Mechanical tipping mechanism of radial forging machine main machine

Abstract

The invention discloses a mechanical tipping mechanism of a radial forging machine main machine. The mechanical tipping mechanism comprises a connecting block, a pin shaft, a trapezoidal lead screw, a double worm and gear reduction gearbox, a base connecting shaft and a motor. The double worm and gear reduction gearbox comprises a box body and a transmission mechanism which is arranged in the box body and composed of a first-stage worm, a first-stage worm gear, a second-stage worm and a second-stage worm gear, and the second-stage worm gear is connected with a lead screw nut through an adjusting sleeve. According to the mechanism, the motor drives the double worm and gear reduction gearbox to drive the lead screw nut to rotate, then the trapezoidal lead screw is driven to move axially, and the pin shaft pushes the connecting block to achieve tipping and resetting of the main machine. A mechanical transmission mode is adopted, the turning mechanism has the advantages of being large in output torque, stable in operation and compact in structure, operation safety is guaranteed through the reverse self-locking characteristic of worm and gear transmission, and the technical problem that a main machine box of the large radial forging machine is difficult to tip over is effectively solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of metal forging equipment, in particular to a mechanical tilting mechanism of a radial forging machine host. BACKGROUND

[0002] The radial forging machine is a high-precision and high-efficiency forging equipment. The host box of the radial forging machine often needs to be turned from a vertical working state to a horizontal state during installation, debugging and maintenance. For small and medium-sized host boxes, manual assistance or simple hydraulic mechanisms can be used to realize the turning of the host box. However, the host box of a large radial forging machine is large in size and extremely heavy in weight. Manual turning of the host box is risky and difficult. If a hydraulic tilting mechanism is used, the required cylinder stroke is long, the system pressure is high, the manufacturing cost is high, and there is a potential risk of leakage, which is not suitable in terms of economy and safety.

[0003] Therefore, there is an urgent need for a mechanical tilting mechanism that is specially used for large radial forging machines, has high reliability, large torque output and can be self-locked. SUMMARY

[0004] The purpose of the present application is to provide a mechanical tilting mechanism of a radial forging machine host. The mechanism is driven by a motor and realizes the stable tilting and resetting of the host through mechanical transmission. The mechanism has the advantages of compact structure, stable transmission and reversible self-locking, thereby solving the problems presented in the background technology.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solution: a mechanical tilting mechanism of a radial forging machine host, comprising a double worm gear reducer box; the double worm gear reducer box comprises a box body, and a transmission mechanism is arranged in the box body; a motor is installed on the box body, and the output end of the motor is connected with the input end of the transmission mechanism; a screw nut is connected with the output end of the transmission mechanism and is threadedly connected to a trapezoidal screw; One end of the trapezoidal screw is hingedly connected with a connecting block through a pin shaft; and the box body of the double worm gear reducer box is hingedly connected to an external base through a base connecting shaft.

[0006] Preferably, the transmission mechanism comprises a first-stage worm, a first-stage worm gear, a second-stage worm and a second-stage worm gear; the output end of the motor is connected with the first-stage worm through a shaft coupling; the first-stage worm is engaged with the first-stage worm gear; the first-stage worm gear is coaxially arranged with the second-stage worm and is connected with the second-stage worm; the second-stage worm is engaged with the second-stage worm gear; and the second-stage worm gear is coaxially fixed with the screw nut. The power of the motor is transmitted to the first-stage worm through the shaft coupling, and the torque is output by the second-stage worm after two-stage speed reduction and torque increase.

[0007] Preferably, the second-stage worm gear is fixedly installed on the outer periphery of an adjusting sleeve, and the screw nut is fixedly installed in the inner hole of the adjusting sleeve, so that the second-stage worm gear and the screw nut are synchronously rotated through the adjusting sleeve.

[0008] Preferably, the connecting block is used for fixed connection with the bottom of the radial forging machine main machine.

[0009] Preferably, the motor is a forward and reverse motor, and the tilting and resetting of the main machine can be realized by changing the rotation direction of the motor.

[0010] The double worm gear reducer constitutes the core transmission component of the mechanism, and the transmission mechanism is accommodated in the double worm gear reducer. The motor is installed on the box body of the double worm gear reducer, and the output power is transmitted to the transmission mechanism. The final output member of the transmission mechanism is a screw nut, which forms a screw pair with a trapezoidal screw.

[0011] One end of the trapezoidal screw is hingedly connected to the connecting block through a pin shaft, and the connecting block is used for fixed connection to the bottom of the radial forging machine main machine.

[0012] The box body of the double worm gear reducer is hingedly connected to the externally fixed base through a base connecting shaft, so that the whole tilting mechanism can swing relative to the base.

[0013] The working process of the present application is as follows: When working, the motor is started to drive the transmission mechanism in the double worm gear reducer, and finally drives the screw nut to rotate. Since the trapezoidal screw can only move axially due to the gravity of the main machine and the constraint of the mechanism, the rotating screw nut will drive the trapezoidal screw to do linear extension and contraction motion, thereby pushing or pulling the connecting block through the pin shaft, to realize the tilting or resetting action of the main machine. The double worm gear transmission increases the reduction ratio and output torque, and its inherent reverse self-locking feature ensures the safety and stability during tilting and stopping at any position.

[0014] The beneficial effects of the present application are as follows: (1) The present application adopts mechanical transmission with large reduction ratio to provide sufficient torque to drive the heavy main machine box, overcoming the limitations of manpower and conventional hydraulic mechanisms.

[0015] (2) The worm gear transmission in the present application is stable and low noise, and has a reverse self-locking function, which can lock the position even in the case of power failure, and has high safety.

[0016] (3) The present application adopts vertical staggered shaft transmission, and the overall structure layout is reasonable, saving installation space.

[0017] (4) The present application is simple to operate, and only needs to control the forward and reverse rotation of the motor to complete all operations, and has high automation degree. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is the overall structure schematic diagram of the tilting mechanism of the present application; Figure 2 is the installation position schematic diagram of the present application on the radial forging machine; Figure 3 This is a cross-sectional structural diagram of the dual worm gear reducer of the present invention; Figure 4 for Figure 3 Sectional view along axis AA; Figure 5 Another perspective schematic diagram of a dual worm gear reducer; In the diagram: 1-Connecting block; 2-Pin shaft; 3-Trapezoidal lead screw; 4-Double worm gear reducer; 5-Base connecting shaft; 6-Motor; 401-Lead screw nut; 402-Adjusting sleeve; 403-Second stage worm gear; 404-Second stage worm; 405-Box body; 406-First stage worm; 407-First stage worm gear; 408-Coupling. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings.

[0020] like Figure 1 and Figure 2 As shown, in this embodiment, the tilting mechanism is hinged to the base of the forging machine via the base connecting shaft 5. The connecting block 1 is fixed to the center of the bottom of the main unit housing by bolts. The connecting block 1 is hinged to one end of the trapezoidal lead screw 3 via the pin 2.

[0021] like Figure 1 , Figure 3 , Figure 4 As shown, the double worm gear reducer 4 is the core transmission unit. The motor 6 is mounted on the housing 405, and its output shaft is connected to the first-stage worm 406 inside the housing via a coupling 408. The first-stage worm 406 drives the first-stage worm wheel 407, which meshes with it, to rotate. The first-stage worm wheel 407 is coaxially fixed with the second-stage worm 404, thus transmitting power to the second-stage worm 404. The second-stage worm 404 then drives the second-stage worm wheel 403, which meshes with it, to rotate.

[0022] The second-stage worm gear 403 is fixedly installed on the outside of the adjusting sleeve 402. The lead screw nut 401 is fixedly installed in the internal hole of the adjusting sleeve 402, so that the rotation of the second-stage worm gear 403 can directly drive the lead screw nut 401 to rotate synchronously.

[0023] During operation, the motor 6 is started (forward or reverse rotation), and the power is transmitted to the lead screw nut 401 after being reduced in speed by a two-stage worm gear, causing it to rotate. The rotating lead screw nut 401 drives the mating trapezoidal lead screw 3 to perform axial linear motion (extend or retract). The trapezoidal lead screw 3 pushes or pulls the connecting block 1 through the pin 2, thereby forcing the main unit to tilt or reset around its own support point. Due to the self-locking characteristic of the worm gear transmission, the mechanism can safely stop at any intermediate position.

[0024] The above are only the preferred examples of the present application. It should be noted that for those skilled in the art, other equivalent modifications and improvements can also be made as the common knowledge in the art under the technical inspiration provided by the present application, and should also be considered as the protection scope of the present application.

Claims

1. A mechanical tilting mechanism of a main machine of a radial forging machine, characterized by, Including double worm gear reducer box (4);The double worm gear reducer box (4) includes box body (405), transmission mechanism is equipped in box body (405);Box body (405) is installed with motor (6), and the output end of motor (6) is connected with the input end of transmission mechanism;The output end of transmission mechanism is connected with screw nut (401), and screw nut (401) is set and is connected in trapezoidal screw (3) on screw thread; One end of the trapezoidal screw (3) is hinged with the connecting block (1) through the pin shaft (2); The box body (405) of the double worm gear reducer box (4) is hinged on the external base through the base connecting shaft (5).

2. A mechanical tilting mechanism of a main machine of a radial forging machine according to claim 1, characterized in that: The transmission mechanism includes first stage worm (406), first stage worm wheel (407), second stage worm (404) and second stage worm wheel (403); The output end of the motor (6) is connected with the first stage worm (406) through the shaft coupling (408); The first stage worm (406) is engaged with the first stage worm wheel (407); The first stage worm wheel (407) is coaxially arranged with the second stage worm (404) and is connected in linkage; The second stage worm (404) is engaged with the second stage worm wheel (403); The second stage worm wheel (403) is coaxially fixed with the screw nut (401).

3. A mechanical tilting mechanism of a main machine of a radial forging machine according to claim 1 or 2, characterized in that: The second stage worm wheel (403) is fixedly installed on the outer periphery of the adjusting sleeve (402), and the screw nut (401) is fixedly installed in the inner hole of the adjusting sleeve (402), so that the synchronous rotation of the second stage worm wheel (403) and the screw nut (401) is realized through the adjusting sleeve (402).

4. A mechanical tilting mechanism of a main machine of a radial forging machine according to claim 3, characterized in that: The connecting block (1) is used for fixed connection with the bottom of the radial forging machine main machine.

5. A mechanical tilting mechanism of a main machine of a radial forging machine according to claim 4, characterized in that: The motor (6) is a forward and reverse motor.

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