitting holes 6 may also be provided in the guide wheel 5, the three fitting holes 6 are axially provided in the guide wheel 5, and the positions of the three fitting holes 6 are exactly opposite to the positions of the three mounting holes 3, so as to facilitate positioning and mounting of the fixing element 4.

Referring to fig. 4, in order to reduce the influence of the fixing member 4 on the mass of the guide wheel 5, in this embodiment, the depth of the fitting hole 6 may be smaller than the thickness of the guide wheel 5, that is, the fitting hole 6 does not penetrate through the guide wheel 5, so that the portion of the fixing member 4 locked in the fitting hole 6 is small in volume and light in mass, and the influence of the excessive mass of the fixing member 4 on the dynamic balance of the guide wheel 5 during high-speed rotation is avoided. Wherein the fixing member 4 can be a screw, a screw or a bolt, and the matching hole 6 is a matched threaded hole.

In the above structure, the fitting hole 6 is axially arranged, mainly because the guide wheel device rotates at high speed when working, if a large screw is used to cross the guide wheel 5 as in the prior art, the large screw can greatly increase the mass of the guide wheel 5, and the balance of the rotation of the guide wheel 5 is affected. When the guide wheel 5 is damaged and needs to be replaced, the guide wheel is usually replaced singly, the same specification of the large screws in the guide wheels 5 at the two ends cannot be guaranteed during replacement, the dynamic balance of the guide wheel 5 during rotation can be influenced, and the operation stability of the diamond wire cutting device is further influenced. In the embodiment, the fixing member 4 is axially locked in the fitting hole 6, and the influence on the quality of the guide wheel 5 is small, so that the balance of the guide wheel 5 in rotation can be ensured.

Referring to fig. 5 to 7, in the present embodiment, the pipe clamp 2 may be provided with an abdicating notch 7 along the circumferential direction thereof, the portions of the pipe clamp 2 located at the two sides of the abdicating notch 7 are the mounting portion 8 and the locking portion 9, respectively, and the guide wheel 5 is located at one side of the mounting portion 8 opposite to the locking portion 9; locking breach 10 has been seted up along its axial direction on the locking portion 9, and locking breach 10 and the breach of stepping down 7 intercommunication, and second locking structure includes retaining member 14, and retaining member 14 locks the clearance between the two parts of locking breach 10 both sides. This reduces the gap between the two parts on either side of the locking notch 10, which in turn allows the pipe clamp 2 to be securely locked to the spindle.

Specifically, the notch 7 of stepping down sets up along the circumferential direction of ferrule 2 to the notch 7 of stepping down does not run through ferrule 2, specifically speaking, the central angle that the centre of a circle that the notch 7 both ends of stepping down formed rather than the place circle is less than 180 degrees, and this central angle indicates ferrule 2 and offers the central angle of the notch 7 one side of stepping down, so set up, can avoid stepping down the notch 7 too big and lead to ferrule 2 rigidity too little.

Referring to fig. 5 and 7, the offset notch 7 divides the pipe clamp 2 into an upper mounting portion 8 and a lower locking portion 9, wherein the mounting portion 8 is used for mounting the guide wheel 5, and the locking portion 9 is used for locking and fixing the pipe clamp 2 and the spindle 1.

Referring to fig. 7, a locking notch 10 is disposed on the locking portion 9, the locking notch 10 divides the locking portion 9 into a left part and a right part, in this embodiment, locking holes 12 are disposed on both sides of the locking notch 10 of the locking portion 9, and a locking member 14 is locked in the two locking holes 12.

Specifically, in the present embodiment, the locking member 14 may include a bolt 141 and a nut 142 matched with the bolt 141, and the bolt 141 passes through the locking hole 12 and is locked by the nut 142.

When the pipe clamp 2 needs to be locked on the main shaft 1, the pipe clamp 2 is firstly sleeved on the positioning part 102, then the bolt 141 penetrates through the two locking holes 12 on the locking part 9, the nut 142 is used for fastening, in the fastening process, the two sides of the locking part 9 deform and draw close to the middle, and the gap of the locking gap 10 is reduced, so that the locking part 9 is tightly abutted on the main shaft 1, a large friction force is generated between the locking part 9 and the main shaft 1, and the locking of the pipe clamp 2 and the main shaft 1 is realized.

In addition, in the locking process, the mounting part 8 and the locking part 9 are separated by the abdicating notch 7, so that the mounting part 8 cannot be influenced by the deformation of the locking part 9, and the connection stability of the mounting part 8 and the guide wheel 5 is ensured.

Referring to fig. 4, in some embodiments, the fixing member 4 comprises a set screw comprising a head portion and a shank portion, the head portion having a diameter greater than a diameter of the shank portion; the mounting hole 3 comprises a first mounting hole 302 arranged on the mounting part 8 and a second mounting hole 301 arranged on the locking part 9, the inner diameter of the first mounting hole 302 is matched with the outer diameter of the screw part, and the inner diameter of the second mounting hole 301 is larger than the diameter of the head part.

Specifically, the first mounting hole 302 is a threaded hole with a diameter matched with that of the screw portion, the second mounting hole 301 is a through hole with a diameter larger than that of the head portion, and meanwhile, the diameter of the second mounting hole 301 is larger than that of the first mounting hole 302, so that the second mounting hole and the first mounting hole are combined to form a stepped hole. In some embodiments, an anti-loose member such as a washer or a washer may be further provided between the head of the fixing screw and the side wall of the mounting portion 8.

In this embodiment, after the fixing screw is installed, the head of the fixing screw is located in the second mounting hole 301, and the inner diameter of the second mounting hole 301 is larger than the diameter of the head, so that a gap is formed between the head and the inner wall of the second mounting hole 301, so that when the locking portion 9 deforms in the process of locking the spindle 1, a certain avoiding space is formed between the second mounting hole 301 and the head, and the head is prevented from interfering with the deformation of the locking portion 9.

Referring to fig. 4 and 5, in some embodiments, a mounting ring 11 is disposed on a side of the mounting portion 8 facing away from the locking portion 9, and an inner hole is disposed in a middle portion of the guide wheel 5, and the inner hole is sleeved on the mounting ring 11. The outer diameter of the mounting ring 11 may be equal to the diameter of the inner bore of the middle of the guide wheel 5, and the length of the mounting ring 11 may be greater than or equal to the thickness of the guide wheel 5.

Based on the structure, when the guide wheel 5 and the pipe hoop 2 are assembled, the guide wheel 5 is firstly sleeved on the mounting ring 11, the mounting hole 3 in the pipe hoop 2 is opposite to the matching hole 6 in the guide wheel 5, then the fixing piece 4 penetrates through the mounting hole 3 and is locked and fixed in the matching hole 6, and the guide wheel 5 and the pipe hoop 2 are fixed.

In this embodiment, guide wheel 5 chooses for use current guide wheel structure, and it includes structures such as rim plate and rubber sleeve, no longer repeats in this embodiment.

In some embodiments, the guide wheel 5 is provided with more than two guide wheel grooves, so that during operation, the guide wheel grooves can be alternately used, the abrasion of the guide wheel grooves is balanced, and the guide wheel 5 is prevented from being damaged too early. In some embodiments, the guide wheel groove is a V-shaped groove, so that the diamond wire can be well embedded into the guide wheel groove, and the diamond wire has a good limiting effect.

The embodiment also provides a squarer which comprises any one of the guide wheel devices mentioned above. Specifically, the squarer may comprise two sets of mutually staggered cutting units, one set of cutting units comprising two guide wheel devices arranged transversely opposite each other, and the other set of cutting units comprising two guide wheel devices arranged longitudinally opposite each other. Wherein "lateral" and "longitudinal" are directions defined with reference to a plane.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.

Claims (10)

1. A jockey wheel assembly, comprising:

the main shaft (1) comprises a reference part (101) and two positioning parts (102) respectively positioned at two ends of the reference part (101), and a limiting structure (20) is formed at the joint of the reference part (101) and the positioning parts (102);

the two guide wheels (5) are respectively sleeved on the two positioning parts (102);

the two locking assemblies are respectively sleeved on the two positioning parts (102) and respectively lock the two guide wheels (5) on the two positioning parts (102);

the positioning ring (13) is detachably sleeved on the positioning part (102), is positioned between the limiting structure (20) and the guide wheel (5), and is abutted to the limiting structure (20).

2. The guide wheel device according to claim 1, wherein the diameter of the reference portion (101) is larger than that of the positioning portion (102), a step is formed at the joint of the reference portion (101) and the positioning portion (102), and the step forms the limiting structure (20); and/or

The number of the positioning rings (13) is two, and the two positioning rings (13) are respectively sleeved on the two positioning parts (102).

3. The guide wheel device according to claim 1, wherein the two ends of the main shaft (1) are respectively provided with a connecting part (103) for connecting with other components, and the connecting parts (103) are positioned on one side of the positioning part (102) away from the reference part (101).

4. The jockey device of claim 1, wherein the locking assembly comprises a pipe clamp (2), the pipe clamp (2) being provided with:

the first locking structure is used for locking and fixing the pipe hoop (2) and the guide wheel (5);

and the second locking structure is used for locking and fixing the pipe hoop (2) on the positioning part (102).

5. The guide wheel device according to claim 4, wherein the first locking structure comprises a fixing piece (4) and a mounting hole (3) which is arranged on the pipe hoop (2) and extends towards the guide wheel (5), and a matching hole (6) is arranged on the guide wheel (5);

the fixing piece (4) penetrates through the mounting hole (3) and is in locking fit with the matching hole (6) so as to lock and fix the pipe hoop (2) and the guide wheel (5).

6. The guide wheel device as claimed in claim 5, wherein the pipe hoop (2) is provided with an abdicating notch (7) along the circumferential direction thereof, the parts of the pipe hoop (2) at the two sides of the abdicating notch (7) are respectively an installation part (8) and a locking part (9), and the guide wheel (5) is arranged at one side of the installation part (8) opposite to the locking part (9);

locking breach (10) have been seted up along its axial direction on locking portion (9), just locking breach (10) with notch of stepping down (7) intercommunication, second locking structure includes retaining member (14), retaining member (14) locking the clearance between the two parts of locking breach (10) both sides.

7. The guide wheel device according to claim 6, wherein the locking portion (9) is provided with locking holes (12) at both sides of the locking notch (10), and the locking member (14) is locked in the two locking holes (12).

8. The jockey device of claim 6, wherein the fixing element (4) comprises a fixing screw comprising a head portion and a shank portion, the head portion having a diameter greater than the shank portion;

mounting hole (3) including set up in first mounting hole (302) on installation department (8) and set up in second mounting hole (301) on locking portion (9), the internal diameter of first mounting hole (302) with the external diameter adaptation of screw rod portion, the internal diameter of second mounting hole (301) is greater than the diameter of head.

9. The guide wheel device as claimed in claim 6, wherein an inner hole is formed in the middle of the guide wheel (5), a mounting ring (11) is arranged on one side of the mounting part (8) opposite to the locking part (9), and the inner hole is sleeved on the mounting ring (11); and/or

The depth of the matching hole (6) is smaller than the thickness of the guide wheel (5).

10. A squarer comprising the runner apparatus of any one of claims 1 to 9.

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