WO2021238332A1

WO2021238332A1 - Inner-bracing rim rolling machine

Info

Publication number: WO2021238332A1
Application number: PCT/CN2021/079729
Authority: WO
Inventors: 李妙聪; 姚佳辉; 潘卫民; 周密
Original assignee: 浙江风驰机械有限公司
Priority date: 2020-05-27
Filing date: 2021-03-09
Publication date: 2021-12-02
Also published as: CA3107202C; CN111589929A; CA3107202A1

Abstract

An inner-bracing rim rolling machine, comprising a working table (1). The working table is provided with a rotating shaft (2) vertically provided on and penetrating through the working table, and is further provided with an oil supply system; the oil supply system comprises an oil injection shell (11) having a plurality of oil injection ports (10), and a plurality of oil delivery pipes (12); first sealing units (14) are provided on the inner circumferential wall at the upper and lower ends of the oil injection shell; a second sealing unit (15) is provided on the inner circumferential wall of the oil injection shell between the two first sealing units; two oil storage cavities (16) filled with oil are formed among the two first sealing units, the second sealing unit, and the rotating shaft; a plurality of oil passages (17) are provided on the upper end surface of the rotating shaft; radial flow passages (18) which are provided in the radial direction are provided between the oil passages on the rotating shaft and the corresponding oil storage cavities. The inner-bracing rim rolling machine has the advantages of improving sealability and reducing oil leakage.

Description

Inner support type rim rolling machine

Technical field

The invention belongs to the technical field of rim forming, and relates to an inner support type rim rolling machine.

Background technique

Before the wheel rim is formed, the steel plate is cut into strips, which are rolled, butt-welded, and flattened to form a rim blank ring. The blank ring is loaded into the rim spinning machine for spinning forming. The existing wheel rim forming process uses an external pressure type and an internal support type. The difference is that the outer mold or the inner mold is fixed, and then the inner mold or the rotation of the outer mold is used to plastically transform the rough ring. This patent refers to the inner support type rim spinning machine. The blank ring is placed on the upper part of the rotating drum of the rotating mechanism, and the self-locking positioning device is activated to fix the blank ring. The blank ring is passed through the control device by the inner mold on the rotating drum. According to the sequence from the inside to the outside, one side radially expands, the other side spins, the blank ring is pressed against the inner wall of the positioning mold to form, so that the metal at both ends of the blank ring is plastically slipped to the middle section. The existing inner support type The oil passage in the rim spinning machine is assembled from upper and lower parts. During long-term use, due to the continuous change of oil pressure during operation, leakage at the connection may occur, which will cause the product to lose pressure when it loses pressure. Damage occurs due to insufficient pressure.

Summary of the invention

The purpose of the present invention is to solve the above-mentioned problems in the prior art and provide an internal support type rim rolling machine which improves the sealing effect, reduces oil leakage and prolongs the service life.

The purpose of the present invention can be achieved by the following technical solutions: an internal support type rim rolling machine, including a worktable, the worktable is provided with a rotating shaft vertically passing through the worktable, and the rotating shaft passes through upper and lower bearing seats It is fixedly connected with the worktable, and the rotating shaft is driven to rotate by a driving mechanism provided on the worktable. The upper end of the rotating shaft passing through the worktable is provided with two or more radially movable inner walls and used for forming the upper and lower contours of the inner wall of the rim. Mold, the rotating shaft is provided with a number of installation pockets with the same number as the inner mold and for the installation of the inner mold. The workbench is also provided with a self-locking positioning device. The positioning device is composed of a guiding mechanism, a driving mechanism and two It is composed of an outer mold matched with an inner mold, and an oil supply system is also provided on the workbench. The above-mentioned driving mechanism 1, positioning device and oil supply system are all controlled by the control system. The oil supply system includes On the lower end, it is fixedly connected to the shaft and has a number of oil injection ports, and is composed of a number of oil pipes with the same number of oil injection ports that connect the oil injection case and the oil supply system, and the oil injection case is located at the oil injection port There is an oil injection interface fixedly connected with the oil pipeline at the position, and the inner peripheral wall of the oil injection housing at the upper and lower ends is provided with a plurality of radially inward protrusions for strengthening the seal Sealing unit one, the inner peripheral wall of the oil filling housing located between two sealing units one is provided with a sealing unit two composed of a number of radially inward protrusions for enhancing the sealing performance, and passing through two sealing units 1. Two oil storage cavities for filling oil are formed between the second sealing unit and the rotating shaft. Several oil injection ports are arranged on the outer peripheral wall of the oil storage cavity in the oil filling housing. The upper part of the rotating shaft A number of oil passages arranged vertically and arranged along the circumferential direction of the rotating shaft are opened on the end surface, and the oil passages extend to the corresponding oil storage cavity, and the number of the oil passages is the same as the number of the installation grooves. A radial flow channel arranged radially is arranged between the oil passage and the corresponding oil storage cavity.

In the above-mentioned internal support type rim rolling machine, a sealing ring for enhancing the sealing performance is provided between two adjacent protrusions in the first sealing unit and the second sealing unit.

In the above-mentioned inner support type rim rolling machine, both ends of the oil injection housing are provided with grooves recessed axially inward, and the oil injection housing is located in the corresponding grooves with A ring-shaped gasket with enhanced sealing performance.

In the above-mentioned inner support type rim rolling machine, a sealing plug for sealing the oil passage is provided at the opening of the rotating shaft in the oil passage, and a sealing plug for sealing the oil passage is provided between the rotating shaft and the corresponding sealing plug Seal the cover.

In the above-mentioned inner support type rim rolling machine, a radial oil passage is respectively provided between the oil passage and the corresponding installation groove, and a piston is arranged in the radial oil passage. When the inner mold is in the original position At this time, the back of the inner mold is against the outlet of the radial oil passage, and the inner mold is driven by the piston and the hydraulic oil in the oil passage to move radially.

In the above-mentioned inner support type rim rolling machine, the outer peripheral wall at the upper and lower ends of the rotating shaft is horizontally provided with more than one return spring for resetting the original position of the inner mold, and the return spring is ring-shaped , The ring is on the periphery of the rotating shaft and encloses the inner mold.

Compared with the prior art, the inner support type rim rolling machine has the following advantages:

1. The oil supply system includes an oil injection shell sleeved on the lower end of the rotating shaft and fixedly connected to the rotating shaft with a number of oil injection ports, and several oil injection ports with the same number as the oil injection shell and the oil supply system. It is composed of oil delivery pipes. The oil injection housing is located at the oil injection port and is provided with an oil injection interface that is fixedly connected to the oil delivery pipe. To form a sealing unit 1 for enhancing the sealing performance, the inner peripheral wall of the oil injection housing between the two sealing units 1 is provided with a sealing unit 2 consisting of several radially inward protrusions for enhancing the sealing performance, and passes Two oil storage cavities for filling oil are formed between the two sealing units one, the two sealing units and the rotating shaft. A number of the oil injection ports are all provided on the outer peripheral wall of the oil storage cavity in the oil injection housing. A number of oil passages arranged vertically and along the circumferential direction of the rotating shaft are opened on the upper end surface, and the oil passages extend to the corresponding oil storage cavity, and the number of the oil passages is the same as the number of the installation grooves. The oil on the rotating shaft A radial flow channel is arranged between the oil channel and the corresponding oil storage cavity. The arrangement of the above-mentioned structure enables the oil channel to be arranged in the rotating shaft, and at the same time, an oil inlet port is arranged at the lower part of the rotating shaft, which improves the sealing performance and reduces The occurrence of oil leakage will extend its service life at the same time.

Description of the drawings

Figure 1 is a schematic diagram of the three-dimensional structure of the internal support type rim rolling machine.

Figure 2 is a schematic cross-sectional view of the entire internal support type rim rolling machine.

Fig. 3 is a schematic cross-sectional view of the E-E direction of the rotating shaft of the inner support type rim rolling machine.

Fig. 4 is an enlarged view of circle A in Fig. 3 in the internal support type rim rolling machine.

In the figure, 1. Workbench; 2. Rotation shaft; 3. Drive mechanism one; 4. Inner mold; 5. Mounting pocket; 6. Positioning device; 7. Guide mechanism; 8. Drive mechanism two; 9. Outer mold; 10. Oil injection port; 11. Oil injection housing; 12. Oil delivery pipe; 13. Oil injection interface; 14. Seal unit one; 15. Seal unit two; 16. Oil storage cavity; 17, Oil passage; 18. Radial flow passage; 19. Seal ring; 20. Groove; 21. Seal gasket; 22. Seal plug; 23. Seal cover; 24. Radial oil passage.

Detailed ways

The following are specific embodiments of the present invention combined with the accompanying drawings to further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

As shown in Figure 1, Figure 2, Figure 3, and Figure 4, the internal support type rim rolling machine includes a worktable 1, on which a rotating shaft 2 is arranged vertically through the worktable 1, and the rotating shaft 2 The upper and lower bearing seats are fixedly connected to the worktable 1, and the rotating shaft 2 is driven to rotate by the driving mechanism 1-3 provided on the worktable 1, and the output shaft in the driving mechanism 1-3 is driven and matched with the rotating shaft 2 through a chain. The rotating shaft 2 is located on the outer peripheral wall of the chain with a sprocket matching the chain. The connection between the sprocket and the rotating shaft 2 can be detachable connection or integrally formed. More than one inner mold 4 that can move radially and is used to form the upper and lower contours of the inner wall of the rim. The rotating shaft 2 is provided with a number of installation slots 5 that are the same as the inner mold 4 and are installed on the inner mold 4. On the workbench 1. A self-locking positioning device 6 is also provided. The positioning device 6 is composed of a guide mechanism 7, a driving mechanism 8 and two outer molds 9 that are matched with the inner mold 4. The guide mechanism 7 is composed of two sliding slides arranged in parallel with each other. Rods, support seats arranged at both ends of the corresponding sliding rods and used to support the corresponding sliding rods, and two sleeves on the two sliding rods and for the installation of the corresponding outer mold 9 and the installation of the drive to move through the driving mechanism two 8. The driving mechanism two 8 is composed of an oil cylinder, a rocker arm and a connecting rod. The two sides of the workbench 1 are hinged with a rocker arm. One end of the rocker arm is hinged with the piston rod of the cylinder, and the other end of the cylinder is hinged on the workbench 1 At the bottom, the other end of the rocker arm is hinged with one end of the connecting rod, and the other end of the connecting rod is hinged with the mounting block. The workbench 1 is also provided with an oil supply system. The above-mentioned driving mechanism 3, positioning device 6 and oil supply system all pass The control system controls the work. The oil supply system includes an oil injection housing 11 sleeved on the rotating shaft 2 at the lower end of the worktable 1 and fixedly connected to the rotating shaft 2 with a number of oil injection ports 10, and a number of oil injection ports 10 The same oil delivery pipe 12 that connects the oil injection housing 11 with the oil supply system is composed, and the oil injection housing 11 is located at the oil injection port 10 and is provided with an oil injection port 13 fixedly connected to the oil delivery pipe 12 and matched with the oil injection housing 11. The inner peripheral wall at the upper and lower ends is provided with a sealing unit 14 composed of a number of radially inward protrusions for enhancing the sealing performance, and the oil injection housing 11 is located on the inner peripheral wall between the two sealing units 14 A sealing unit 15 composed of a number of radially inward protrusions is provided to enhance the sealing performance, and two sealing units 14 are formed between the two sealing units 14, the sealing unit 15 and the rotating shaft 2 to be filled with oil. The oil storage cavity 16, a number of the oil injection ports 10 are all arranged on the outer peripheral wall of the oil storage cavity 16 in the oil injection housing 11. The upper end surface of the rotating shaft 2 is provided with several vertically arranged and arranged along the circumferential direction of the rotating shaft 2 The oil passage 17 of the oil passage 17 extends to the corresponding oil storage cavity 16, and the number of the oil passage 17 is the same as the number of the installation pocket 5, and the vertical center line of the oil passage 17 is the same as the corresponding installation pocket 5 The horizontal center lines of the crosses and are perpendicular to each other, and a radial flow channel 18 is provided between the several oil passages 17 on the rotating shaft 2 and the corresponding oil storage cavity 16 in a radial direction.

In further detail, in order to further improve the sealing performance, a sealing ring 19 is provided between two adjacent protrusions in the sealing unit 14 and the sealing unit 15 to enhance the sealing performance, and both ends of the oil injection housing 11 are provided with shafts. In the inwardly recessed groove 20, the oil filling housing 11 is located in the corresponding groove 20 and is provided with a sealing gasket 21 that strengthens the sealing performance and is arranged in an annular shape.

As a preferred structure, the rotating shaft 2 is provided with a sealing plug 22 for sealing the oil passage 17 at the opening of the oil passage 17, and a sealing cover 23 is provided between the rotating shaft 2 and the corresponding sealing plug 22.

As a preferred structure, a radial oil passage 24 is provided between the oil passage 17 and the corresponding installation pocket 5, and a piston is arranged in the radial oil passage 24. When the inner mold 4 is in the original position, the back of the inner mold 4 Contradicting to the outlet of the radial oil passage 24, the inner mold 4 is driven by the piston and the hydraulic oil in the oil passage 17 to move radially.

In further detail, in order to facilitate the resetting of the inner mold 4, more than one return spring for resetting the original position of the inner mold 4 is horizontally arranged on the outer peripheral wall of the rotating shaft 2 at the upper and lower ends. 2 and enclose the inner mold 4 inside.

The specific embodiments described herein are merely examples to illustrate the spirit of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or additions to the specific embodiments described or use similar alternatives, but they will not deviate from the spirit of the present invention or exceed the definitions defined in the appended claims. Range.

Claims

An inner support type rim rolling machine includes a worktable (1). The worktable (1) is provided with a rotating shaft (2) vertically passing through the worktable (1). The rotating shaft (2) passes through the upper, The lower bearing seat is fixedly connected with the worktable (1), and the rotating shaft (2) is driven to rotate by a driving mechanism (3) provided on the worktable (1), and the rotating shaft (2) passes through the worktable (1) The upper end is provided with two or more inner molds (4) that can move radially and are used to shape the upper and lower side contours of the inner wall of the rim. The rotating shaft (2) is provided with several inner molds (4) with the same number as the inner molds (4) and for the inner molds (4). ) Is installed in the installation container (5), the workbench (1) is also provided with a self-locking positioning device (6), the positioning device (6) consists of a guide mechanism (7), two driving mechanisms (8) and two It is composed of an outer mold (9) matched with the inner mold (4). The workbench (1) is also provided with an oil supply system. The above-mentioned driving mechanism (3), positioning device (6) and oil supply system are all controlled The system control work is characterized in that the oil supply system includes an oil injection housing (11) sleeved on the lower end of the rotating shaft (2) and fixedly connected to the rotating shaft (2) with several oil injection ports (10) and several It is composed of an oil delivery pipe (12) with the same number as the oil injection port (10) and connects the oil injection housing (11) with the oil supply system, and the oil injection housing (11) is located at the oil injection port (10) with a fixed connection with it And the oil injection interface (13) that is matched and connected with the oil delivery pipe (12), the inner peripheral wall of the oil injection housing (11) at the upper and lower ends is provided with a plurality of radially inward protrusions for Sealing unit one (14) for enhancing the sealing performance, the inner peripheral wall of the oil filling housing (11) located between the two sealing units one (14) is provided with a plurality of radially inward protrusions for enhancing the sealing performance The second sealing unit (15) of the two sealing units (14), the second sealing unit (15) and the rotating shaft (2) form two oil storage chambers (16) for filling oil, several The oil injection ports (10) are all arranged on the outer peripheral wall of the oil storage cavity (16) in the oil injection housing (11), and the upper end surface of the rotating shaft (2) is provided with several vertically arranged and along the rotating shaft. (2) The oil passage (17) arranged in the circumferential direction, the oil passage (17) extends to the corresponding oil storage cavity (16), and the number of the oil passage (17) is the same as the number of the installation pockets (5) A radial flow channel (18) is provided between the oil passage (17) on the rotating shaft (2) and the corresponding oil storage cavity (16).
The inner support type rim rolling machine according to claim 1, wherein a reinforced seal is provided between two adjacent protrusions in the first sealing unit (14) and the second sealing unit (15). Sexual sealing ring (19).
The inner support type rim rolling machine according to claim 1, wherein both ends of the oil injection housing (11) are provided with axially inwardly recessed grooves (20), so The oil filling housing (11) is located in the corresponding groove (20) and is provided with a sealing gasket (21) which strengthens the sealing performance and is arranged in a ring shape.
The inner support type rim rolling machine according to claim 1, characterized in that the said rotating shaft (2) is provided with a sealing plug for sealing the oil passage (17) at the opening of the oil passage (17). A sealing cover (23) is arranged between the head (22), the rotating shaft (2) and the corresponding sealing plug (22).
The inner support type rim rolling machine according to claim 1, characterized in that, a radial oil passage (24) is respectively provided between the oil passage (17) and the corresponding installation pocket (5) , The radial oil passage (24) is provided with a piston, when the inner mold (4) is in the original position, the back of the inner mold (4) abuts against the outlet of the radial oil passage (24), and the inner mold (4) leans against The piston and the hydraulic oil in the oil passage (17) are driven to move radially.
The inner support type rim rolling machine according to claim 1, characterized in that, on the outer peripheral wall of the upper and lower ends of the rotating shaft (2), more than one is horizontally arranged for resetting the inner mold (4). ) The return spring in the original position, the return spring is in the shape of a ring, which is looped around the periphery of the rotating shaft (2) and encloses the inner mold (4).