Improved Structure of a Vibration Molding Equipment for Prestressed Concrete Pipes

Abstract

The present application discloses an improved structure of a vibration forming device for prestressed concrete pipes, which is characterized in that it includes an upper platform frame, a middle platform frame, and a lower platform frame. The upper platform frame, the middle platform frame, and the lower platform frame are arranged in sequence from top to bottom. The lower platform frame is fixed to the ground through anchor bolts. A spring base is arranged between the lower platform frame and the middle platform frame. An exciter is installed on the middle platform frame. A panel is arranged on the upper platform frame. A limiting block is arranged above the panel. The side of the exciter is connected with a transmission shaft and the exciter is connected with the transmission shaft through a coupling. The transmission shaft is connected with a speed reducer. The speed reducer is connected with a motor. The speed reducer and the motor are connected through a belt. The motor is connected with a frequency conversion cabinet. During the use of the present application, maintenance workers do not need to frequently replace the eccentric blocks, reducing the labor intensity and improving the labor efficiency. During the entire blanking process, different exciting forces are used according to the blanking situation, which better meets the quality and process requirements.

Description

Technical Field

[0001] The present application relates to vibration forming equipment, and particularly to an improved structure of a vibration forming equipment for prestressed concrete pipes. Background Art

[0002] Since the successful trial production of prestressed concrete water conveyance pipes in China in the early 1960s, prestressed concrete water conveyance pipes, as the main non-metallic pipe materials, have been widely used in urban water supply and drainage projects, long-distance water conveyance projects, farmland irrigation and various water conservancy projects. The prestressed concrete one-stage pipe refers to a precast concrete pipe with bidirectional prestress established in the concrete pipe wall and produced by a vibration extrusion process. The outer protective layer of the pipe is concrete, and the structural form of the pipe is integral. The forming quality of the pipe is directly related to the magnitude of the exciting force of the vibrating table. The original structural form of the vibrating table frame is that the vibrator is placed below (i.e., the vibrator is hung upside down on the mounting seat of the table frame). During the use of the vibrating table, due to gravity, the bearing of the vibrator runs out seriously, and the maintenance frequency is high. Each time refueling, maintenance and repair are required, the entire vibrating table frame needs to be lifted out to disassemble the vibrator, which is time-consuming and laborious. Since the exciting force of each vibrating table is fixed, each vibrating table can only produce 2 to 3 specifications of pipes. When the number of pipe specifications increases, maintenance personnel need to remove the entire vibrating table surface, and then change the exciting force of the vibrating table by adjusting the number of eccentric blocks or the relative angle of the eccentric blocks to meet the production needs. Moreover, when replacing the eccentric blocks, it is time-consuming and laborious, the workload of maintenance personnel is large, the labor intensity is high, and the production efficiency is low. Therefore, it is necessary to find an improved structure of a vibration forming equipment for prestressed concrete pipes to solve the above problems. Summary of the Invention

[0003] The present application provides an improved structure of a vibration forming equipment for prestressed concrete pipes, which solves the problems of high maintenance frequency and difficult maintenance of the vibrating table in the prior art.

[0004] The present application provides an improved structure of a vibration forming equipment for prestressed concrete pipes, including an upper table frame, a middle table frame, and a lower table frame. The upper table frame, the middle table frame, and the lower table frame are distributed in sequence from top to bottom. The lower table frame is fixed to the ground by anchor bolts. A spring base is provided between the lower table frame and the middle table frame. A vibrator is installed on the middle table frame. A panel is provided on the upper table frame. A limiting block is provided above the panel. A transmission shaft is connected to the side of the vibrator and the vibrator is connected to the transmission shaft through a coupling. The transmission shaft is connected to a speed reducer, the speed reducer is connected to a motor, the speed reducer and the motor are connected by a belt, and the motor is connected to a frequency conversion cabinet.

[0005] Further, for an improved structure of a vibration forming equipment for prestressed concrete pipes, the vibrator is fixed on the middle table frame and is located between the middle table frame and the upper table frame.

[0006] Furthermore, for an improved structure of a vibration molding device for prestressed concrete pipes, the middle platform frame and the upper platform frame are fixedly connected by bolts.

[0007] Furthermore, for an improved structure of a vibration molding device for prestressed concrete pipes, reinforcing rib plates are provided in the middle of the middle platform frame.

[0008] Furthermore, for an improved structure of a vibration molding device for prestressed concrete pipes, several of the reinforcing rib plates are evenly distributed in a ring shape.

[0009] As can be seen from the above technical solutions, the present application provides an improved structure of a vibration molding device for prestressed concrete pipes. By sequentially arranging an upper platform frame, a middle platform frame, and a lower platform frame from top to bottom, and arranging an exciter on the middle platform frame, changing the traditional lower-mounted type to an upper-mounted type can effectively solve the problem that the bearings of the exciter are prone to running out of the outer circle, reduce the maintenance cost, labor cost, and labor intensity of the maintenance workers. In addition, in cooperation with a frequency conversion control cabinet, soft start of the motor is realized, and the start-up process is smooth without impact on the motor power grid. During the use process, the maintenance workers no longer need to frequently replace the eccentric blocks, reducing the labor intensity and improving the labor efficiency. During the entire blanking process, different excitation forces are used according to the blanking situation, which better meets the quality and process requirements and satisfies the requirement of producing pipes of multiple specifications with one vibration table. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the technical solutions of the present application, the following will briefly introduce the drawings required in the implementation cases. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0011] Figure 1 It is a schematic structural diagram of the present application.

[0012] Illustration:

[0013] Among them, 1 - upper platform frame, 2 - middle platform frame, 3 - lower platform frame, 4 - spring base, 5 - exciter, 6 - panel, 7 - limit block, 8 - transmission shaft, 9 - coupling, 10 - reducer, 11 - motor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0014] In order to enable those skilled in the art to better understand the technical solutions in the present application, the following will clearly and completely describe the technical solutions in the embodiments of the present application in conjunction with the drawings.

[0015] See Figure 1

[0016] As can be seen from the above technical solutions, an improved structure of a vibration molding device for prestressed concrete pipes includes an upper platform 1, a middle platform 2, and a lower platform 3. The upper platform 1, the middle platform 2, and the lower platform 3 are distributed in sequence from top to bottom. The lower platform 3 is fixed to the ground by anchor bolts. A spring base 4 is provided between the lower platform 3 and the middle platform 2. An exciter 5 is installed on the middle platform 2. A panel 6 is provided on the upper platform 1. A limit block 7 is provided above the panel 6. A transmission shaft 8 is connected to the side of the exciter 5 and the exciter 5 is connected to the transmission shaft 8 through a coupling 9. The transmission shaft 8 is connected to a speed reducer 10. The speed reducer 10 is connected to a motor 11. The speed reducer 10 and the motor 11 are connected by a belt. The motor 11 is connected to a frequency conversion cabinet.

[0017] This application changes the traditional lower-mounted type to an upper-mounted type, which can effectively solve the problem that the exciter bearings are prone to running outer circles, reduce the maintenance cost, labor cost, and the labor intensity of maintenance workers. In addition, in cooperation with the frequency conversion control cabinet, soft start of the motor is realized, and the start-up process is smooth without impact on the motor power grid. During the use process, maintenance workers no longer frequently replace the eccentric blocks, reducing the labor intensity and improving the labor efficiency. During the entire blanking process, different excitation forces are used according to the blanking situation, which better meets the quality and process requirements and satisfies the requirement of producing pipes of multiple specifications on one vibrating table.

[0018] Preferably, the exciter 5 is fixed on the middle platform 2 and is located between the middle platform 2 and the upper platform 1.

[0019] Preferably, the middle platform 2 and the upper platform 1 are fixedly connected by bolts.

[0020] Preferably, reinforcing rib plates are provided in the middle of the middle platform 2.

[0021] Preferably, there are several reinforcing rib plates and they are evenly distributed in a ring shape.

[0022] After considering the specification and the practice of the application disclosed herein, those skilled in the art will readily conceive of other embodiments of the application. This application is intended to cover any variations, uses, or adaptations of the application, which follow the general principles of the application and include the common general knowledge or conventional technical means in the technical field not disclosed in this application. The specification and the embodiments are only regarded as exemplary, and the true scope of the application is pointed out by the claims.

[0023] It should be understood that the application is not limited to the exact structure described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The embodiments of the application described above do not constitute a limitation on the protection scope of the application.

Claims

1. An improved structure of a vibration molding device for prestressed concrete pipes, characterized in that, It includes an upper frame (1), a middle frame (2), and a lower frame (3). The upper frame (1), the middle frame (2), and the lower frame (3) are distributed in sequence from top to bottom. The lower frame (3) is fixed to the ground by anchor bolts. A spring base (4) is provided between the lower frame (3) and the middle frame (2). An exciter (5) is installed on the middle frame (2). A panel (6) is provided on the upper frame (1). A limiting block (7) is provided above the panel (6). A transmission shaft (8) is connected to the side of the exciter (5) and the exciter (5) is connected to the transmission shaft (8) through a coupling (9). The transmission shaft (8) is connected to a speed reducer (10). The speed reducer (10) is connected to a motor (11). The speed reducer (10) and the motor (11) are connected by a belt. The motor (11) is connected to a frequency conversion cabinet. The exciter (5) is fixed on the middle frame (2) and is located between the middle frame (2) and the upper frame (1). The middle frame (2) and the upper frame (1) are fixedly connected by bolts. Reinforcing rib plates are provided in the middle of the middle frame (2). The reinforcing rib plates are several and are evenly distributed in a ring shape.

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