Combined cylinder device for controlling core frame of centrifugal pipe casting machine

Abstract

The utility model discloses a centrifugal pipe casting machine core frame control combined cylinder device, and relates to the field of centrifugal pipe casting machine core frame devices. The centrifugal pipe casting machine core frame control combined cylinder device comprises a combined cylinder body, the combined cylinder body is composed of a rack hydraulic cylinder and a telescopic hydraulic cylinder, the rack hydraulic cylinder and the telescopic hydraulic cylinder are provided with an angle encoder and a position encoder respectively, and the rack hydraulic cylinder and the telescopic hydraulic cylinder have the effect of adjusting the angle and the position of a centrifugal casting pipe; and the rack hydraulic cylinder is connected with the telescopic hydraulic cylinder through a connecting piece. According to the centrifugal pipe casting machine core frame control combined cylinder device, a centrifugal casting pipe and a core frame main body are installed, a rack hydraulic cylinder and a telescopic hydraulic cylinder are combined to form a combined cylinder, and under the mutual cooperation of a gear, a rack main body, an outer gear sleeve shaft and an inner gear sleeve shaft, the angle and position of a core frame arm and the core frame main body can be adjusted; therefore, the angle and position dual control of the centrifugal casting pipe can be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of a centrifugal pipe casting machine core frame, in particular to a centrifugal pipe casting machine core frame control combined cylinder device. Background Art

[0002] In the ductile iron pipe production line, the water-cooled centrifugal pipe casting machine is the main equipment for producing ductile iron pipes. The core rack device is one of the important equipment of the centrifugal pipe casting machine, which is mainly used for the installation and compaction of the socket sand core. The control accuracy of the core rack device is directly related to the quality of the ductile iron pipe socket molding and molding.

[0003] The ductile iron pipe is installed and connected with the core frame. During the processing of the ductile iron pipe, the angle and position of the core frame need to be adjusted to facilitate the processing of the ductile iron pipe. In the existing process of adjusting the angle and position of the core frame, the angle and position control are often not connected during the adjustment. The two are in separate entities, which makes it difficult to achieve dual control of position and angle.

[0004] The utility model is designed according to the process equipment characteristics of a centrifugal pipe casting machine for large-size ductile iron pipes using a water-cooling method, and a core frame control combined cylinder device for a high-precision centrifugal pipe casting machine for ductile iron pipes is used to solve the above problems. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a centrifugal casting pipe core frame control combined cylinder device, which solves the problem that it is inconvenient to realize dual control of angle and position according to the centrifugal casting pipe.

[0006] To achieve the above purpose, the utility model is implemented by the following technical solutions: a centrifugal casting machine core frame control combined cylinder device, including a combined cylinder body, the combined cylinder body is composed of a rack hydraulic cylinder and a telescopic hydraulic cylinder, the rack hydraulic cylinder is located on one side of the telescopic hydraulic cylinder, the rack hydraulic cylinder and the telescopic hydraulic cylinder are respectively provided with an angle encoder and a position encoder, the rack hydraulic cylinder and the telescopic hydraulic cylinder have the function of adjusting the angle and position of the centrifugal casting pipe;

[0007] The rack hydraulic cylinder and the telescopic hydraulic cylinder are connected via a connecting piece.

[0008] Preferably, the connecting member comprises:

[0009] An internal gear sleeve shaft connected to a telescopic hydraulic cylinder;

[0010] An external gear sleeve shaft connected to a telescopic hydraulic cylinder;

[0011] The inner gear sleeve shaft drives the outer gear sleeve shaft to rotate.

[0012] Preferably, the output end of the rack hydraulic cylinder is fixedly connected to a rack body, and the bottom ends of the rack bodies are meshed with gears.

[0013] Preferably, one end of the gear is fixedly connected to the outer wall of one end of the internal gear sleeve shaft, and the inner circumferential wall of the external gear sleeve shaft is meshed with the outer circumferential wall of the internal gear sleeve shaft.

[0014] Preferably, the outer gear sleeve shaft is slidably connected to the outer peripheral wall of the inner gear sleeve shaft, and the outer peripheral wall of the outer gear sleeve shaft is provided with a cylinder.

[0015] Preferably, the cylinder barrel is connected to a telescopic hydraulic cylinder.

[0016] Preferably, an outer wall at one end of the external gear sleeve shaft is fixedly connected to a core frame arm, one end of the core frame arm is fixedly connected to a core frame body, and a signal plate is provided at one end of the external gear sleeve shaft.

[0017] Preferably, the position encoder is mounted on the cylinder barrel, and the angle encoder is mounted on the internal gear sleeve shaft.

[0018] The utility model discloses a centrifugal casting machine core frame control combined cylinder device, which has the following beneficial effects: the centrifugal casting machine core frame control combined cylinder device enables the centrifugal casting pipe to be installed with the core frame body, and forms a combined cylinder by combining a rack hydraulic cylinder with a telescopic hydraulic cylinder. Under the mutual cooperation of the gear, the rack body, the external gear sleeve shaft and the internal gear sleeve shaft, the angle and position of the core frame arm and the core frame body can be adjusted, thereby realizing dual control of the angle and position of the centrifugal casting pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the rack hydraulic cylinder of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the internal gear sleeve shaft of the utility model;

[0023] Figure 4 This is a schematic diagram of the motion structure of the combined cylinder of the utility model;

[0024] Figure 5This is a schematic diagram of the structure of the external gear sleeve shaft of the utility model.

[0025] In the figure: 1, rack hydraulic cylinder; 101, telescopic hydraulic cylinder; 2, angle encoder; 3, gear; 301, rack body; 4, cylinder barrel; 5, external gear sleeve shaft; 6, position encoder; 7, internal gear sleeve shaft; 8, core frame body; 9, core frame arm; 10, signal board. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model is described clearly and completely. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] The embodiment of the present application solves the problem of inconvenience in achieving dual control of angle and position according to the centrifugal casting pipe by providing a centrifugal casting pipe core frame control combined cylinder device, thereby achieving dual control of angle and position of the centrifugal casting pipe.

[0028] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0029] The utility model embodiment discloses a centrifugal pipe casting machine core frame control combined cylinder device.

[0030] According to the attached Figure 1-5 As shown, it includes a combined cylinder body, the driving force of the combined cylinder comes from an external oil pressure power source, and under the precise control of the hydraulic control element, the combined cylinder can realize the angle and position specified by the angle encoder 2 and the position encoder 6. The combined cylinder body is composed of a rack hydraulic cylinder 1 and a telescopic hydraulic cylinder 101. The telescopic hydraulic cylinder 101 in the combined hydraulic cylinder controls the extension and retraction of the core frame arm 9. The angle encoder 2 gives the swing angle of the rack hydraulic cylinder 1. The position encoder 6 is a laser code, and the telescopic position of the core frame arm 9 is given by detecting the position of the signal plate 10. The rack hydraulic cylinder 1 is located on one side of the telescopic hydraulic cylinder 101. The rack hydraulic cylinder 1 and the telescopic hydraulic cylinder 101 are respectively provided with an angle encoder 2 and a position encoder 6. The rack hydraulic cylinder 1 and the telescopic hydraulic cylinder 101 have the function of adjusting the angle and position of the centrifugal casting pipe.

[0031] The rack hydraulic cylinder 1 and the telescopic hydraulic cylinder 101 are connected via a connecting piece.

[0032] Connectors include:

[0033] The internal gear sleeve shaft 7 is connected to the telescopic hydraulic cylinder 101;

[0034] The external gear sleeve shaft 5 is connected to the telescopic hydraulic cylinder 101;

[0035] The inner gear sleeve shaft 7 drives the outer gear sleeve shaft 5 to rotate. When in use, first install the centrifugal casting pipe to be processed and the core frame body 8, transmit the signal to the angle encoder 2 and the position encoder 6 through the detection signal board 10, and give the telescopic position and angle position of the core frame arm 9 according to the position;

[0036] The output end of the rack hydraulic cylinder 1 is fixedly connected to the rack body 301, and the bottom end of the rack body 301 is meshed with a gear 3, one end of the gear 3 is fixedly connected to the outer wall of one end of the inner gear sleeve shaft 7, and the inner circumferential wall of the outer gear sleeve shaft 5 is meshed with the outer circumferential wall of the inner gear sleeve shaft 7. When adjusting the angular position of the core frame body 8, the rack hydraulic cylinder 1 is started to drive the rack body 301 to slide, and the gear 3 drives the inner gear sleeve shaft 7 to rotate it, and through the mutual meshing of the inner gear sleeve shaft 7 and the outer gear sleeve shaft 5, the core frame arm 9 can be driven to adjust the angle.

[0037] The outer gear sleeve shaft 5 is slidably connected to the outer peripheral wall of the inner gear sleeve shaft 7. The outer peripheral wall of the outer gear sleeve shaft 5 is provided with a cylinder barrel 4. The gear 3 of the rack hydraulic cylinder 1 is installed on the inner gear sleeve shaft 7 of the telescopic hydraulic cylinder 101. The cylinder barrel 4 is connected to the telescopic hydraulic cylinder 101. The telescopic hydraulic cylinder 101 adopts a long flat keyway method with high processing precision to realize that the inner gear sleeve shaft 7 drives the outer gear sleeve shaft 5 to rotate.

[0038] The outer wall of one end of the external gear sleeve shaft 5 is fixedly connected to a core frame arm 9, and one end of the core frame arm 9 is fixedly connected to a core frame body 8. An angle encoder 2 and a position encoder 6 are combined to achieve dual control of angle and position. A signal board 10 is provided at one end of the external gear sleeve shaft 5, the position encoder 6 is installed on the cylinder barrel 4, and the angle encoder 2 is installed on the internal gear sleeve shaft 7.

[0039] In summary, compared with the prior art, the present invention has the following beneficial effects: the centrifugal casting tube is installed with the core frame body 8, and a combined cylinder is formed by combining the rack hydraulic cylinder 1 and the telescopic hydraulic cylinder 101. With the cooperation of the gear 3, the rack body 301, the external gear sleeve shaft 5 and the internal gear sleeve shaft 7, the angle and position of the core frame arm 9 and the core frame body 8 can be adjusted, thereby realizing dual control of the angle and position of the centrifugal casting tube.

[0040] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A centrifugal casting machine core frame control combined cylinder device, comprising a combined cylinder body, characterized in that: The combined cylinder body is composed of a rack hydraulic cylinder (1) and a telescopic hydraulic cylinder (101); the rack hydraulic cylinder (1) is located on one side of the telescopic hydraulic cylinder (101); an angle encoder (2) and a position encoder (6) are provided at the rack hydraulic cylinder (1) and the telescopic hydraulic cylinder (101), respectively; the rack hydraulic cylinder (1) and the telescopic hydraulic cylinder (101) have the function of adjusting the angle and position of the centrifugal casting pipe; The rack hydraulic cylinder (1) and the telescopic hydraulic cylinder (101) are connected via a connecting piece.

2. According to claim 1, a centrifugal casting machine core frame control combined cylinder device is characterized in that: The connecting piece comprises: An internal gear sleeve shaft (7) connected to a telescopic hydraulic cylinder (101); An external gear sleeve shaft (5) connected to a telescopic hydraulic cylinder (101); The inner gear sleeve shaft (7) drives the outer gear sleeve shaft (5) to rotate.

3. A centrifugal casting machine core frame control combined cylinder device according to claim 2, characterized in that: The output end of the rack hydraulic cylinder (1) is fixedly connected to a rack body (301), and the bottom end of the rack body (301) is meshed with a gear (3).

4. A centrifugal casting machine core frame control combined cylinder device according to claim 3, characterized in that: One end of the gear (3) is fixedly connected to the outer wall of one end of the internal gear sleeve shaft (7), and the inner peripheral wall of the external gear sleeve shaft (5) and the outer peripheral wall of the internal gear sleeve shaft (7) are meshed with each other.

5. A centrifugal casting machine core frame control combined cylinder device according to claim 4, characterized in that: The outer gear sleeve shaft (5) is slidably connected to the outer peripheral wall of the inner gear sleeve shaft (7), and the outer peripheral wall of the outer gear sleeve shaft (5) is provided with a cylinder barrel (4).

6. A centrifugal pipe casting machine core frame control combined cylinder device according to claim 5, characterized in that: The cylinder barrel (4) is connected to the telescopic hydraulic cylinder (101).

7. A centrifugal pipe casting machine core frame control combined cylinder device according to claim 6, characterized in that: The outer wall of one end of the external gear sleeve shaft (5) is fixedly connected to a core frame arm (9), one end of the core frame arm (9) is fixedly connected to a core frame body (8), and a signal plate (10) is provided at one end of the external gear sleeve shaft (5).

8. The centrifugal casting machine core frame control combined cylinder device according to claim 1, characterized in that: The position encoder (6) is mounted on the cylinder barrel (4), and the angle encoder (2) is mounted on the internal gear sleeve shaft (7).

Images