Space-saving balancing machine belt drive structure

Abstract

The application discloses a space-saving balanced machine belt driving structure. A rotor is arranged above a driving base plate, a mounting panel is arranged on the upper portion of the driving base plate, two driving arms are symmetrically arranged on the mounting panel, a motor assembly and a cylinder assembly are arranged on the bottom of the driving base plate, a wheel assembly comprises wheels, the wheels of the wheel assembly are arranged on the driving arms, the motor assembly and the mounting panel respectively, the cylinder assembly is connected with the driving arms and the motor assembly respectively, the driving arms and the wheel assembly are driven to fold and unfold by the motor assembly and the cylinder assembly, and the rotor above the driving base plate is driven to rotate. The driving arms are moved to the working bottom surface of the balanced machine when the driving device is not needed to drive, the space around the workpiece rotor is saved, the automatic feeding and discharging functions of the mechanical hand are more facilitated, the automatic processing of the balanced machine industry is more suitable, the wrap angle of the belt and the workpiece rotor is greatly improved, and the time cost of the balanced rotor is reduced.

Description

TECHNICAL FIELD

[0001] The application relates to a clamping structure of a rotor, in particular to a space-saving balancing machine belt driving structure. BACKGROUND

[0002] The existing balancing machine driving modes are generally upper pressing type and lower setting type. The upper pressing type driving mode refers to a mode of driving a to-be-tested rotor by using external force to wrap the belt around the to-be-tested rotor from above or obliquely above the to-be-tested rotor and driving the to-be-tested rotor by using friction force. The lower setting type driving mode refers to a mode of driving the to-be-tested rotor by using the weight of the to-be-tested rotor to deform a lower-set belt and driving the to-be-tested rotor by using friction force.

[0003] In the field of balancing machines at present, a robot is often required to automatically feed and discharge. The upper pressing type driving mode occupies most of the space above the to-be-tested rotor, and therefore the robot is extremely inconvenient in the feeding and discharging process. With the development of the times, the types of rotors in the field of balancing machines are more and more various, and the lower setting type driving mode relies on the weight of the to-be-tested rotor to deform the belt to drive the rotor, and therefore is not suitable for some rotors with relatively light weight.

[0004] After searching the prior art, the utility model balancing machine driving device with the authorization publication number CN211553181U is disclosed. The device includes a driving plate, a balancing ring belt driving device and a driving plate control system. The device uses the ring belts on both sides to wrap the to-be-tested rotor to realize driving, and simultaneously uses the driving plate control system to control the two driving plates to move away from the to-be-tested rotor, so that there is no interference around the to-be-tested rotor to realize the feeding and discharging process of the mechanical hand. However, since the height space between the two driving plates and the to-be-tested rotor does not change, when the mechanical hand is required to feed and discharge, the to-be-tested rotor needs to be lifted to a space without any interference around or a mechanical hand with very small structure and high flexibility. The space utilization rate is small, and the cost of the mechanical hand is high. SUMMARY

[0005] In order to solve the problems in the background art, the application provides a space-saving balancing machine belt driving structure.

[0006] The application solves the conflict between the balancing machine driving device and the feeding and discharging mechanical hand structure, increases the space utilization rate around the to-be-tested rotor of the balancing machine, and is more convenient for the mechanical hand to automatically feed and discharge. Meanwhile, the wrap angle of the belt and the to-be-tested rotor is larger than the wrap angle of the belt and the to-be-tested rotor of the traditional balancing machine, the friction force between the to-be-tested rotor and the belt is larger, and the speed is faster.

[0007] The technical scheme adopted by the application is as follows:

[0008] The application comprises a driving base plate, a wheel assembly, two driving arms, a motor assembly and a cylinder assembly; a rotor is arranged above the driving base plate, an installation panel is installed on the upper part of the driving base plate, the two driving arms are symmetrically installed on the installation panel respectively, the motor assembly and the cylinder assembly are both installed on the bottom of the driving base plate; the wheel assembly comprises a plurality of wheels, the plurality of wheels are connected through a belt transmission, a part of the wheels of the wheel assembly are installed on the driving arms, a part of the wheels are installed on the motor assembly, and the other part of the wheels are installed on the installation panel; the cylinder assembly is connected with the driving arms and the motor assembly respectively; the driving arms and the wheel assembly are driven to fold and unfold through the motor assembly and the cylinder assembly, and then the rotor above the driving base plate is driven to rotate.

[0009] The wheel assembly mainly comprises a driving driving wheel, seven driving driven wheels and a belt; the driving driving wheel is installed on the motor output shaft of the motor assembly, three driving driven wheels are arranged on the installation panel in the form of being respectively located at the angles of an isosceles triangle, the two driving arm roots are symmetrically hinged to the two sides of the installation panel respectively, a driving driven wheel is installed on the middle part and the end of each driving arm, the belt is wound on the driving driving wheel, and the belt is wound on the driving driven wheels at the bottom angle of the isosceles triangle on the installation panel, the driving driven wheel at the middle part of the driving arm, the driving driven wheel at the end of the driving arm, the driving driven wheel at the top angle of the isosceles triangle on the installation panel, the driving driven wheel at the end of the other driving arm, the driving driven wheel at the middle part of the other driving arm and the driving driven wheel at the other bottom angle of the isosceles triangle on the installation panel in sequence in the form of S-shaped winding, and then the belt is wound back to the driving driving wheel.

[0010] The installation panel is symmetrically provided with wheel shafts on the two sides, the two driving arms are symmetrically connected to the wheel shafts on the two sides of the installation panel, each wheel shaft comprises a gear at the upper part and a hinge shaft at the lower part, and the middle part and the root of each driving arm are connected to the gear and the hinge shaft of the wheel shaft through a connecting rod respectively.

[0011] When the driving arms and the wheel assembly are unfolded, the two driving arms extend to the two sides and above the rotor, and the belt of the wheel assembly surrounds the two sides of the rotor;

[0012] When the driving arms and the wheel assembly are folded, the two driving arms are lowered below the rotor, and the belt of the wheel assembly is also folded below the rotor and is no longer near the rotor.

[0013] The driving arm is provided with a guide hole, and the guide hole is used for being hinged to the piston rod of the second cylinder.

[0014] The driving base plate is provided with a driving mounting seat, and the driving mounting seat is used for fixing the driving base plate on the balance machine working bottom plate through bolts.

[0015] A motor mounting plate is slidably mounted on the drive base plate via a guide rail slider assembly. A motor is mounted on the motor mounting plate, and the motor output shaft is synchronously connected to the drive drive wheel. A second motor drive frame and a first motor drive frame are respectively mounted on the upper and lower sides of the motor mounting plate. An upper buffer device and a lower buffer device are respectively mounted on the upper and lower sides of the motor mounting plate. Two first cylinders are mounted on the drive base plates on the left and right sides of the motor mounting plate. The piston rods of the two first cylinders are fixedly connected to the first motor drive frames with their piston rods pointing downwards. The first cylinders drive the motor mounting plate to move up and down along the guide rail slider assembly, thereby moving it closer to or away from the mounting panel.

[0016] A belt limiter is installed on the motor mounting plate next to the drive wheel to limit the belt that passes through the drive wheel.

[0017] A second cylinder is mounted on the side of the drive base plate, and the piston rod of the second cylinder is hinged to the middle of one of the drive arms with the piston rod facing upward.

[0018] The beneficial effects of this invention are:

[0019] This invention saves space around the workpiece rotor by moving the drive arm below the working surface of the balancing machine when the drive device is not needed. This makes it easier to realize the automatic loading and unloading function of the robotic arm and is more suitable for automated processing in the balancing machine industry.

[0020] This invention designs a driving method that significantly increases the wrap angle between the belt and the workpiece rotor, enabling the rotor to accelerate faster and making it more suitable for rotors that require high-speed rotation for balancing, while also reducing the time cost of balancing the rotor. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the driver for this invention;

[0022] Figure 2 This is a schematic diagram of a bottom-mounted driver;

[0023] Figure 3 This is an initial schematic diagram of the driver for this invention;

[0024] Figure 4 This is one of the schematic diagrams of the installation of the tensioning mechanism of the present invention;

[0025] Figure 5 This is the second schematic diagram of the installation of the tensioning mechanism of the present invention;

[0026] Figure 6 This is one of the schematic diagrams of the drive arm of the present invention.

[0027] Figure 7 This is the second schematic diagram of the drive arm of the present invention.

[0028] In the picture:

[0029] A0 drives the drive pulley, while A1, A2, A3, A4, A5, A6, and A7 drive the driven pulleys and belt A8.

[0030] B0 and B1 drive arms;

[0031] C0 driver substrate, C1 and C2 driver mounting bases;

[0032] D0 Motor mounting plate, D1 Belt limit block, D2 Guide rail slider assembly, D3 Lower buffer device, D4 ​​First motor drive frame, D5 Second motor drive frame, D6 Upper buffer device.

[0033] E0 is the second cylinder, E1 is the first cylinder, E2 is the second cylinder mounting bracket, and E3 and E4 are the first cylinder mounting brackets.

[0034] F3 is the guide hole, F4 is the connecting rod, F5 is the connecting rod, F6 is the connecting rod, F7 is the connecting rod, F8 (F9) is the gear, F10 is the mounting plate, and F11 is the bolt.

[0035] Z0 rotor. Detailed Implementation

[0036] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0037] like Figure 1 and Figure 3 As shown, the structure includes a drive base plate C0, a wheel assembly, two drive arms, a motor assembly, and a cylinder assembly. The rotor Z0 is positioned above the drive base plate C0. A mounting panel F10 is mounted on the upper part of the drive base plate C0. The two drive arms are symmetrically mounted on the mounting panel F10. The motor assembly and the cylinder assembly are both mounted on the bottom of the drive base plate C0. The wheel assembly includes multiple wheels connected by belt drive. Some wheels of the wheel assembly are mounted on the drive arms, some wheels are mounted on the motor assembly, and some wheels are mounted on the mounting panel F10. The cylinder assembly is connected to the drive arms and the motor assembly respectively. The motor assembly and the cylinder assembly drive the drive arms and the wheel assembly to retract and expand, thereby driving the rotor Z0 on the drive base plate C0 to rotate.

[0038] like Figure 1 The diagram shown is a schematic of the drive mechanism of the present invention. The wheel assembly mainly consists of a drive wheel A0, seven driven wheels A1 to A7, and a belt A8. The belt routing is as follows: Figure 1 As shown;

[0039] The drive pulley A0 is mounted on the motor output shaft of the motor assembly. Three driven pulleys A1, A6, and A7 are mounted on the mounting panel F10 in an isosceles triangle arrangement. The roots of the two drive arms B0 / B1 are symmetrically hinged to both sides of the mounting panel F10. Each drive arm B0 / B1 has a driven pulley A2, A3, A4, and A5 mounted in the middle and at the end. Belt A8 is wound around the drive pulley A0, with one end of belt A8 wound in an S-shape. After passing through the drive driven wheel A1 at one base angle of the isosceles triangle on the mounting panel F10, the drive driven wheel A2 at the middle of one drive arm B0, the drive driven wheel A3 at the end of one drive arm B0, the drive driven wheel A6 at the apex angle of the isosceles triangle on the mounting panel F10, the drive driven wheel A4 at the end of the other drive arm B0, the drive driven wheel A5 at the middle of the other drive arm B0, and the drive driven wheel A1 at the other base angle of the isosceles triangle on the mounting panel F10, the drive driven wheel returns to the drive driving wheel A0.

[0040] The movement steps of the drive arm device are as follows: the cylinder E0 transmits the motion to the drive arm B0, the drive arm B0 causes the gear F8 to move through the connecting rod F5, the gear F8 transmits the motion to the gear F9 through gear meshing, and the gear F9 transmits the motion to the drive arm B1 through the connecting rod F6, thereby realizing the synchronous movement of the drive arm B0 and the drive arm B1.

[0041] At work, such as Figure 1 As shown, Z0 is the workpiece rotor, located between the belts A8 of the two drive arms B0 and B1, and in close contact with and rubbing against the belts A8. By tensioning the belts A8, the belts wrap around the workpiece rotor, causing the rotor Z0 to rotate under the action of friction.

[0042] like Figure 6 and Figure 7 As shown, wheel axle components are symmetrically mounted on both sides of the mounting panel F10. The two drive arms B0 and B1 are symmetrically connected to the wheel axle components on both sides of the mounting panel F10. Each wheel axle component includes gears F8 and F9 located at the upper part and a hinge shaft located at the lower part. Gears F8 and F9 are mounted by bolts F11. The middle and root parts of each drive arm B0 and B1 are respectively connected to the gears F8 / F9 and the hinge shaft of the wheel axle component via their respective connecting rods. Two gears F8 and F9 are symmetrically mounted on the upper part of the mounting panel F10, and two hinge shafts are symmetrically mounted on the lower part of the mounting panel F10.

[0043] Specifically, the middle and root parts of drive arm B0 are connected by their respective connecting rods F6 and F7 and the gear F9 of the wheel axle component and the hinge shaft, respectively, and the middle and root parts of drive arm B1 are connected by their respective connecting rods F5 and F4 and the gear F8 of the wheel axle component and the hinge shaft, respectively.

[0044] The drive wheel on the mounting panel F10 is mounted on one side of the mounting panel F10, and the gear and hinge shaft are mounted on the other side of the mounting panel F10.

[0045] When the drive arms and wheel assembly are deployed, the two drive arms extend to both sides and above the rotor Z0, and the belt A8 of the wheel assembly wraps around both sides of the rotor Z0.

[0046] When the retraction of the drive arms and wheel assembly is not working, the two drive arms descend below the rotor Z0, and the belt A8 of the wheel assembly is also retracted below the rotor Z0, no longer near the rotor Z0.

[0047] Figure 2 It is a bottom-mounted drive structure in existing technology, compared to Figure 2 The advantage of using the bottom-mounted drive is that the wrap angle between the belt and the workpiece rotor is large, so the drive device of the present invention can make the rotor speed up faster and save measurement time.

[0048] like Figure 3 This is a schematic diagram of the initial driving state of the present invention. In this state, the belt is in a slack state. Figure 3 It can be seen that the left and right drive arms B0 / B1 are directly below the rotor Z0, and when the drive mechanism is in this state, the upper ends of the drive arms B0 / B1 are roughly level with the working base plate of the balancing machine to which they are attached, compared to Figure 2 For the fixed drive arm in the lower drive mechanism, the present invention saves space above the working plate of the balancing machine, which is more conducive to the automatic loading and unloading of materials by the robot.

[0049] The drive arm B0 / B1 has a guide hole F3, which is used for hinged connection of the piston rod of the second cylinder E0.

[0050] The drive base plate C0 is provided with drive mounting seats C1 and C2. The drive base plate C0 is connected to the drive mounting seat C1 by bolts. The drive mounting seats C1 and C2 are used to fix the drive base plate C0 to the working base plate of the balancing machine by bolts.

[0051] like Figure 4 and Figure 5 This is a schematic diagram of the installation of the tensioning mechanism of the present invention. The present invention mainly relies on the up and down sliding of the drive wheel to control the tension of the belt.

[0052] A motor mounting plate D0 is slidably mounted on the drive base plate C0 via a guide rail slider assembly D2. A motor is mounted on the motor mounting plate D0, and the motor output shaft is synchronously connected to the drive drive wheel A0. A second motor drive frame D5 and a first motor drive frame D4 are respectively mounted on the upper and lower sides of the motor mounting plate D0. An upper buffer device D6 and a lower buffer device D3 are respectively mounted on the upper and lower sides of the motor mounting plate D0, which serve as protective limit devices. Two first cylinders E1 are mounted on the drive base plate C0 on the left and right sides of the motor mounting plate D0. The piston rods of the two first cylinders E1 are fixedly connected to the first motor drive frame D4 with their piston rods pointing downwards. The first cylinders E1 drive the motor mounting plate D0 to move up and down along the guide rail slider assembly D2, thereby moving it closer to or away from the mounting panel F10.

[0053] The motor drive frame D4 is rigidly connected to the piston rod of the first cylinder E1. The specific implementation steps are as follows: the first cylinder E1 pushes the piston rod to move the motor drive frame D4 up and down, and the motor drive part moves up and down along the guide rail of the guide rail slider assembly D2 along with the slider of the motor drive frame D4 and the guide rail slider assembly D2.

[0054] The two first cylinders E1 drive the motor and its drive pulley A0 to move up and down, moving closer to or further away from the mounting panel F10, thereby controlling the tension of the belt A8:

[0055] When the two first cylinders E1 push the motor and its drive pulley A0 downwards as a whole, the first motor drive frame D4 contacts the lower buffer device D3, and the belt A8 is in a tensioned state.

[0056] When the two first cylinders E1 push the motor and its drive wheel A0 to move upward as a whole, the second motor drive frame D5 contacts the upper buffer device D6, and the belt is in a slack state.

[0057] A belt limiter D1 is installed on the motor mounting plate D0 next to the drive pulley A0 to limit the belt A8 that passes through the drive pulley A0. Its main function is to prevent the belt from coming off the drive pulley.

[0058] A second cylinder E0 is mounted on the side of the drive base plate C0. The piston rod of the second cylinder E0 is hinged to the middle of one of the drive arms B0 / B1, which controls the rotational movement of the drive arm.

[0059] In specific implementation, the second cylinder E0 is mounted on the drive base plate C0 through the second cylinder mounting seat E2, and the two first cylinders E1 are mounted on the drive base plate C0 through the first cylinder mounting seats E3 and E4 respectively.

Claims

1. A space-saving belt-driven structure for a balancing machine, characterized in that: The system includes a drive base plate (C0), a wheel assembly, two drive arms, a motor assembly, and a cylinder assembly. A rotor (Z0) is positioned above the drive base plate (C0). A mounting panel (F10) is mounted on the upper part of the drive base plate (C0). Two drive arms are symmetrically mounted on the mounting panel (F10). The motor assembly and cylinder assembly are mounted on the bottom of the drive base plate (C0). The wheel assembly contains multiple wheels connected by a belt drive. Some wheels are mounted on the drive arms, some on the motor assembly, and some on the mounting panel (F10). The cylinder assembly is connected to the drive arms and the motor assembly. The motor assembly and cylinder assembly drive the retraction and expansion of the drive arms and wheel assembly, thereby driving the rotor (Z0) above the drive base plate (C0) to rotate. The wheel assembly mainly consists of a drive wheel (A0), seven driven wheels (A1-A7), and a belt (A8). The drive wheel (A0) is mounted on the motor output shaft of the motor assembly. The three driven wheels (A1, A6, A7) are mounted on the mounting panel (F10) in an isosceles triangle arrangement. The roots of the two drive arms (B0 / B1) are symmetrically hinged to both sides of the mounting panel (F10). Each drive arm (B0 / B1) has a driven wheel (A2, A3, A4, A5) mounted in the middle and at the end. The belt (A8) is wound around the drive wheel (A0). One end of the belt (A8) is wound in an S-shape, passing sequentially through the drive driven wheel (A1) at one base angle of the isosceles triangle on the mounting panel (F10), the drive driven wheel (A2) at the middle of one drive arm (B0), the drive driven wheel (A3) at the end of one drive arm (B0), the drive driven wheel (A6) at the apex angle of the isosceles triangle on the mounting panel (F10), the drive driven wheel (A4) at the end of another drive arm (B0), the drive driven wheel (A5) at the middle of another drive arm (B0), and the drive driven wheel (A1) at the other base angle of the isosceles triangle on the mounting panel (F10), before returning to the drive driving wheel (A0).

2. The space-saving belt drive structure for a balancing machine according to claim 1, characterized in that: The mounting panel (F10) is symmetrically equipped with axle components on both sides. The two drive arms (B0, B1) are symmetrically connected to the axle components on both sides of the mounting panel (F10). Each axle component includes a gear (F8, F9) at the top and a hinge shaft at the bottom. The middle and root parts of each drive arm (B0, B1) are connected to the gear (F8 / F9) and the hinge shaft of the axle component via their respective connecting rods.

3. The space-saving belt drive structure for a balancing machine according to claim 2, characterized in that: When the drive arms and wheel assembly are deployed, the two drive arms extend to both sides and above the rotor (Z0), and the belt (A8) of the wheel assembly wraps around both sides of the rotor (Z0); When the retraction of the drive arms and wheel assembly is not working, the two drive arms descend below the rotor (Z0), and the belt (A8) of the wheel assembly is also retracted below the rotor (Z0) and is no longer near the rotor (Z0).

4. The space-saving belt drive structure for a balancing machine according to claim 1, characterized in that: The drive arm (B0 / B1) is provided with a guide hole (F3), which is used for hinged connection of the piston rod of the second cylinder (E0).

5. The space-saving belt drive structure for a balancing machine according to claim 1, characterized in that: The drive base plate (C0) is provided with drive mounting seats (C1, C2), which are used to fix the drive base plate (C0) to the working base plate of the balancing machine by bolts.

6. The space-saving belt drive structure for a balancing machine according to claim 1, characterized in that: A motor mounting plate (D0) is slidably mounted on the drive base plate (C0) via a guide rail slider assembly (D2). A motor is mounted on the motor mounting plate (D0), and the motor output shaft is synchronously connected to the drive drive wheel (A0). A second motor drive frame (D5) and a first motor drive frame (D4) are respectively mounted on the upper and lower sides of the motor mounting plate (D0). An upper buffer device (D6) and a lower buffer device (D3) are respectively mounted on the upper and lower sides of the motor mounting plate (D0). Two first cylinders (E1) are mounted on the drive base plate (C0) on the left and right sides of the motor mounting plate (D0). The piston rods of the two first cylinders (E1) are fixedly connected to the first motor drive frame (D4) with their piston rods pointing downwards. The first cylinders (E1) drive the motor mounting plate (D0) to move up and down along the guide rail slider assembly (D2), thereby moving closer to or away from the mounting panel (F10).

7. The space-saving belt drive structure for a balancing machine according to claim 6, characterized in that: A belt limiter (D1) is installed on the motor mounting plate (D0) next to the drive drive wheel (A0) to limit the belt (A8) that passes through the drive drive wheel (A0).

8. The space-saving belt drive structure for a balancing machine according to claim 6, characterized in that: A second cylinder (E0) is mounted on the side of the drive base plate (C0), and the piston rod of the second cylinder (E0) is hinged to the middle of one of the drive arms (B0 / B1) with the piston rod facing upward.

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