A spring assist mechanism for opening the upper cover of a horizontal screw centrifuge

Abstract

The utility model discloses a spring assist mechanism for opening the upper cover of a horizontal screw centrifuge. The upper cover hinge middle plate is connected to one side of the upper cover, and two first torque spring support feet for limiting are arranged on the upper cover hinge middle plate. The lower cover hinge seat is arranged on the lower cover, and the lower cover hinge seat is provided with a second torque spring support foot seat. The upper end support foot of the torque spring cooperates with the first torque spring support foot seat, and the lower end support foot of the torque spring cooperates with the second torque spring support foot seat in limiting position. A center positioning shaft is passed through the middle of the torque spring, and a torque spring shaft sleeve is sleeved on the outside of the center positioning shaft. The torque spring shaft sleeve and the two ends of the center positioning shaft are fixed on the center axis buckle plate, and a handle is arranged on the other side of the upper cover. The utility model enables the horizontal screw centrifuge to open the cover completely without the aid of any other tools, and only one adult is required to fully open the cover and maintain the cover open. This greatly simplifies the on-site working conditions and personnel configuration, and greatly reduces the comprehensive cost of routine maintenance of the horizontal screw centrifuge.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifuges, in particular to a spring assist mechanism for opening an upper cover of a horizontal screw centrifuge. Background Art

[0002] Opening the upper cover is a frequently used task in the maintenance of the horizontal screw centrifuge. Usually, the cover needs the help of a lifting device such as a crane to reasonably carry out the operation. In order to reduce external force assistance when opening the upper cover as much as possible or facilitate on-site operations in places where it is inconvenient to set up a lifting device such as outdoors, the above problems can be effectively solved by adding a power-assisting mechanism to the upper cover component. Different from the early direct lifting cover and the unassisted hinged cover mechanism, the utility model provides a more convenient, economical and safe way for the inspection and maintenance of the horizontal screw centrifuge. Utility Model Content

[0003] In view of the shortcomings of the prior art, the utility model aims to provide a spring assist mechanism for opening the upper cover of a decanter centrifuge, so that when opening the cover of the decanter centrifuge, only one adult is required to fully open the cover and maintain the cover open without the aid of any other tools. This greatly simplifies the on-site working conditions and personnel configuration, and greatly reduces the comprehensive cost of routine maintenance of the decanter centrifuge.

[0004] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical scheme: a spring assist mechanism for opening the upper cover of a horizontal screw centrifuge, comprising an upper cover hinge middle plate, a lower cover hinge seat, a torque spring, a center axis buckle plate, a torque spring sleeve and a center positioning shaft, the upper cover hinge middle plate is connected to one side of the upper cover, two first torque spring support feet for limiting are arranged on the upper cover hinge middle plate, the lower cover hinge seat is arranged on the lower cover, the lower cover hinge seat is provided with a second torque spring support foot seat, the upper end support foot of the torque spring cooperates with the first torque spring support foot seat, the lower end support foot of the torque spring cooperates with the second torque spring support foot seat for limiting, a center positioning shaft is passed through the middle of the torque spring, a torque spring sleeve is sleeved on the outside of the center positioning shaft, the torque spring sleeve and both ends of the center positioning shaft are fixed on the center axis buckle plate, and a handle is arranged on the other side of the upper cover.

[0005] Preferably, the first torque spring support foot and the second torque spring support foot are circular hole structures.

[0006] Preferably, the torque spring comprises two torque springs with opposite rotation directions, and the two torque springs are respectively arranged on both sides of the middle plate of the upper cover shell hinge.

[0007] The utility model has the following beneficial effects:

[0008] The utility model is different from the pneumatic spring that acts as a linear connecting rod on the end face of the cover, and the space occupied and the layout are greatly simplified. In addition, except for the high plane processing cost, the overall parts are inexpensive and the accessories are highly versatile. Finally, as a reliable standard part, the torque spring has extremely high structural stability and safety, which provides a good guarantee for reducing later maintenance and safety of operations after opening the cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The utility model is described in detail below with reference to the accompanying drawings and specific implementation methods;

[0010] Figure 1 It is a schematic diagram of the structure of the utility model;

[0011] Figure 2 for Figure 1 Schematic diagram of direction A (partial). DETAILED DESCRIPTION

[0012] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0013] Reference Figure 1-2 , this specific embodiment adopts the following technical scheme: a spring assist mechanism for opening the upper cover of a horizontal screw centrifuge, comprising an upper cover hinge middle plate 1, a lower cover hinge seat 2, a torque spring 3, a central axis buckle plate 4, a torque spring sleeve 5 and a center positioning shaft 6, the upper cover hinge middle plate 1 is connected to one side of the upper cover 8, two first torque spring support seats 11 for limiting are arranged on the upper cover hinge middle plate 1, the lower cover hinge seat 2 is arranged on the lower cover 9, the lower cover hinge seat 2 is provided with a second torque spring support seat 21, the upper end support foot of the torque spring 3 cooperates with the first torque spring support seat 11, the lower end support foot of the torque spring 3 cooperates with the second torque spring support seat 21 for limiting, a center positioning shaft 6 is passed through the middle of the torque spring 3, a torque spring sleeve 5 is sleeved on the outside of the center positioning shaft 6, the torque spring sleeve 5 and the two ends of the center positioning shaft 6 are fixed on the central axis buckle plate 4, and a handle 7 is arranged on the other side of the upper cover 8.

[0014] It is worth noting that the first torque spring support seat 11 and the second torque spring support seat 21 are circular hole structures.

[0015] In addition, the torque spring 3 is composed of two torque springs with opposite rotation directions, and the two torque springs are respectively arranged on both sides of the upper cover shell hinge middle plate 1.

[0016] In this specific embodiment, the hinge middle plate connected to the upper cover shell has two round holes on it for limiting the position of the torque spring foot; the lower cover shell hinge seat 2 also has two round holes for limiting the top position of the spring; 3. Two torque springs 3 with opposite rotation directions serve as the power source of the assist mechanism; the central axis buckle plate 4 is used to fix the spring sleeve and the hinge center axis; the spring sleeve 5 is used to locate the torque spring axis position; the central positioning axis 6 is used to locate the hinge movement center; the handle 7 is used as the position for human power implementation when the upper cover shell is opened; the above-mentioned components form a mechanism that always keeps the torque spring under pressure and stores the spring potential energy when the upper and lower covers are closed. When the cover is opened, the torque spring releases the spring potential energy, and the power is transmitted to the two feet to respectively open the upper cover shell hinge middle plate and the lower cover shell hinge seat in a flipping form, thereby driving the entire upper cover shell to rotate and open with the central positioning axis.

[0017] This specific implementation method uses the characteristics of torsion springs that can store and release angular energy to achieve this function. The use of torsion springs simplifies the design and does not require a certain installation space like other springs; it is easy to operate and minimizes external force assistance; it is safer, and the main torsion spring function reduces the processing requirements for other ribs on the base, while greatly improving safety performance.

[0018] 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 spring assist mechanism for opening the upper cover of a horizontal screw centrifuge, characterized in that: The invention comprises an upper cover shell hinge middle plate (1), a lower cover shell hinge seat (2), a torque spring (3), a center axis buckle plate (4), a torque spring shaft sleeve (5) and a center positioning shaft (6); the upper cover shell hinge middle plate (1) is connected to one side of the upper cover shell (8); two first torque spring support feet (11) for limiting are arranged on the upper cover shell hinge middle plate (1); the lower cover shell hinge seat (2) is arranged on the lower cover shell (9); and the lower cover shell hinge seat (2) is provided with a second torque spring support foot (21), the upper end support leg of the torque spring (3) cooperates with the first torque spring support leg seat (11), the lower end support leg of the torque spring (3) cooperates with the second torque spring support leg seat (21) in a limiting manner, a center positioning shaft (6) is passed through the middle of the torque spring (3), a torque spring shaft sleeve (5) is sleeved on the outside of the center positioning shaft (6), the two ends of the torque spring shaft sleeve (5) and the center positioning shaft (6) are fixed on the middle shaft buckle plate (4), and a handle (7) is arranged on the other side of the upper cover shell (8).

2. A spring assist mechanism for opening the upper cover of a horizontal screw centrifuge according to claim 1, characterized in that: The first torque spring support foot (11) and the second torque spring support foot (21) are circular hole structures.

3. A spring assist mechanism for opening the upper cover of a horizontal screw centrifuge according to claim 1, characterized in that: The torque spring (3) is composed of two torque springs with opposite rotation directions, and the two torque springs are respectively arranged on both sides of the upper cover shell hinge middle plate (1).

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