Hot spinning pulley machine

Abstract

A kind of hot spinning pulley machine, including frame, first die head propulsion mechanism, second die head propulsion mechanism, motor speed reducer and heating mechanism are equipped on frame, the output shaft of speed reducer is fixedly connected with rotating platform by transmission shaft sleeve;The bottom of frame is equipped with jacking oil cylinder, the piston rod of jacking oil cylinder is rotatably connected with jacking platform by downward rotating jacking device.The bottom of rotating jacking device is fixedly connected with the shaft end of oil cylinder piston rod, the lower portion of passive rotating shaft in bearing base is equipped with plane pressure bearing, the upper portion of passive rotating shaft is equipped with cylindrical roller bearing.The bearing base of the utility model is open upward, and is bowl-shaped, lubricating oil is not lost after being heated, plane pressure bearing is installed at position far from heat source, so that plane pressure bearing is lubricated well, is not easy to be damaged, damage rate is extremely low, greatly reduces maintenance workload and trouble, and loss of shutdown, greatly improves economic benefits.

Description

Technical Field

[0001] This utility model relates to a pulley manufacturing equipment, and more particularly to a hot spinning pulley machine used in the lifting machinery industry. Background Technology

[0002] Currently used hot spinning pulley machines have a flat bearing installed in the bearing housing below the tightening platform, and the lower end of the bearing housing is equipped with an end cover. The flat bearing is most frequently damaged due to heat and lack of lubrication. The disadvantages of this bearing housing structure are: 1. Due to the downward opening of the bearing housing and the poor sealing of the end cover, the lubricating oil inside the bearing housing easily leaks out significantly from the gaps in the end cover after the bearing housing is heated. 2. Because the flat bearing is installed in the upper part of the bearing housing cavity, close to the tightening platform and separated from the top plate of the bearing housing by only one plate, it is subject to severe heat during operation, easily causing lubrication loss and resulting in a high failure rate of the flat bearing. 3. This structure cannot be lubricated. Each time lubrication is added, the end cover and the entire bearing inside the bearing housing must be removed, lubricated, and reassembled. Therefore, maintenance work for bearing lubrication is very cumbersome, the workload is large and troublesome, and the downtime and production losses are significant. Utility Model Content

[0003] The purpose of this utility model is to provide a hot spinning pulley machine with well-lubricated planar bearings that are not easily damaged, which can greatly reduce the workload and trouble of maintenance and reduce downtime losses.

[0004] To achieve the above objectives, the technical solution of this utility model is: a hot spinning pulley machine, comprising a frame, on which a first die head pushing mechanism, a second die head pushing mechanism, a motor reducer, and a heating mechanism are mounted. A first die head is rotatably connected to the front end of the first die head pushing mechanism, and a second die head is also rotatably connected to the front end of the second die head pushing mechanism. A clamping platform is installed at the bottom of the frame, and a rotating platform is provided above the frame corresponding to the clamping platform. The frame includes a motor reducer base, an upper platform, a column, an inclined support, and a frame base. One end of the column and the inclined support are fixed to the upper platform, and the other end is fixedly connected to the frame base. The motor reducer is fixedly connected to the upper platform through the motor reducer base. The output shaft is connected to the rotating platform via a transmission; a cooling water tank is provided above the rotating platform, the cooling water tank including an inlet pipe and an outlet pipe; a clamping cylinder is provided on the frame base of the frame; the improvement is that: the piston rod of the clamping cylinder is rotatably connected to the clamping platform through a downward-opening rotating clamping device, the downward-opening rotating clamping device including a bearing base, a flat pressure bearing, a cylindrical roller bearing, a passive rotating shaft and a positioning block, the opening of the bearing base is upward, the bottom of the bearing base is fixedly connected to the shaft end of the cylinder piston rod, the lower part of the passive rotating shaft in the bearing base is equipped with the flat pressure bearing, and the upper part of the passive rotating shaft and above the flat pressure bearing is equipped with the cylindrical roller bearing.

[0005] In the above technical solution, a spacer is installed in the middle of the passive rotating shaft and the spacer is located between the cylindrical roller bearing and the planar pressure bearing, or the outer diameter of the inner ring of the cylindrical roller bearing is greater than or equal to the outer diameter of the planar pressure bearing.

[0006] In the above technical solution, the rotary clamping device also includes lubrication holes and oil plug bolts. Several lubrication holes are opened at positions on the upper plane of the passive rotating shaft corresponding to the cylindrical rollers of the cylindrical roller bearing, and the holes are plugged with oil plug bolts.

[0007] In the above technical solution, the heating mechanism is an induction coil heating device or an oxygen-propane heating device.

[0008] In the above technical solution, the first mold head pushing mechanism includes a first pushing cylinder fixed to the frame, the piston rod of the first pushing cylinder is fixedly connected to a first pushing fork, the first pushing fork is slidably engaged with the frame, and the front end of the first pushing fork is rotatably connected to the first mold head through a first shaft; the second mold head pushing mechanism includes a second pushing cylinder fixed to the frame base, the piston rod of the second pushing cylinder is fixedly connected to a second pushing fork, the second pushing fork is slidably engaged with the frame, and the front end of the second pushing fork is rotatably connected to the second mold head through a second shaft.

[0009] The beneficial effects of adopting the above structure are as follows: 1. Because the opening of the bearing base of the rotary clamping device faces upward and is bowl-shaped, even when the bearing is heated, the lubricating oil will not leak out, resulting in a very low bearing damage rate and ensuring normal machine operation. 2. The flat pressure bearing inside the bearing base of this rotary clamping device is installed at a position far from the heat source of the clamping platform, that is, at the bottom of the bearing base cavity, which greatly improves the heating effect and thus significantly reduces the bearing damage rate. Therefore, after adopting this structure, the flat pressure bearing of the hot spinning pulley machine is well lubricated, not easily damaged, greatly reducing the workload and trouble of maintenance, reducing downtime losses, and greatly improving economic efficiency. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 yes Figure 1 A structural diagram showing the installation location of the central cooling water tank and the rotating platform; Figure 3 yes Figure 1 A schematic diagram of a structure for installing a rotating clamping device and a clamping platform; Figure 4 yes Figure 1 Another structural diagram of the installation of the rotating clamping device and the clamping platform. Detailed Implementation

[0011] The present invention will be further described in detail below with reference to the embodiments given in the accompanying drawings.

[0012] like Figure 1 , 2 As shown in Figures 3 and 4, the hot spinning pulley machine of this utility model includes a frame 1. The frame 1 is equipped with a first die head pushing mechanism 2, a second die head pushing mechanism 3, a motor reducer 9, and a heating mechanism 10. The front end of the first die head pushing mechanism 2 is rotatably connected to a first die head 7, and the front end of the second die head pushing mechanism 3 is also rotatably connected to a second die head 6. A clamping platform 4 is installed at the bottom of the frame 1, and a rotating platform 5 is provided above the frame 1 corresponding to the clamping platform 4.

[0013] like Figure 1 As shown, the frame 1 includes a motor reducer base 1-1, an upper platform 1-2, a column 1-3, an inclined support 1-4, and a frame base 1-5. One end of the column 1-3 and the inclined support 1-4 are fixed to the upper platform 1-2, and the other end is fixedly connected to the frame base 1-5. The motor reducer 9 is fixedly connected to the upper platform 1-2 through the motor reducer base 1-1, and the output shaft of the motor reducer 9 is connected to the rotating platform 5 for transmission, thereby greatly increasing the stability of the motor reducer base 1-1 during operation.

[0014] like Figure 1 As shown, the first die head pushing mechanism 2 includes a first pushing cylinder 2-1 fixed to the frame 1. The piston rod of the first pushing cylinder 2-1 is fixedly connected to a first pushing fork 2-2. The first pushing fork 2-2 is slidably engaged with the frame 1. The front end of the first pushing fork 2-2 is rotatably connected to the first die head 7 via a first shaft 2-3. The second die head pushing mechanism 3 includes a second pushing cylinder 3-1 fixed to the frame base 1-5. The piston rod of the second pushing cylinder 3-1 is fixedly connected to a second pushing fork 3-2. The second pushing fork 3-2 is slidably engaged with the frame 1. The front end of the second pushing fork 3-2 is rotatably connected to the second die head 6 via a second shaft 3-3. This ensures a stable and convenient connection.

[0015] like Figure 1 , 2 As shown, a cooling water tank 11 is provided above the rotating platform 5. The cooling water tank 11 includes an inlet pipe 11-1 and an outlet pipe 1-2. During hot spinning operation, the rotating platform 5 can be cooled, thus extending the service life of the equipment.

[0016] like Figure 1 , 3 As shown in Figure 4, a clamping cylinder 8 is provided on the frame base 1-5 of the frame 1. The piston rod of the clamping cylinder 8 is rotatably connected to the clamping platform 4 through an upward-opening rotary clamping device 12. The downward-opening rotary clamping device 12 includes a bearing base 12-1, a planar pressure bearing 12-2, a cylindrical roller bearing 12-3, a passive rotating shaft 12-4, and a positioning block 12-7. The opening of the bearing base 12-1 is upward, and the bottom of the bearing base 12-1 is fixedly connected to the shaft end of the piston rod 8-1 of the cylinder. The planar pressure bearing 12-2 is installed at the lower part of the passive rotating shaft 12-4 inside the bearing base 12-1, and the cylindrical roller bearing 12-3 is installed at the upper part of the passive rotating shaft 12-4 and above the planar pressure bearing 12-2. This structure ensures that the piston rod of the clamping cylinder 8 only transmits upward clamping force without rotating, while the clamping platform 4 can rotate flexibly with the rotating platform 5 when clamping the workpiece, guaranteeing smooth and stable hot spinning operation. Furthermore, because the opening of the bearing base 12-1 of the rotating clamping device 12 faces upward and is bowl-shaped, lubricating oil does not leak even after the bearing is heated, resulting in a very low bearing damage rate and ensuring normal machine operation. Simultaneously, the planar pressure bearing inside the bearing base is installed at a location far from the heat source of the clamping platform, i.e., at the bottom of the bearing base cavity, greatly improving the heating effect and thus significantly reducing the bearing damage rate.

[0017] like Figure 3The diagram shows a structural schematic of the installation of the rotary clamping device 12 and the clamping platform 4. A spacer 12-8 is installed in the middle of the passive rotating shaft 12-4, and the spacer 12-8 is located between the cylindrical roller bearing 12-3 and the planar pressure bearing 12-2. Because a spacer (12-8) is added between the upper and lower bearings, it is not necessary to consider... Figure 4 The structure shown should avoid friction between the moving ring and stationary ring in the upper and lower bearings.

[0018] like Figure 4 The diagram shows another structural arrangement of the rotary clamping device 12 and the clamping platform 4, where the outer diameter of the inner ring of the cylindrical roller bearing 12-3 is greater than or equal to the outer diameter of the planar pressure bearing 12-2. This structure is designed to prevent friction between the moving and stationary rings in the upper and lower bearings.

[0019] like Figure 3 , 4 As shown, the upward-opening rotary clamping device 12 also includes lubrication holes 12-5 and oil plug bolts 12-6. Several lubrication holes 12-5 are provided on the upper plane of the passive rotating shaft 12-4 at positions corresponding to the cylindrical rollers of the cylindrical roller bearing 12-3, and the holes are plugged with oil plug bolts 12-6. Since the upper part of the bearing base cavity of this upward-opening rotary clamping device is a cylindrical roller bearing, lubrication holes can be added at positions corresponding to the rollers of the cylindrical roller bearing on the upper plane of the passive rotating shaft. This allows for the addition of lubricating oil at any time, ensuring that all bearings in the bearing base cavity of the rotary clamping device are never short of lubricating oil. Frequent disassembly and assembly for adding lubricating oil is unnecessary. This not only keeps the planar pressure bearing well-lubricated for a long time, preventing damage, but also simplifies maintenance, greatly reducing the workload and hassle of repairs, minimizing downtime losses, and significantly improving economic efficiency.

Claims

1. A hot spinning pulley machine, comprising a frame (1), on which a first die head pushing mechanism (2), a second die head pushing mechanism (3), a motor reducer (9), and a heating mechanism (10) are mounted. The front end of the first die head pushing mechanism (2) is rotatably connected to a first die head (7), and the front end of the second die head pushing mechanism (3) is also rotatably connected to a second die head (6). A clamping platform (4) is mounted at the bottom of the frame (1), and a rotating platform (5) is provided above the frame (1) corresponding to the clamping platform (4). The frame (1) includes a motor reducer base (1-1), an upper platform (1-2), a column (1-3), and an inclined... Support (1-4) and frame base (1-5), one end of the column (1-3) and the diagonal support (1-4) is fixed on the upper platform (1-2), and the other end is fixedly connected to the frame base (1-5). The motor reducer (9) is fixedly connected to the upper platform (1-2) through the motor reducer seat (1-1), and the output shaft of the motor reducer (9) is connected to the rotating platform (5) for transmission. A cooling water tank (11) is provided above the rotating platform (5), and the cooling water tank (11) includes an inlet pipe (11-1) and an outlet pipe (11-2). A clamping cylinder (8) is provided on the frame base (1-5) of the frame (1). The feature is that: The piston rod of the clamping cylinder (8) is rotatably connected to the clamping platform (4) through a downward-opening rotating clamping device (12). The downward-opening rotating clamping device (12) includes a bearing base (12-1), a planar pressure bearing (12-2), a cylindrical roller bearing (12-3), a passive rotating shaft (12-4), and a positioning block (12-7). The opening of the bearing base (12-1) is upward, and the bottom of the bearing base (12-1) is fixedly connected to the shaft end of the piston rod (8-1) of the cylinder. The planar pressure bearing (12-2) is installed at the lower part of the passive rotating shaft (12-4) inside the bearing base (12-1), and the cylindrical roller bearing (12-3) is installed at the upper part of the passive rotating shaft (12-4) and above the planar pressure bearing (12-2).

2. The hot spinning pulley machine according to claim 1, characterized in that: The passive rotating shaft (12-4) is equipped with a spacer (12-8) in the middle and the spacer (12-8) is located between the cylindrical roller bearing (12-3) and the planar pressure bearing (12-2). Alternatively, the outer diameter of the inner ring of the cylindrical roller bearing (12-3) is greater than or equal to the outer diameter of the planar pressure bearing (12-2).

3. The hot spinning pulley machine according to claim 1 or 2, characterized in that: The rotating clamping device (12) also includes a lubrication hole (12-5) and an oil plug bolt (12-6). Several lubrication holes (12-5) are opened at the position corresponding to the cylindrical roller of the cylindrical roller bearing (12-3) on the upper plane of the passive rotating shaft (12-4), and the holes are plugged with oil plug bolts (12-6).

4. The hot spinning pulley machine according to claim 1, characterized in that: The heating mechanism (10) is an induction coil heating device or an oxygen propane heating device.

5. The hot spinning pulley machine according to claim 1, characterized in that: The first mold head pushing mechanism (2) includes a first pushing cylinder (2-1) fixed to the frame (1), the piston rod of the first pushing cylinder (2-1) is fixedly connected to a first pushing fork (2-2), the first pushing fork (2-2) is slidably engaged with the frame (1), and the front end of the first pushing fork (2-2) is rotatably connected to the first mold head (7) through the first shaft (2-3); the second mold head pushing mechanism (3) includes a second pushing cylinder (3-1) fixed to the frame base (1-5), the piston rod of the second pushing cylinder (3-1) is fixedly connected to a second pushing fork (3-2), the second pushing fork (3-2) is slidably engaged with the frame (1), and the front end of the second pushing fork (3-2) is rotatably connected to the second mold head (6) through the second shaft (3-3).

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