Metal cutting line guide wheel device

Abstract

A metal cutting line guide wheel device comprises a wheel disc, a rotating shaft fixedly arranged on the wheel disc, a plurality of bearings arranged on the outer wall of the rotating shaft in a sleeving mode and a bearing seat arranged on the outer walls of the bearings in a sleeving mode. The rotating shaft is rotatably arranged in the bearing seat through a bearing, one end of the rotating shaft extends out of the bearing seat and is provided with the wheel disc, one end, far away from the wheel disc, of the rotating shaft is provided with a pressing cover used for pressing an inner ring of the bearing, and one end, far away from the wheel disc, of the bearing seat is provided with a fixing cover used for pressing an outer ring of the bearing. The positioning structure is arranged to enable the bearing to be stably fixed between the bearing seat and the rotating shaft, and the rotating shaft is oppositely arranged on the inner ring of the bearing, so that the overall rotating mass is smaller and the rotating radius is smaller during working, the pulling force applied to a cutting line is smaller when the guide wheel is reversed at a high rotating speed, the probability of line breakage is effectively reduced, and the production efficiency is improved. And the mounting gravity center is changed through the connecting flanges, the rotation stress distribution is optimized, the arm of force during rotation is reduced, and the overall rotation stability of the guide wheel is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to stone material multi -line cutting equipment guide wheel technical field, concretely relates to a metal cutting line guide wheel device. BACKGROUND

[0002] The existing traditional stone material multi -line cutting machine equipment guide wheel usually is composed of 4 core parts: wheel disc, flange bearing seat, bearing, rotating shaft. When working, the rotating shaft is fixed on the frame, and the wheel disc, flange bearing seat and bearing outer ring are driven by cutting line and rotate at high speed in positive and negative directions.

[0003] With the continuous updating iteration of stone material multi -line cutting machine equipment, it has become a general trend to improve the speed of take-up and pay-off motor (above 1500r / min). The traditional guide wheel described above is easy to break the cutting line and cause the equipment to stop under the working condition of high-speed rotation and frequent commutation because the rotating inertia of the rotating part is large. Therefore, how to reduce the rotating inertia of the rotating part of the guide wheel device and make the guide wheel rotate more stably has become one of the core problems of the current stone line cutting mechanical equipment. CONTENT OF THE UTILITY MODEL

[0004] In view of the deficiencies of the prior art, the utility model aims at providing a metal cutting line guide wheel device to solve the existing problems.

[0005] In order to realize the above-mentioned purpose, the utility model is realized through the following technical scheme: a metal cutting line guide wheel device, which comprises a wheel disc, a rotating shaft fixed on the wheel disc, a plurality of bearings sleeved on the outer wall of the rotating shaft, and a bearing seat sleeved on the outer wall of the plurality of bearings.

[0006] The rotating shaft is rotatably arranged in the bearing seat through the bearing, one end of the rotating shaft extends out of the bearing seat and is provided with the wheel disc, one end of the rotating shaft away from the wheel disc is provided with a pressing cover for pressing the inner ring of the bearing, and one end of the bearing seat away from the wheel disc is provided with a fixing cover for pressing the outer ring of the bearing.

[0007] The side of the bearing seat close to the wheel disc is provided with a connecting flange extending in the radial direction, a plurality of bolt holes for connection and fixation are formed in the connecting flange, and a spacing groove is formed in the inner wall of the connecting flange extending in the radial direction.

[0008] As a further improvement, the rotating shaft comprises an engaging section fixedly connected with the wheel disc and a connecting section sleeved with the bearing, the engaging section is provided with an extension block extending in the axial direction, and a first positioning lug is arranged between the engaging section and the connecting section.

[0009] As a further improvement, the wheel disc is provided with an engaging hole matched with the extension block in the center, and a plurality of positioning holes are uniformly arranged around the engaging hole, and the wheel disc is fixedly connected with the engaging section through the positioning hole.

[0010] As a further improvement, the second positioning lug is arranged on the pressing cover and extends radially outward, and abuts against both sides of the inner ring of the bearing and fixes the inner ring to the outer wall of the connecting section.

[0011] As a further improvement, the pressing cover and the rotating shaft are fixedly connected through a screw.

[0012] As a further improvement, the first fixing lug is arranged on the inner wall of the side of the bearing seat close to the wheel disc and extends radially inward, and is used for abutting against the bearing.

[0013] As a further improvement, the second fixing lug is arranged on the fixing cover and extends axially in the interior of the bearing seat, and abuts against both sides of the outer ring of the bearing and fixes the outer ring to the outer wall of the bearing seat.

[0014] As a further improvement, the fixing cover and the bearing seat are fixedly connected through a screw.

[0015] As a further improvement, the wire cutting ring is embedded on the outside of the wheel disc, and is fixed between the wire cutting ring and the wheel disc through a bolt, and the wire cutting groove for cutting the wire is arranged on the wire cutting ring.

[0016] The utility model discloses the beneficial effect is: the utility model discloses the positioning structure that sets makes the bearing between the bearing seat and the rotating shaft stable fixed, and the inner ring of bearing is relatively arranged to the rotating shaft, and the part of participating in rotation is the wheel disc, the rotating shaft and the inner ring of bearing when working, and the whole rotation quality is smaller, and the rotation radius is smaller, and further make the rotation inertia of guide wheel smaller, and the tensile force that the cutting wire is applied is smaller when the guide wheel commutates under high speed, effectively reduce the probability of broken wire, and still change the installation gravity center through the connecting flange, optimize the rotation stress distribution, reduce the force arm when rotating, improve the whole rotation stability of guide wheel. BRIEF DESCRIPTION OF DRAWINGS

[0017] Other features, objects and advantages of the utility model will become more apparent through reading the following detailed description of non-restrictive embodiments with reference to the accompanying drawings:

[0018] Figure 1 It is whole structural schematic drawing of guide wheel device of the utility model embodiment;

[0019] Figure 2 It is sectional view of guide wheel device of the utility model embodiment;

[0020] Figure 3 It is partial sectional view of guide wheel device of the utility model embodiment;

[0021] Figure 4 The exploded view of the guide wheel device for the embodiment of the utility model.

[0022] Main figure mark explanation:

[0023] 10, wheel disc;

[0024] 101, joint hole; 102, positioning hole; 103, wire cutting ring; 104, wire cutting groove;

[0025] 20, rotating shaft;

[0026] 200, screw; 201, joint section; 202, connecting section; 203, first positioning lug; 204, extension block;

[0027] 21, compression cover;

[0028] 211, second positioning lug;

[0029] 30, bearing;

[0030] 40, bearing seat;

[0031] 401, first fixed lug;

[0032] 41, fixed cover;

[0033] 411, second fixed lug;

[0034] 42, connecting flange;

[0035] 421, bolt hole;

[0036] 422, spacing groove. DETAILED DESCRIPTION

[0037] In order to make the technical means, creative features, purposes and effects realized by the utility model easy to understand, the utility model will be further described below in combination with specific embodiments.

[0038] EMBODIMENT

[0039] As shown in Figures 1-4 The structure of a metal cutting wire guide wheel device of the embodiment of the utility model will be described in detail, which comprises a wheel disc 10, a rotating shaft 20 fixedly arranged on the wheel disc 10, a plurality of bearings 30 sleeved on the outer wall of the rotating shaft 20, and a bearing seat 40 sleeved on the outer wall of the plurality of bearings 30, that is, the inner wall of the bearing 30 is in contact with the outer wall of the rotating shaft 20, and the outer wall of the bearing 30 is in contact with the inner wall of the bearing seat 40;

[0040] The rotating shaft 20 is rotatably disposed inside the bearing housing 40 via the bearing 30. One end of the rotating shaft 20 extends out of the bearing housing 40 and is provided with the wheel 10. That is, the bearing 30 is completely disposed inside the bearing housing 40, while part of the rotating shaft 20 is disposed inside the bearing housing 40, and the other part extends out of the bearing housing 40 and is fixedly connected to the wheel 10. Thus, the rotating shaft 20 can be synchronously driven to rotate by rotating the wheel 10. The end of the rotating shaft 20 away from the wheel 10 is provided with a clamping cover 21 for pressing the inner ring of the bearing 30, and the end of the bearing housing 40 away from the wheel 10 is provided with a fixing cover 41 for pressing the outer ring of the bearing 30.

[0041] Please see Figures 2-3 As shown, the bearing housing 40 has a connecting flange 42 extending radially on the side near the wheel 10. The connecting flange 42 has several bolt holes 421 for connection and fixation. The guide wheel can be fixed to the wire cutting equipment using screws through the bolt holes 421. In other words, the center of gravity of the connecting flange 42 and the wire cutting equipment will be located on the side near the wheel 10, and also relatively behind the rotating shaft. Consequently, the rotating component (wheel 10) driven by the cutting wire is closer to the center of gravity of the guide wheel. The closer the center of mass is to the wheel 10, the smaller its lever arm will be. Furthermore, the inner ring of the bearing 30 rotates relative to the bearing seat 40 with the wheel 10 and the shaft 20, so that the rotating component (wheel 10) and the center of rotation (wheel 10 and shaft 20) are located on both sides of the fixed installation center of gravity, making the overall system more stable when the guide wheel rotates. Therefore, this embodiment not only reduces the rotational inertia of the guide wheel by rotating the shaft 20 in contact with the inner ring of the bearing 30, but also optimizes the force distribution by connecting flange 42, thereby improving the rotational stability of the guide wheel.

[0042] In addition, the inner wall of the connecting flange 42 is provided with a radially extending interval groove 422. The interval groove 422 is annular. In order to prevent the shaft 20 and bearing 30 from jamming due to long-term high-condition operation of the guide wheel and the influence of the cutting material environment, the interval groove 422 is provided to facilitate the direct addition of lubricating oil to the inside of the bearing seat 40. The annular interval groove 422 also reduces the overall weight of the bearing seat 40 and improves its service life.

[0043] Please see Figures 2-3 As shown, the rotating shaft 20 includes a connecting section 201 that is fixedly connected to the wheel 10, and a connecting section 202 that is sleeved with the bearing 30. The connecting section 201 extends axially and is provided with an extension block 204, that is, the extension block 204 extends toward the wheel 10. A first positioning protrusion 203 is provided between the connecting section 201 and the connecting section 202. The bearing 30 is sleeved on the outer wall of the connecting section 202 and one side abuts against the first positioning protrusion 203.

[0044] As shown in Figures 2-3 The second positioning protrusion 211 is arranged on the pressing cover 21 along the radial direction outward, and abuts against and fixes the inner ring of the pressing bearing 30 on both sides of the outer wall of the connecting section 202.

[0045] As shown in Figure 3 The wheel disc 10 is fixedly connected with the joint section 201 through the positioning holes 102. As a feasible implementation, screws are fixedly arranged in the positioning holes 102 to fix the wheel disc 10 and the joint section 201.

[0046] As shown in Figure 3 The first fixing protrusion 401 is arranged on the inner wall of the bearing seat 40 close to the wheel disc 10, and extends along the radial direction inward to abut against the bearing 30. The second fixing protrusion 411 is arranged on the fixed cover 41, and extends along the axial direction to the inside of the bearing seat 40. The second fixing protrusion 411 and the first fixing protrusion 401 abut against the outer ring of the bearing 30 on both sides, and fix the outer ring on the outer wall of the bearing seat 40. The abutment on both sides makes the rotating shaft more stable. As a feasible implementation, sealing grooves can be arranged on both sides of the second fixing protrusion 411, and sealing rings can be arranged in the sealing grooves to improve the sealing performance and stability.

[0047] As shown in Figure 1 , Figure 4 The pressing cover 21 and the rotating shaft 20 are fixedly connected through the screws 200, and the fixed cover 41 and the bearing seat 40 are fixedly connected through the screws 200.

[0048] As shown in Figure 2As shown, the wheel disc 10 is externally embedded with a wire cutting ring 103, the wire cutting ring 103 is fixed between the wheel disc 10 by bolts, and the wire cutting ring 103 is also provided with a wire cutting groove 104 for cutting wire winding work, the wire cutting groove 104 is preferably provided as a V-shaped groove in this embodiment, when the equipment is running, the cutting wire rotates in the wire cutting groove 104, thereby driving the entire wheel disc 10 to rotate, the wheel disc 10 synchronously drives the rotating shaft 20 to rotate, since the rotating shaft 20 is relatively fixed with the inner wall of the bearing 30, the part participating in rotation during work is the wheel disc 10, the rotating shaft 20 and the inner ring of the bearing 30, the overall rotating mass is smaller, the rotating radius is smaller, even in the case of improving the take-up motor speed, the rotating inertia of the guide wheel is smaller, when the guide wheel commutates at high speed, the tension applied to the cutting wire is smaller, effectively reducing the probability of wire breakage.

[0049] The basic principle and main features of the present application and the advantages of the present application are shown and described above, for those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and the present application can be realized in other specific forms without departing from the spirit or basic characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0050] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A metal cutting thread guide wheel device, characterized in that, It includes a wheel disc (10), a rotating shaft (20) fixed on the wheel disc (10), a plurality of bearings (30) sleeved on the outer wall of the rotating shaft (20), and a bearing seat (40) sleeved on the outer wall of the plurality of bearings (30); The rotating shaft (20) is rotatably arranged in the bearing seat (40) through the bearing (30), one end of the rotating shaft (20) extends out of the bearing seat (40) and is provided with the wheel disc (10), wherein one end of the rotating shaft (20) away from the wheel disc (10) is provided with a pressing cover (21) for pressing the inner ring of the bearing (30), and one end of the bearing seat (40) away from the wheel disc (10) is provided with a fixed cover (41) for pressing the outer ring of the bearing (30); The side of the bearing seat (40) close to the wheel disc (10) is provided with a connecting flange (42) extending in the radial direction, a plurality of bolt holes (421) for connecting and fixing are formed in the connecting flange (42), and a spacing groove (422) is formed in the inner wall of the connecting flange (42) extending in the radial direction.

2. A metal cutting thread guide wheel assembly according to claim 1 wherein: The rotating shaft (20) includes an engaging section (201) fixedly connected with the wheel disc (10) and a connecting section (202) sleeved with the bearing (30), the engaging section (201) is provided with an extension block (204) extending in the axial direction, and the first positioning protrusion (203) is arranged between the engaging section (201) and the connecting section (202).

3. A metal cutting thread guide wheel assembly according to claim 2, wherein: The center of the wheel disc (10) is provided with an engaging hole (101) matched with the extension block (204) and a plurality of positioning holes (102) uniformly arranged around the engaging hole (101), and the wheel disc (10) is fixedly connected with the engaging section (201) through the positioning holes (102).

4. A metal cutting thread guide wheel assembly according to claim 2, wherein: The second positioning protrusion (211) extending outward in the radial direction is arranged on the pressing cover (21), and the second positioning protrusion (211) abuts against both sides of the inner ring of the bearing (30) and fixes the inner ring on the outer wall of the connecting section (202) by abutting against the first positioning protrusion (203).

5. A metal cutting thread guide wheel assembly according to claim 4, wherein: The pressing cover (21) and the rotating shaft (20) are fixedly connected through the screw (200).

6. A metal cutting thread guide wheel assembly as claimed in claim 1, wherein: The first fixing protrusion (401) is arranged on the inner wall of the side of the bearing seat (40) close to the wheel disc (10) and extends inward in the radial direction, and is used for abutting against the bearing (30).

7. A metal cutting thread guide wheel assembly according to claim 6 wherein: The second fixing protrusion (411) is arranged on the fixed cover (41) and extends in the axial direction in the interior of the bearing seat (40), the second fixing protrusion (411) abuts against both sides of the outer ring of the bearing (30) and fixes the outer ring on the outer wall of the bearing seat (40) by abutting against the first fixing protrusion (401).

8. A metal cutting thread guide wheel assembly according to claim 7, wherein: The fixed cover (41) and the bearing seat (40) are fixedly connected through the screw (200).

9. A metal cutting thread guide wheel assembly as defined in claim 1, wherein: The wire cutting ring (103) is embedded on the outside of the wheel disc (10), the wire cutting ring (103) and the wheel disc (10) are fixed by bolts, and the wire cutting groove (104) for cutting wire winding work is formed in the wire cutting ring (103).

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