Suspension device for hydraulic motor of injection molding machine

Abstract

The utility model relates to the field of hoisting equipment, and discloses a suspension device for a hydraulic motor of an injection molding machine, which comprises a base and a mounting ring fixed on the base and used for fixing a hoisting rope, suspension rings are evenly arranged on the base in the circumferential direction of the base at intervals, the suspension rings can be synchronously close to the center of the base and arranged on the protruding portion of the hydraulic motor in a sleeving mode or synchronously get away from and break away from the protruding portion of the hydraulic motor, and synchronous approaching or leaving of the suspension rings is controlled by a driving assembly arranged on the base. And the hydraulic motor is quickly grabbed or loosened, so that the hoisting efficiency can be obviously improved.

Description

Technical Field

[0001] The utility model relates to the field of hoisting equipment, in particular to a suspension device for a hydraulic motor of an injection molding machine. Background Art

[0002] The external five-star hydraulic motor is an important power component of the injection molding machine. Its radius is between 300mm and 400mm. It is heavy and needs to be hoisted by a crane during transportation. Figure 1 As shown, the outer shell of the external five-pointed star hydraulic motor includes a cylindrical main body and five groups of protrusions evenly spaced around the outer circumference of the main body, so that the whole is in the shape of a five-pointed star.

[0003] The conventional suspension method is rope suspension, which is to use at least two ropes to cover the raised part and suspend it by the operator to maintain balance. When the number of ropes is less than five, it is difficult to keep the center of the hydraulic motor in a stable state by manual binding. The hydraulic motor is large in size and mass. Once it tilts, there is a risk of falling, causing damage to the hydraulic motor and accompanying safety hazards to personnel. If five ropes are used, the ropes are prone to entanglement, and the binding is cumbersome and the disassembly is slow, resulting in low lifting efficiency. Utility Model Content

[0004] The utility model aims at solving the problem that the existing hydraulic motor of an injection molding machine is suspended by tying with a sling, which has the disadvantages of low efficiency and the risk of falling due to the unstable center of gravity of the tying. A suspension device is provided, which can quickly and stably realize the lifting of the hydraulic motor of an injection molding machine.

[0005] In order to solve the above technical problems, the utility model is solved by the following technical solutions:

[0006] A suspension device for a hydraulic motor of an injection molding machine comprises a base and a mounting ring fixed on the base and used to fix a suspension rope. Suspension rings are evenly spaced around the circumference of the base and can synchronously move toward the center of the base and be mounted on a raised portion of the hydraulic motor or move away from and detach from the raised portion of the hydraulic motor. The synchronous approach or distance of the suspension rings is controlled by a driving assembly arranged on the base.

[0007] By adopting the above scheme, the suspension ring is driven by the driving assembly to move closer synchronously, so that multiple raised parts of the hydraulic motor can be suspended at the same time, the hydraulic motor is limited to be circumferentially and axially separated from the suspension ring, and the hydraulic motor can be quickly grabbed or loosened, which can significantly improve the lifting efficiency.

[0008] Preferably, the driving assembly includes a movable seat that can move closer to or farther from the base, a linkage assembly that enables the suspension ring to move closer to or farther from the center of the base as the movable seat moves closer to or farther from the base, and a driving component that drives the movable seat closer to or farther from the base.

[0009] Preferably, the linkage assembly includes a suspension main arm hinged on the base, and the end of the suspension main arm away from the base is fixedly connected to the upper end surface of the suspension ring. A linkage arm with both ends hinged to the two is arranged between the movable seat and the suspension main arm. As the movable seat approaches the base, the suspension main arm closes and the suspension ring approaches synchronously; as the movable seat moves away from the base, the suspension main arm opens and the suspension ring moves away synchronously.

[0010] By adopting the above scheme, under the action of the linkage arm, as the movable seat moves away from the base, the main suspension arm is closed; and as the movable seat approaches the base, the main suspension arm is opened.

[0011] Preferably, the suspension main arm consists of two arms, one long and one short, at an obtuse angle. The suspension ring is fixed to the long arm and a hinge block is protruding at the corner of the arm. The end of the linkage arm away from the movable seat is hingedly engaged with the hinge block.

[0012] By adopting the above scheme, the main arm of the suspension is composed of sub-arms distributed at obtuse angles, which can shorten the setting length of the linkage arm, reduce the deployment angle of the main arm of the suspension within a reasonable range, reduce the material used, shorten the movement stroke, and improve the movement efficiency.

[0013] Preferably, the driving component is a driving cylinder, which includes a cylinder body and a piston rod. The cylinder body is fixed to a side of the base away from the movable seat, and the piston rod passes through the base and is fixedly connected to the movable seat.

[0014] Preferably, the movable seat is detachably connected to the end of the piston rod via a detachable structure.

[0015] Preferably, the detachable structure includes a locking bolt, a threaded hole arranged at the end of the piston rod away from the cylinder body, and a through hole arranged at the center of the movable seat, and the locking bolt is tightly matched with the threaded hole after passing through the through hole.

[0016] By adopting the above solution, the movable seat and the end of the piston rod can be quickly replaced by the locking bolt, which is convenient for disassembly and assembly of the driving cylinder.

[0017] The utility model adopts the above technical scheme, and has remarkable technical effects: the suspension ring is driven by the driving motor to drive the movable seat to approach or move away from the base, and when the movable seat approaches the base, it drives the suspension main arm to close, and the suspension ring synchronously approaches and clamps the raised part of the hydraulic motor; when the movable seat moves away from the base, it drives the suspension main arm to open, and the suspension ring synchronously moves away from and detaches from the raised part of the hydraulic motor. The suspension device can quickly and stably grasp or loosen the hydraulic motor, and significantly improve the lifting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is an axonometric view of an existing hydraulic motor for an injection molding machine;

[0019] Figure 2It is an axonometric view of a suspension device for a hydraulic motor of an injection molding machine according to this embodiment.

[0020] The names of the parts indicated by the numerical labels in the above drawings are as follows: 1. Main body; 2. Raised part; 3. Base; 4. Movable seat; 5. Locking bolt; 6. Suspension main arm; 7. Linkage arm; 8. Articulated block; 9. Driving motor; 901. Cylinder body; 902. Piston rod; 10. Suspension ring; 11. Mounting ring. DETAILED DESCRIPTION

[0021] The utility model is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0022] Example

[0023] A suspension device for a hydraulic motor of an injection molding machine, referring to Figure 1-Figure 2 As shown, it includes a base 3, a driving motor 9 and a movable seat 4. The driving motor 9 includes a cylinder 901 whose two ends are respectively fixed to the base 3 and the suspension rope, and a piston rod 902 that is telescopic on the cylinder 901. A mounting ring 11 for fixing the suspension rope is fixed on the cylinder 901. A threaded hole is provided at the end of the piston rod 902, and a through hole is provided at the center of the movable seat 4. The movable seat 4 is fixed to the end of the piston rod 902 by the locking bolt 5 passing through the through hole and cooperating with the threaded hole. On the base 3, there are evenly spaced suspension rings 10 around the circumference of the base 3, which can synchronously approach the center of the base 3 and be mounted on the raised part 2 of the hydraulic motor or synchronously move away from and detach from the raised part 2 of the hydraulic motor. The synchronous approach or distance of the suspension ring 10 is controlled by the driving assembly provided on the base 3. In this embodiment, five raised parts 2 are evenly spaced and convexly provided on the outer circumference of the outer five-star hydraulic motor, so five suspension rings are provided.

[0024] A suspension main arm 6 is fixed to the upper end of the suspension ring 10, and one end of the suspension main arm 6 away from the suspension ring 10 is hinged to the base 3. The suspension main arm 6 is composed of two arms, one long and one short, which are at an obtuse angle. The short arm is hinged to the base 3, and a hinge block 8 is protruding at the corner of the two arms. A linkage arm 7 with both ends hinged to the two is arranged between the movable seat 4 and the hinge block 8. As the piston rod 902 is extended and retracted, the movable seat 4 moves away from or approaches the base 3. When the movable seat 4 moves away from the base 3, the suspension main arm 6 opens synchronously, and the suspension ring 10 simultaneously detaches from the protruding portion 2; when the movable seat 4 approaches the base 3, the suspension main arm 6 closes synchronously, and the suspension ring 10 is simultaneously sleeved and pressed onto the protruding portion 2.

[0025] When it is necessary to suspend the hydraulic motor, first make the suspension main arm 6 of the suspension device in an open state, then cover the suspension device around the hydraulic motor, manually adjust the position of the suspension ring 10 so that the five suspension rings 10 are respectively aligned with the five raised parts 2 of the hydraulic motor, and then switch the electromagnetic air control valve of the driving cylinder 9 to drive the piston rod 902 of the driving cylinder 9 to switch from the telescopic state to the retracted state, and the five suspension main arms 6 are simultaneously retracted inward, and the suspension rings 10 are simultaneously sleeved on the raised parts 2 and maintained in a clamped state; when it is necessary to release the hydraulic motor, switch the electromagnetic air control valve of the driving cylinder 9 again to drive the piston rod 902 of the driving cylinder 9 to switch from the retracted state to the extended state, and the five suspension main arms 6 are simultaneously opened outward, and the suspension rings 10 are simultaneously detached from the raised parts 2.

[0026] In addition, when assembling the hydraulic motor and the mounting shaft, the suspension device can also be used to improve the convenience of assembly. The specific operation is as follows: first use the suspension device to lift the hydraulic motor. After the hydraulic motor is aligned with the mounting shaft, the suspension rope above the suspension device has flexible characteristics and can be twisted a number of times under the action of external force. The operator can achieve rotational pre-installation of the hydraulic motor and the mounting shaft by rotating the suspension device. After removing the suspension device, continue to tighten the two to complete the assembly of the hydraulic motor and the mounting shaft, saving time and effort.

[0027] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A suspension device for a hydraulic motor of an injection molding machine, comprising a base (3) and a mounting ring (11) fixed on the base (3) and used to fix a suspension rope, characterized in that: Suspension rings (10) are evenly spaced around the circumference of the base (3) and can synchronously move toward the center of the base (3) and be mounted on the raised portion (2) of the hydraulic motor, or synchronously move away from and detach from the raised portion (2) of the hydraulic motor. The synchronous approach or distance of the suspension rings (10) is controlled by a driving component arranged on the base (3).

2. The suspension device for a hydraulic motor of an injection molding machine according to claim 1, characterized in that: The driving component comprises a movable seat (4) that can approach or move away from a base (3), a linkage component that enables a suspension ring (10) to synchronously approach or move away from the center of the base (3) as the movable seat (4) approaches or moves away from the base (3), and a driving component that drives the movable seat (4) to approach or move away from the base (3).

3. A suspension device for a hydraulic motor of an injection molding machine according to claim 2, characterized in that: The linkage assembly comprises a suspension main arm (6) hinged on a base (3); one end of the suspension main arm (6) away from the base (3) is fixedly connected to the upper end surface of a suspension ring (10); a linkage arm (7) is arranged between the movable seat (4) and the suspension main arm (6) with both ends hinged to the two; as the movable seat (4) approaches the base (3), the suspension main arm (6) closes and the suspension ring (10) approaches synchronously; as the movable seat (4) moves away from the base (3), the suspension main arm (6) opens and the suspension ring (10) moves away synchronously.

4. A suspension device for a hydraulic motor of an injection molding machine according to claim 3, characterized in that: The suspension main arm (6) is composed of two sub-arms, one long and one short, which are at an obtuse angle. The suspension ring (10) is fixed on the long sub-arm and a hinge block (8) is protruding at the corner of the sub-arm. The end of the linkage arm (7) away from the movable seat (4) is hingedly matched with the hinge block (8).

5. The suspension device for a hydraulic motor of an injection molding machine according to claim 2, characterized in that: The driving component is a driving cylinder (9), which comprises a cylinder body (901) and a piston rod (902). The cylinder body (901) is fixed to a side of the base (3) away from the movable seat (4), and the piston rod (902) passes through the base (3) and is fixedly connected to the movable seat (4).

6. A suspension device for a hydraulic motor of an injection molding machine according to claim 5, characterized in that: The movable seat (4) is detachably connected to the end of the piston rod (902) via a detachable structure.

7. A suspension device for a hydraulic motor of an injection molding machine according to claim 6, characterized in that: The detachable structure comprises a locking bolt (5), a threaded hole arranged at one end of the piston rod (902) away from the cylinder body (901), and a through hole arranged at the center of the movable seat (4); the locking bolt (5) passes through the through hole and is tightly matched with the threaded hole.

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