Horizontal intensive mixer hydraulic opening and closing device

Abstract

The utility model belongs to the technical field of mixing machine, disclose a kind of hydraulic opening and closing device of horizontal strong mixing machine, rack, the base set on rack, the upper cover set on base, including hydraulic opening and closing device and locking device, hydraulic opening and closing device includes hydraulic cylinder, piston rod and the arc ear plate on upper cover, the arc ear plate is fixed with the arc surface of upper cover, and is connected with piston rod by U type fixed plate, the left and right sides of the arc ear plate respectively is provided with side ear plate, the locking device includes fixed gear disc, two pressure plates, fixed shaft, handle, the fixed gear disc is connected with side ear plate welding, two pressure plates are set in the left and right sides of side ear plate, and are welded in the upper portion of fixed support on rack, side ear plate is connected with the upper portion of fixed support on rack by locking device, the lower portion of fixed support is fixed on rack along the arc surface of base, by hydraulic opening upper cover, locking device controls the control of upper cover opening angle, improve safety performance.

Description

Technical Field

[0001] This utility model belongs to the field of mixing technology, specifically relating to a hydraulic opening and closing device for a horizontal high-power mixer. Background Technology

[0002] Horizontal mixers are widely used in chemical and pharmaceutical industries, and the opening and closing efficiency of their intermediate inspection ports directly affects equipment maintenance costs. A cover opening and closing device for a horizontal ribbon mixer, disclosed in CN105983366A, uses a cylinder-driven planar linkage mechanism to automatically open and close the cover. However, this solution has the following significant drawbacks:

[0003] (1) Functional limitations: It only realizes basic opening and closing functions, has no angle locking structure, and requires continuous pressure to maintain the angle after opening the cover. It has high energy consumption and there is a risk of pressure loss and falling. It relies on crank slider machine, and the opening trajectory is simple and cannot avoid pipeline obstacles above the equipment.

[0004] (2) Safety hazards: When the cylinder pressure holding fails, the cover will automatically close, which may cause personnel to be pinched during maintenance.

[0005] (3) Low maintenance efficiency: The opening angle cannot be accurately fixed. Utility Model Content

[0006] To solve the above-mentioned technical problems, this utility model provides a hydraulic opening and closing device for a horizontal high-power mixer. The device opens the top cover by driving the piston rod with a hydraulic cylinder and controls the opening angle of the top cover with a locking device, so that the mixer has a locking function when it is opened for maintenance, which improves safety performance and solves safety hazards.

[0007] The technical solution adopted by this utility model is: a hydraulic opening and closing device for a horizontal high-power mixer, comprising a frame, a base mounted on the frame, and a top cover mounted on the base, including a hydraulic opening and closing device and a locking device. The hydraulic opening and closing device includes a hydraulic cylinder mounted on the frame via a U-shaped fixing plate, a piston rod mounted inside the hydraulic cylinder, and an arc-shaped ear plate on the top cover. The arc-shaped ear plate is fixed to the arc surface of the top cover and connected to the piston rod via the U-shaped fixing plate. Side ear plates are provided on the left and right sides of the arc-shaped ear plate. The locking device includes a fixed gear plate, two pressure plates, a fixed shaft, and a handle. The fixed gear plate is welded to the side ear plates. The two pressure plates are located on the left and right sides of the side ear plates and welded to the upper part of the fixed bracket on the frame. The side ear plates are connected to the upper part of the fixed bracket on the frame via the locking device. The lower part of the fixed bracket is attached to and fixed to the frame along the arc surface of the base. The locking device can control the opening and closing angle of the top cover.

[0008] Specifically, the fixed gear plate, the two pressure plates and the side ear plate are all provided with coaxial round holes. The fixed shaft passes through the round hole on the upper part of the fixed bracket, the round hole on the pressure plate and the round hole on the side ear plate from left to right. The left end of the fixed shaft is a flat end with a flat structure and a round hole is provided on the flat end. The handle is hinged to the round hole through a short shaft.

[0009] Specifically, the contact surface between the fixed gear plate and the pressure plate is provided with meshing teeth, which force the meshing teeth of the fixed gear plate and the pressure plate to engage and lock when the handle is pressed down.

[0010] Specifically, the U-shaped fixing plate has threaded holes on its side for threaded connection with the piston rod.

[0011] Specifically, the piston rod is equipped with a bellows telescopic protective sleeve.

[0012] The beneficial effects of this utility model are: (1) This utility model achieves stepless locking of the opening and closing angle of the upper cover by mechanical meshing of the fixed tooth plate and the pressure plate, which solves the safety hazards of relying on continuous pressure maintenance in traditional hydraulic systems or pneumatic systems.

[0013] (2) The opening and closing of the top cover is controlled by driving the piston rod through the hydraulic cylinder. The structure is simple, and it is stable and controllable compared to the traditional starting or manual method. It is suitable for large industrial mixers. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a partial enlarged view of the present invention;

[0016] The markings in the diagram are: 1. Frame; 2. Base; 3. Top cover; 4. Hydraulic opening and closing device; 41. Hydraulic cylinder; 42. Piston rod; 43. Arc-shaped ear plate; 44. U-shaped fixing plate; 45. Side ear plate; 5. Locking device; 51. Fixed gear plate; 52. Pressure plate; 53. Fixed shaft; 54. Handle; 6. Fixed bracket. Detailed Implementation

[0017] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0018] like Figure 1-2As shown, a hydraulic opening and closing device for a horizontal high-power mixer includes a frame 1, a base 2 mounted on the frame 1, and an upper cover 3 mounted on the base 2. The device includes a hydraulic opening and closing device 4 and a locking device 5. The hydraulic opening and closing device 4 includes a hydraulic cylinder 41 mounted on the frame 1 via a U-shaped fixing plate 44, a piston rod 42 inside the hydraulic cylinder 41, and an arc-shaped ear plate 43 on the upper cover 3. The arc-shaped ear plate 43 is fixed to the arc surface of the upper cover 3 and connected to the piston rod 42 via the U-shaped fixing plate 44. The arc-shaped ear plate 43 has two sides. The locking device 5, which includes a side ear plate 45, comprises a fixed gear plate 51, two pressure plates 52, a fixed shaft 53, and a handle 54. The fixed gear plate 51 is welded to the side ear plate 45. The two pressure plates 52 are located on the left and right sides of the side ear plate 45 and are welded to the upper part of the fixed bracket 6 on the frame 1. The side ear plate 45 is connected to the upper part of the fixed bracket 6 on the frame 1 through the locking device 5. The lower part of the fixed bracket 6 is attached to and fixed on the frame 1 along the arc surface of the base 2. The locking device 5 can control the opening and closing angle of the upper cover 3.

[0019] Preferably, the fixed gear plate 51, the two pressure plates 52 and the side ear plate 45 are all provided with coaxial round holes. The fixed shaft 53 passes through the round hole at the top of the fixed bracket, the round hole on the pressure plate 52 and the round hole on the side ear plate from left to right. The left end of the fixed shaft 53 is a flat end with a flat structure and a round hole is provided on the flat end. The handle 54 is hinged to the round hole through a short shaft.

[0020] Preferably, the contact surfaces of the fixed gear plate 51 and the pressure plate 52 are provided with meshing teeth, so that when the handle 54 is pressed down, the meshing teeth of the fixed gear plate 51 and the pressure plate 52 are forced to mesh and lock.

[0021] Preferably, the U-shaped fixing plate 44 has a threaded hole on its side, which is threaded to the piston rod 42.

[0022] Preferably, the piston rod 42 is provided with a bellows telescopic protective sleeve to protect the piston rod from dust contamination.

[0023] When it is necessary to open the top cover 3 for maintenance during operation, loosen the bolts between the top cover and the base to open the top cover and the base. After the hydraulic cylinder 41 is powered on and supplied with oil, the piston rod 42 extends and pushes the U-shaped fixing plate 44 and the arc-shaped ear plate 43 connected thereto, so that the top cover 3 rotates around the fixed shaft 53 and opens. The bellows telescopic protective sleeve protects the piston rod 42 from dust contamination.

[0024] Angle adjustment and locking:

[0025] When the top cover reaches the required angle, the operator presses down the handle 54, and the axial displacement of the fixed shaft 53 forces the fixed toothed plate 51 to engage with the meshing teeth of the pressure plate 52, fixing the position of the side ear plate 45. The meshing tooth design enhances the locking force and prevents loosening caused by vibration.

[0026] Closing action:

[0027] Lift handle 54 to completely disengage the fixed plate 51 from the pressure plate 52. Operate the hydraulic system to retract the piston rod 42 of the hydraulic cylinder 41, smoothly driving the upper cover 3 to close to the top of the base 2. After confirming that the upper cover is fully in place, tighten the bolts.

Claims

1. A hydraulic opening and closing device for a horizontal high-power mixer, comprising a frame (1), a base (2) mounted on the frame (1), and an upper cover (3) mounted on the base (2), characterized in that: The device includes a hydraulic opening and closing device (4) and a locking device (5). The hydraulic opening and closing device (4) includes a hydraulic cylinder (41) mounted on the frame (1) via a U-shaped fixing plate (44), a piston rod (42) mounted inside the hydraulic cylinder (41), and an arc-shaped ear plate (43) on the upper cover (3). The arc-shaped ear plate (43) is fixed to the arc surface of the upper cover (3) and connected to the piston rod (42) via the U-shaped fixing plate (44). Side ear plates (45) are provided on the left and right sides of the arc-shaped ear plate (43). The locking device (5) includes a fixed gear plate ( 51) Two pressure plates (52), a fixed shaft (53), and a handle (54). The fixed gear plate (51) is welded to the side ear plate (45). The two pressure plates (52) are set on the left and right sides of the side ear plate (45) and welded to the upper part of the fixed bracket (6) on the frame (1). The side ear plate (45) is connected to the upper part of the fixed bracket (6) on the frame (1) through the locking device (5). The lower part of the fixed bracket (6) is attached to and fixed on the frame (1) along the arc surface of the base (2). The locking device (5) can control the opening and closing angle of the top cover (3).

2. The hydraulic opening and closing device for a horizontal high-power mixer according to claim 1, characterized in that: The fixed gear plate (51), the two pressure plates (52) and the side ear plate (45) are all provided with coaxial round holes. The fixed shaft (53) passes through the round hole on the upper part of the fixed bracket, the round hole on the pressure plate and the round hole on the side ear plate from left to right. The left end of the fixed shaft (53) is a flat end with a flat structure. A round hole is provided on the flat end. The handle (54) is hinged to the round hole through a short shaft.

3. The hydraulic opening and closing device for a horizontal high-power mixer according to claim 2, characterized in that: The contact surfaces of the fixed toothed disc (51) and the pressure plate (52) are provided with meshing teeth. When the handle (54) is pressed down, the meshing teeth of the fixed toothed disc (51) and the pressure plate (52) are forced to mesh and lock.

4. The hydraulic opening and closing device for a horizontal high-power mixer according to claim 3, characterized in that: The U-shaped fixing plate (44) has a threaded hole on its side, which is threaded to the piston rod (42).

5. The hydraulic opening and closing device for a horizontal high-power mixer according to claim 1, characterized in that: A bellows telescopic protective sleeve is provided on the piston rod (42).

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