Double-screw auxiliary installation cart

Abstract

The utility model discloses a twin-screw auxiliary installation cart which comprises a cart frame, a lifting device, a limiting device, a fixing seat and a moving device, the bottom of the lifting device is fixedly connected with the cart frame, the lifting device can extend and contract in the vertical direction, the limiting device is used for limiting movement of the fixing seat in the horizontal direction, and the moving device is used for moving the fixing seat in the horizontal direction. The fixing base is connected with the top of the lifting device and used for bearing the double screws, and the moving device is arranged at the bottom of the frame. An operator pushes the frame to a preset position through the moving device, arranges the double screws on the fixing seat and controls the lifting device to extend or retract in the vertical direction until the double screws reach the preset position, and the limiting device limits movement of the fixing seat in the horizontal direction while the lifting device moves so as to achieve leveling of the double screws. The fixing base can avoid collision during installation of the double screws, the lifting device can achieve stable movement of the double screws, the limiting device can guarantee leveling of the double screws, and the installation efficiency of the screws is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical equipment installation, in particular to a double-screw auxiliary installation trolley. Background Art

[0002] In the prior art, for large-scale extruders or extruders with a large length-diameter ratio, in order to avoid bumps, bending and deformation during the installation of the screw, multiple specific toolings and overhead traveling cranes are required for hoisting to perform the installation smoothly. However, this installation method often has problems such as difficulty in leveling the screw and low installation efficiency.

[0003] Therefore, how to improve the installation efficiency of the screw is a technical problem that those skilled in the art need to solve at present. Summary of the Utility Model

[0004] In view of this, the purpose of the utility model is to provide a double-screw auxiliary installation trolley to improve the installation efficiency of the double screws of the extruder.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A double-screw auxiliary installation trolley includes a vehicle frame, a lifting device, a limiting device, a fixing seat and a moving device, wherein:

[0007] The bottom of the lifting device is fixedly connected to the vehicle frame, and the lifting device can extend and contract in the vertical direction;

[0008] The first end of the limiting device is connected to the fixing seat, and its second end is connected to the vehicle frame, and is used to limit the horizontal movement of the fixing seat;

[0009] The fixing seat is connected to the top of the lifting device and is used to hold the double screw;

[0010] The moving device is arranged at the bottom of the vehicle frame and is used to drive the vehicle frame to move.

[0011] Optionally, in the above double-screw auxiliary installation trolley, the lifting device includes a hinge assembly, a rotating handle and a screw rod, wherein:

[0012] The first end of the hinge assembly is threadedly engaged with the first end of the screw rod;

[0013] The second end of the hinge assembly is threadedly engaged with the second end of the screw rod;

[0014] The rotating handle is fixedly connected to the screw rod;

[0015] When the rotary handle rotates in the first direction, the first end and the second end of the hinge assembly move towards each other, and the hinge assembly extends in the vertical direction;

[0016] When the rotary handle rotates in the second direction, the first end and the second end of the hinge assembly move away from each other, and the hinge assembly contracts in the vertical direction.

[0017] Optionally, in the above-mentioned double-screw assisted installation trolley, the hinge assembly is quadrilateral, including an upper top head, a lower top head, a first support arm, a second support arm, a third support arm and a fourth support arm, where:

[0018] The first end of the first support arm is hinged to the upper top head, and its second end is connected to the second end of the fourth support arm to form the first end of the hinge assembly;

[0019] The first end of the second support arm is hinged to the upper top head, and its second end is connected to the second end of the third support arm to form the second end of the hinge assembly;

[0020] The first end of the third support arm is hinged to the lower top head, and the first end of the fourth support arm is hinged to the lower top head;

[0021] The upper top head is fixedly connected to the bottom of the fixed seat, and the lower top head is fixedly connected to the vehicle frame.

[0022] Optionally, in the above-mentioned double-screw assisted installation trolley, the hinge assembly further includes a base, the base is fixedly connected to the vehicle frame, and the lower top head is fixedly connected to the base.

[0023] Optionally, in the above-mentioned double-screw assisted installation trolley, the fixed seat is arc-shaped, and a shock-absorbing pad is arranged on the arc surface. The shock-absorbing pad is made of an elastic material and is used to receive the double screw.

[0024] Optionally, in the above-mentioned double-screw assisted installation trolley, the vehicle frame includes a tabletop and a frame body. The lifting device is fixedly connected to the tabletop, and the frame body is used to support the tabletop.

[0025] Optionally, in the above-mentioned double-screw assisted installation trolley, the number of the limiting devices is two, and they are arranged oppositely at both ends of the fixed seat;

[0026] The limiting device includes a retaining piece, a screw, a guide rod and a guide sleeve;

[0027] The retaining piece is arranged on the upper surface of the fixed seat;

[0028] The screw is used to fixedly connect the fixed seat, the retaining piece and the first end of the guide rod;

[0029] The tabletop is provided with a through hole that mates with the second end of the guide rod. The guide sleeve is fixed to the through hole and sleeved outside the guide rod.

[0030] Optionally, in the above-mentioned double-screw assisted installation cart, the guide rod is a telescopic rod.

[0031] Optionally, in the above-mentioned double-screw assisted installation cart, the frame further includes a handle, and the handle is fixedly connected to the tabletop.

[0032] Optionally, in the above-mentioned double-screw assisted installation cart, the moving device includes movable wheels and fixed wheels, and the movable wheels are used for steering.

[0033] When the double-screw assisted installation cart provided by the present utility model is in use, an operator pushes the frame to a preset position through the moving device, arranges the double screws on the fixed seat, and controls the lifting device to extend or contract in the vertical direction until the double screws reach the preset position. While the lifting device is moving, the limiting device limits the movement of the fixed seat in the horizontal direction to achieve leveling of the double screws. During the above operation process, the fixed seat can prevent the double screws from being knocked during installation, the lifting device can achieve smooth movement of the double screws, and the limiting device can ensure leveling of the double screws, thereby improving the installation efficiency of the screws. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0035] Figure 1 It is an overall structure diagram of the double-screw assisted installation cart disclosed in the embodiment of the present utility model;

[0036] Figure 2 It is a front view of the double-screw assisted installation cart disclosed in the embodiment of the present utility model;

[0037] Figure 3 It is a side view of the double-screw assisted installation cart disclosed in the embodiment of the present utility model;

[0038] Figure 4 It is a partial enlarged view of the double-screw assisted installation cart disclosed in the embodiment of the present utility model;

[0039] Wherein:

[0040] Frame 100, frame body 101, table top 102, handle 103, fixed seat 200, rotating handle 300, upper head 301, lower head 302, first support arm 303, second support arm 304, third support arm 305, fourth support arm 306, base 307, screw 400, retaining plate 401, guide rod 402, guide sleeve 403, movable wheel 500, fixed wheel 501, double screw 600, screw rod 700. Detailed implementation mode

[0041] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0042] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "top surface", "bottom surface", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated position or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0043] As Figures 1 - 4 As shown, the double-screw assisted installation trolley disclosed in the present invention includes a frame 100, a lifting device, a limiting device, a fixed seat 200 and a moving device. Among them, the bottom of the lifting device is fixedly connected to the frame 100, and the lifting device can extend and contract in the vertical direction. The first end of the limiting device is connected to the fixed seat 200, and its second end is connected to the frame 100, and is used to limit the movement of the fixed seat 200 in the horizontal direction. The fixed seat 200 is connected to the top of the lifting device and is used to receive the double screw 600. The moving device is arranged at the bottom of the frame 100 and is used to drive the frame 100 to move. Specifically, the double-screw assisted installation trolley provided by the present invention can be used in cooperation with a traveling crane hoisting, and is used for the assisted installation of the double screw 600 with a heavy mass, a long length and inconvenient manual movement. After the double screw 600 is hoisted to a certain height by the traveling crane and the sling, place the double-screw assisted installation trolley under the double screw 600. After arranging 2-3 double-screw assisted installation trolleys at equal intervals according to the length of the double screw 600, the traveling crane and the sling can be removed. By adjusting the height of the lifting device, the double screw 600 can be made to have the same height as the cylinder hole and be kept horizontal, so as to level the double screw 600 and improve the installation efficiency of the screw.

[0044] The double-screw auxiliary installation trolley provided by the utility model, when in use, an operator pushes the vehicle frame 100 to a preset position through a moving device, arranges the double screw 600 on the fixed seat 200, and controls the lifting device to extend or contract in the vertical direction until the double screw reaches the preset position. While the lifting device is moving, the limiting device limits the movement of the fixed seat 200 in the horizontal direction to level the double screw 600. During the above operation process, the fixed seat 200 can prevent the double screw 600 from being knocked during installation, the lifting device can realize the stable movement of the double screw 600, and the limiting device can ensure the leveling of the double screw 600, thereby improving the installation efficiency of the screw.

[0045] To optimize the above technical solution, the lifting device includes a hinge assembly, a rotating handle 300 and a screw 700. Among them, the first end of the hinge assembly is threadedly engaged with the first end of the screw 700, and the second end of the hinge assembly is threadedly engaged with the second end of the screw 700. The rotating handle 300 is fixedly connected to the screw 700. When the rotating handle 300 rotates in the first direction, the first end and the second end of the hinge assembly move towards each other, and the hinge assembly extends in the vertical direction. When the rotating handle 300 rotates in the second direction, the first end and the second end of the hinge assembly move away from each other, and the hinge assembly contracts in the vertical direction. Specifically, the first direction is one of clockwise or counterclockwise, and the second direction is the other of clockwise or counterclockwise. When in use, an operator adjusts the position of the fixed seat 200 by controlling the length of the hinge assembly to extend or contract in the vertical direction, thereby adjusting the position of the double screw 600 until the double screw 600 reaches the preset position to improve the installation efficiency of the screw.

[0046] To optimize the above technical solution, the hinge assembly is quadrilateral, including an upper top head 301, a lower top head 302, a first support arm 303, a second support arm 304, a third support arm 305 and a fourth support arm 306. Among them, the first end of the first support arm 303 is hinged to the upper top head 301, and its second end is connected to the second end of the fourth support arm 306 to form the first end of the hinge assembly. The first end of the second support arm 304 is hinged to the upper top head 301, and its second end is connected to the second end of the third support arm 305 to form the second end of the hinge assembly. The first end of the third support arm 305 is hinged to the lower top head 302, and the first end of the fourth support arm 306 is hinged to the lower top head 302. The upper top head 301 is fixedly connected to the bottom of the fixed seat 200, and the lower top head 302 is fixedly connected to the vehicle frame 100. Specifically, the second end of the first support arm 303 and the second end of the fourth support arm 306 are hinged through a hinge shaft, and an internal threaded hole threadedly engaged with the screw 700 is provided on the hinge shaft, so that the first support arm 303 and the fourth support arm 306 will move as the screw 700 rotates. The connection mode of the second end of the second support arm 304 and the second end of the third support arm 305 is the same as the above description.

[0047] During use, the operator controls the rotation handle 300 to rotate in the first direction. The second ends of the first support arm 303 and the fourth support arm 306 move towards the second ends of the second support arm 304 and the third support arm 305. The upper jack head 301 and the lower jack head 302 move away from each other, the hinge assembly extends in the vertical direction, driving the fixed seat 200 to rise; the operator controls the rotation handle 300 to rotate in the second direction. The second ends of the first support arm 303 and the fourth support arm 306 move away from the second ends of the second support arm 304 and the third support arm 305. The upper jack head 301 and the lower jack head 302 move closer to each other, the hinge assembly contracts in the vertical direction, driving the fixed seat 200 to descend. During the above process, the lower jack head 302 remains stationary, and the upper jack head 301 moves, driving the fixed seat 200 to move to adjust the specific corresponding position of the double screw 600, thereby achieving the leveling of the double screw 600 and improving the installation efficiency of the screw.

[0048] To optimize the above technical solution, the hinge assembly further includes a base 307. The base 307 is fixedly connected to the vehicle frame 100, and the lower jack head 302 is fixedly connected to the base 307. Specifically, the base 307 is bolted or welded to the vehicle frame 100 to increase the contact area between the whole lifting device and the vehicle frame 100, making the connection between the vehicle frame 100 and the lifting device more stable and improving the overall stability of the double screw auxiliary installation trolley.

[0049] To optimize the above technical solution, the fixed seat 200 is arc-shaped, and a shock pad is arranged on the arc surface. The shock pad is made of an elastic material and is used to support the double screw 600. Specifically, it is preferred that the shock pad is made of rubber. The inner radius of the fixed seat 200 is slightly larger than the radius of the double screw 600, and the center distance of the fixed seat 200 is equal to the center distance of the double screw 600. During use, the double screw 600 presses on the shock pad of the fixed seat 200. The shock pad is soft in texture, completely fits with the fixed seat 200, and the double screw 600 has a heavy self-weight, so it will not produce vertical displacement when pressing on the fixed seat 200. At the same time, the fixed seat 200 is arc-shaped, restricting the horizontal movement of the double screw 600. Such an arrangement can improve the stability of the double screw 600, prevent it from shaking on the fixed seat 200, and protect the double screw 600 from being knocked, bent and deformed during installation, thereby improving the installation efficiency of the screw.

[0050] To optimize the above technical solution, the vehicle frame 100 includes a tabletop 102 and a frame body 101. The lifting device is fixedly connected to the tabletop 102, and the frame body 101 is used to support the tabletop 102. Specifically, the base 307 is fixedly connected to the tabletop 102, and the tabletop 102 is a support for the lifting device and the fixed seat 200.

[0051] To optimize the above technical solution, the number of the limiting devices is two, and they are arranged oppositely at both ends of the fixed seat 200. The limiting device includes a retaining piece 401, a screw 400, a guide rod 402 and a guide sleeve 403. The retaining piece 401 is arranged on the upper surface of the fixed seat 200. The screw 400 is used to fixedly connect the first ends of the fixed seat 200, the retaining piece 401 and the guide rod 402. The tabletop 102 is provided with a through hole matching with the second end of the guide rod 402. The guide sleeve 403 is fixed in the through hole and sleeved outside the guide rod 402. Specifically, the limiting device is used to limit the movement of the fixed seat 200 in the vertical direction. The guide rod 402 and the guide sleeve 403 are in clearance fit, and there is a certain matching length between the guide rod 402 and the guide sleeve 403, and the friction angle is close to 0° to avoid jamming of the guide rod 402. During use, the screw 400 fixedly connects the first ends of the fixed seat 200, the retaining piece 401 and the guide rod 402, and the guide sleeve 403 is fixed in the through hole. When the lifting device drives the fixed seat 200 to rise or fall, the fixed seat 200 drives the guide rod 402 to rise or fall, and the guide rod 402 slides inside the guide sleeve 403. The guide sleeve 403 limits the guide rod 402, so that the guide rod 402 always moves in the vertical direction, thereby forming a limit on the movement of the fixed seat 200. By arranging two limiting devices, both ends of the fixed seat 200 can be limited, so as to ensure the leveling of the double screw 600 and improve the installation efficiency of the screw.

[0052] To optimize the above technical solution, the guide rod 402 is a telescopic rod. Specifically, setting the guide rod 402 as a telescopic rod can reduce the occupied space of the double screw auxiliary installation cart. When the guide rod 402 is a telescopic rod, the guide rod 402 can be a sleeve, and at least one rod has a preset matching length with the guide sleeve 403 to ensure the limiting function of the limiting device.

[0053] To optimize the above technical solution, the frame 100 further includes a handle 103, and the handle 103 is fixedly connected to the tabletop 102. Specifically, the handle 103 is used to pull the moving direction of the frame 100. By arranging the handle 103, it is convenient for the operator to move the double screw auxiliary installation cart, meet the requirements of hoisting the double screw 600 at different positions, and improve the flexibility and convenience of using the double screw auxiliary installation cart.

[0054] To optimize the above technical solution, the moving device includes a movable wheel 500 and a fixed wheel 501, and the movable wheel 500 is used for steering. Specifically, the fixed wheel 501 cannot rotate its direction, so as to facilitate the stable movement of the moving device in one direction, and the movable wheel 500 can adjust its direction, so as to facilitate the moving device to change direction.

[0055] It should be noted that the double screw auxiliary installation cart provided by the present invention mechanically adjusts the height of the lifting device. Compared with the electric hydraulic lifting adjustment, it is convenient and labor-saving to adjust the height, and reduces the production cost of the double screw auxiliary installation cart.

[0056] The advantages of the present utility model are as follows:

[0057] (1) Thus, the installation efficiency of the screw is improved;

[0058] (2) The overall stability is high and the safety is high;

[0059] (3) Double-screw leveling can be achieved.

[0060] It should be noted that the double-screw assisted installation trolley provided by the present utility model can be applied to the technical field of mechanical equipment installation or other fields. The other fields refer to any fields other than the technical field of mechanical equipment installation. The above is only an example and does not limit the application fields of the double-screw assisted installation trolley provided by the present utility model.

[0061] In this specification, the various embodiments are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. For the same or similar parts among the various embodiments, reference can be made to each other.

[0062] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to the embodiments shown herein, but rather will be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0063] In the description of this specification, the description referring to terms such as "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0064] The above-disclosed preferred embodiments of the present utility model are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to only the specific implementation manners. Obviously, many modifications and variations can be made according to the content of this specification. The present specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present utility model, so that those skilled in the art can well understand and utilize the present utility model. The present utility model is only limited by the claims and their full scope and equivalents.

Claims

1. A twin-screw assisted installation cart, characterized in that: It includes a frame, a lifting device, a limiting device, a fixing seat and a moving device, wherein: The bottom of the lifting device is fixedly connected to the frame, and the lifting device can extend and contract in the vertical direction; The first end of the limiting device is connected to the fixing seat, and the second end thereof is connected to the frame, and is used to limit the movement of the fixing seat in the horizontal direction; The fixing seat is connected to the top of the lifting device and is used to receive the double screws; The moving device is arranged at the bottom of the frame and is used to drive the frame to move.

2. The twin-screw assisted installation cart according to claim 1, characterized in that: The lifting device comprises an articulated assembly, a rotating handle and a screw rod, wherein: The first end of the hinge assembly is threadedly engaged with the first end of the screw rod; The second end of the hinge assembly is threadedly engaged with the second end of the screw rod; The rotating handle is fixedly connected to the screw rod; When the rotating handle rotates in a first direction, the first end of the hinge assembly and the second end of the hinge assembly move toward each other, and the hinge assembly extends in a vertical direction; When the rotating handle rotates along the second direction, the first end of the hinge assembly and the second end of the hinge assembly move away from each other, and the hinge assembly contracts along the vertical direction.

3. The twin-screw assisted installation cart according to claim 2, characterized in that: The hinge assembly is quadrilateral, and includes an upper head, a lower head, a first support arm, a second support arm, a third support arm and a fourth support arm, wherein: The first end of the first support arm is hinged to the upper head, and the second end of the first support arm is connected to the second end of the fourth support arm to form the first end of the hinge assembly; The first end of the second support arm is hinged to the upper head, and the second end of the second support arm is connected to the second end of the third support arm to form the second end of the hinge assembly; The first end of the third support arm is hinged to the lower head, and the first end of the fourth support arm is hinged to the lower head; The upper head is fixedly connected to the bottom of the fixing seat, and the lower head is fixedly connected to the frame.

4. The twin-screw assisted installation cart according to claim 3, characterized in that: The hinge assembly also includes a base, the base is fixedly connected to the frame, and the lower head is fixedly connected to the base.

5. The twin-screw assisted installation cart according to claim 1, characterized in that: The fixing seat is arc-shaped, and a shock-absorbing pad is arranged on the arc surface. The shock-absorbing pad is made of elastic material, and the shock-absorbing pad is used to receive the double screw.

6. The twin-screw assisted installation cart according to claim 5, characterized in that: The frame comprises a table top and a frame body, the lifting device is fixedly connected to the table top, and the frame body is used to support the table top.

7. The twin-screw assisted installation cart according to claim 6, characterized in that: The number of the limiting devices is two, and they are arranged oppositely at two ends of the fixing seat; The limiting device includes a baffle, a screw, a guide rod and a guide sleeve; The blocking piece is arranged on the upper surface of the fixing seat; The screw is used to fix the fixing seat, the blocking piece and the first end of the guide rod; The table top is provided with a through hole matched with the second end of the guide rod, and the guide sleeve is fixed to the through hole and sleeved on the outside of the guide rod.

8. The twin-screw assisted installation cart according to claim 7, characterized in that: The guide rod is a telescopic rod.

9. The double-screw auxiliary installation cart according to claim 6, characterized in that: The frame also includes a handle, which is fixedly connected to the table top.

10. The twin-screw assisted installation cart according to claim 1, characterized in that: The moving device comprises movable wheels and fixed wheels, and the movable wheels are used for steering.

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