Low temperature pneumatic hoist

Abstract

The utility model relates to hoisting equipment technical field discloses a low temperature pneumatic hoist, including the gourd body, the gourd body one side is connected with the pneumatic motor still includes: the shell, with the gourd body detachable connection, the shell will the part of pneumatic motor that gourd body projects cover, electric auxiliary heating component, including setting up in the shell a plurality of heating sheet, the shell inner wall surface is provided with the heat conduction component, the heat conduction component links to each other with heating sheet, to define the heat conduction interval in the shell inner wall surface, wherein, the area of the heat conduction interval covering the outside lateral wall of pneumatic motor is not less than half of the outside lateral wall area of pneumatic motor. Can realize the preheating efficiency of improvement to pneumatic hoist, guarantees the efficient work of pneumatic hoist under the low temperature environment.

Description

Technical Field

[0001] This utility model relates to the field of lifting equipment technology, and in particular to a cryogenic pneumatic hoist. Background Technology

[0002] A pneumatic hoist is a device that uses compressed air as a power source to lift heavy objects. It distributes the air source through a valve box and delivers it to the pneumatic motor. Because it does not produce sparks during operation and has explosion-proof function, it is often used in industries such as shipbuilding, chemical industry and oil storage.

[0003] In extremely cold regions, pneumatic motors are typically preheated to ensure normal operation, maintaining a working environment between -20°C and 70°C. However, existing preheating structures often involve directly installing electric auxiliary heating elements at the bottom or side of the motor, resulting in uneven preheating area distribution and reduced preheating efficiency. Therefore, this application proposes a low-temperature pneumatic hoist to address these issues. Utility Model Content

[0004] The purpose of this utility model is to provide a low-temperature pneumatic hoist to solve the problems existing in the prior art, thereby improving the preheating efficiency of the pneumatic hoist and ensuring its efficient operation in low-temperature environments.

[0005] To achieve the above objectives, this utility model provides the following solution: This utility model provides a low-temperature pneumatic hoist, including a hoist body, a pneumatic motor connected to one side of the hoist body, and further including: The outer casing is detachably connected to the hoist body, and the outer casing covers the portion of the pneumatic motor that extends out of the hoist body. An electric auxiliary heating assembly includes a plurality of heating elements disposed within the housing. A heat-conducting component is disposed on the inner wall of the housing, and the heat-conducting component is connected to the heating elements to define a heat-conducting zone on the inner wall of the housing. The area of ​​the heat-conducting zone covering the outer wall of the pneumatic motor is not less than half of the area of ​​the outer wall of the pneumatic motor.

[0006] Preferably, the bottom of the outer casing is provided with a through groove, the projection of the through groove along the vertical direction covers the pneumatic motor, a cover plate is snapped into the through groove, and the cover plate is detachably connected to the hoist body.

[0007] Preferably, the thermally conductive component includes: The copper sheet is embedded in a groove on the inner side wall of the outer casing, and the remaining part of the outer periphery of the pneumatic motor away from the cover plate is covered with the copper sheet. The heating element is in contact with the side of the copper sheet away from the pneumatic motor.

[0008] Preferably, at least three heating elements are provided, and a plurality of the heating elements are evenly distributed on the remaining side of the outer periphery of the pneumatic motor away from the cover plate.

[0009] Preferably, a controller is fixedly connected to the side of the outer shell away from the hoist body, and several heating elements are connected to the controller via wires. The controller is used to control the heating elements to be powered on or off.

[0010] Preferably, a groove is formed in the center of the cover plate, the groove extends out of the cover plate in a direction close to the hoist body, and an insulation pad is fixed to the top surface of the cover plate, the insulation pad being in contact with the bottom surface of the pneumatic motor.

[0011] Preferably, a locking block is fixed to the side of the cover plate away from the hoist body, a locking groove is opened on the inner side of the bottom of the outer shell, the locking block is engaged with the locking groove, a connecting plate is fixed to the bottom surface of the hoist body, a through hole is opened on the connecting plate, and a threaded hole is opened on the side of the cover plate near the connecting plate, the threaded hole and the through hole are connected in a horizontal direction.

[0012] Preferably, a first lifting lug is fixedly connected to the top surface of the gourd body, and a second lifting lug is fixedly connected to the top surface of the outer shell. The first lifting lug and the second lifting lug are respectively provided with openings, and the two openings are connected to each other in the horizontal direction.

[0013] The present invention discloses the following technical effects: This invention features a detachable outer shell attached to the hoist body, which encloses the pneumatic motor. Several heating elements are installed inside the shell to preheat the motor. A heat-conducting component connected to the heating elements transfers heat to a heat-conducting area, expanding the heating surface. This heat-conducting area covers at least half of the outer wall of the pneumatic motor, improving the preheating efficiency of the hoist. This allows the pneumatic motor to reach normal operating temperature in extremely cold regions through preheating, ensuring operational efficiency in low-temperature environments. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a diagram showing the connection relationship between the outer shell and the gourd body in this utility model; Figure 2 In this utility model Figure 1A magnified view of a section at point A in the middle; Figure 3 This is a diagram showing the connection relationship between the cover plate and the outer shell in this utility model; Figure 4 In this utility model Figure 2 A magnified view of a section at point B in the middle; Figure 5 This is a diagram showing the positional relationship between the outer shell and the pneumatic motor in this utility model; Figure 6 This is a diagram showing the connection relationship between the copper sheet and the heating element in this utility model; Figure 7 This is a diagram showing the connection relationship between the thermal insulation pad and the cover plate in this utility model; The components include: 1. Hoist body; 2. Pneumatic motor; 3. Outer shell; 4. Heating element; 5. Cover plate; 6. Copper sheet; 7. Controller; 8. Insulation pad; 9. Locking block; 10. Connecting plate; 11. Threaded hole; 12. First lifting lug; 13. Second lifting lug. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0018] Reference Figures 1-7 This utility model provides a low-temperature pneumatic hoist, including a hoist body 1, a pneumatic motor 2 connected to one side of the hoist body 1, and further including: The outer shell 3 is detachably connected to the hoist body 1, and the outer shell 3 covers the part of the pneumatic motor 2 that extends out of the hoist body 1. The electric auxiliary heating assembly includes several heating elements 4 disposed inside the housing 3. A heat-conducting component is disposed on the inner wall of the housing 3. The heat-conducting component is connected to the heating elements 4 to define a heat-conducting zone on the inner wall of the housing 3. The area of ​​the heat-conducting zone covering the outer wall of the pneumatic motor 2 is not less than half of the area of ​​the outer wall of the pneumatic motor 2.

[0019] This invention features a detachable outer shell 3 attached to the hoist body 1, which encloses the pneumatic motor 2. Several heating elements 4 are installed inside the outer shell 3 to preheat the pneumatic motor 2. Heat is transferred to the heat-conducting area via a heat-conducting component connected to the heating elements 4, thus expanding the heating area. This heat-conducting area covers at least half of the outer wall of the pneumatic motor 2, improving the preheating efficiency of the pneumatic hoist. This allows the pneumatic motor 2 to reach normal operating temperature in extremely cold regions through preheating, ensuring operational efficiency in low-temperature environments.

[0020] In addition, the outer shell 3 can be detached from the gourd body 1. Under normal operating temperature, the outer shell 3 can be detached.

[0021] Specifically, extremely cold regions generally refer to areas with temperatures below -40 degrees Celsius. Here, it refers to the temperature environment that can affect the normal operation of pneumatic hoists.

[0022] Furthermore, a through groove is provided at the bottom of the outer casing 3. The projection of the through groove along the vertical direction covers the pneumatic motor 2. A cover plate 5 is snapped into the through groove. The cover plate 5 is detachably connected to the hoist body 1.

[0023] By opening a through groove at the bottom of the outer casing 3, and the projection of the through groove can cover the pneumatic motor 2, when disassembling and assembling the outer casing 3, the pneumatic motor 2 can simply be slid into the outer casing 3 along the through groove. After the outer casing 3 covers the top of the pneumatic motor 2, the cover plate 5 is snapped into the through groove. Finally, the cover plate 5 is connected to the hoist body 1, which facilitates the disassembly and assembly of the outer casing 3.

[0024] Furthermore, the thermally conductive components include: The copper sheet 6 is embedded in the groove on the inner side wall of the outer shell 3. The remaining part of the outer periphery of the pneumatic motor 2 away from the cover plate 5 is covered with the copper sheet 6. The heating element 4 is in contact with the side of the copper sheet 6 away from the pneumatic motor 2.

[0025] By embedding and fixing the copper sheet 6 to the inner wall of the outer casing 3, the copper sheet 6 can cover the outer periphery of the pneumatic motor 2. The heating element 4 contacts the copper sheet 6, and when the heating element 4 heats, the copper sheet 6 can diffuse and transfer heat, thereby preheating the pneumatic motor 2 over a wide area.

[0026] Furthermore, at least three heating elements 4 are provided, and several heating elements 4 are evenly distributed on the remaining side of the outer periphery of the pneumatic motor 2 away from the cover plate 5.

[0027] By setting at least three heating elements 4, the pneumatic motor 2 can be targeted to heat the other three sides except the bottom surface. Specifically, the bottom end of the pneumatic motor 2 is connected to a valve box structure (not marked in the figure) for connecting to and distributing air. Therefore, a through groove is opened at the bottom end of the outer shell 3 to make room for the valve box structure. By using the heating elements 4 distributed on the other three sides except the bottom surface of the pneumatic motor 2, combined with the diffusion of the preheating area of ​​the heating elements 4 by the copper sheet 6, more than half of the outer wall area of ​​the pneumatic motor 2 can be preheated.

[0028] Furthermore, a controller 7 is fixedly connected to the side of the outer shell 3 away from the hoist body 1, and several heating elements 4 are connected to the controller 7 through wires. The controller 7 is used to control the heating elements 4 to be powered on or off.

[0029] In this technical solution, the controller 7 includes, but is not limited to, a temperature sensor, a solid-state relay, and a temperature controller 7. The heating element 4 is connected to the power supply through wires and the controller 7. When the heating element 4 needs to be energized for heating, it is controlled by the controller 7. The above-mentioned energization control principle of the heating element 4 is existing technology.

[0030] Furthermore, a wire groove is provided in the center of the cover plate 5, and the wire groove extends out of the cover plate 5 in the direction close to the hoist body 1. An insulation pad 8 is fixed to the top surface of the cover plate 5, and the insulation pad 8 is in contact with the bottom surface of the pneumatic motor 2.

[0031] By opening a groove in the center of the cover plate 5, the pipeline on the bottom surface of the pneumatic motor 2 can be easily pulled out from the groove. Furthermore, by fixing the insulation pad 8 to the top surface of the cover plate 5, and by having the insulation pad 8 contact the bottom surface of the pneumatic motor 2, the gap between the cover plate 5 and the pneumatic motor 2 is sealed to form an insulation cavity. Under the heating action of the heating element 4 and the copper sheet 6, the preheating efficiency of the pneumatic motor 2 is improved.

[0032] Furthermore, a locking block 9 is fixedly connected to the side of the cover plate 5 away from the hoist body 1, and a locking groove is opened on the inner side of the bottom of the outer shell 3. The locking block 9 is engaged with the locking groove. A connecting plate 10 is fixedly connected to the bottom surface of the hoist body 1. A through hole is opened on the connecting plate 10. A threaded hole 11 is opened on the side of the cover plate 5 near the connecting plate 10. The threaded hole 11 and the through hole are connected in the horizontal direction.

[0033] When installing the cover plate 5, first engage the locking block 9 with the locking slot, and then, after aligning the positions of the threaded hole 11 and the through hole, fix the cover plate 5 to the hoist body 1 by threading the bolt through the connecting plate 10 and connecting it to the cover plate 5.

[0034] Furthermore, a first lifting lug 12 is fixedly connected to the top surface of the gourd body 1, and a second lifting lug 13 is fixedly connected to the top surface of the outer shell 3. Openings are respectively provided on the first lifting lug 12 and the second lifting lug 13, and the two openings are connected in a corresponding manner along the horizontal direction.

[0035] After the first lifting lug 12 and the second lifting lug 13 are aligned, the two openings are connected. The first lifting lug 12 and the second lifting lug 13 are connected and fixed by bolts and nuts, so as to realize the connection and fixation between the outer shell 3 and the hoist body 1.

[0036] This utility model provides a working principle for a low-temperature pneumatic hoist: First, the outer shell 3 is placed on the pneumatic motor 2, and the first lifting lug 12 and the second lifting lug 13 are aligned. The first lifting lug 12 and the second lifting lug 13 are fixed together with bolts and nuts. Then, the locking block 9 of the cover plate 5 is inserted into the locking groove. The end of the cover plate 5 away from the locking block 9 is raised so that the through hole on the connecting plate 10 is aligned with the threaded hole 11. The bolt is passed through the connecting plate 10 and threadedly connected to the cover plate 5. The heat insulation pad 8 on the top surface of the cover plate 5 is used to heat and seal the inner cavity of the outer shell 3 and the pneumatic motor 2. The heating element 4 is preheated by energizing it. The heating effect of several heating elements 4 is transferred to the outer wall of the pneumatic motor 2 by the copper sheet 6, so as to achieve large-scale preheating of the pneumatic motor 2 and ensure efficient operation in extremely cold temperatures.

[0037] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0038] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A low-temperature pneumatic hoist, comprising a hoist body (1), wherein a pneumatic motor (2) is connected to one side of the hoist body (1), characterized in that, Also includes: The outer shell (3) is detachably connected to the gourd body (1), and the outer shell (3) covers the part of the pneumatic motor (2) that extends out of the gourd body (1); The electric auxiliary heating assembly includes a plurality of heating elements (4) disposed inside the housing (3). A heat-conducting component is disposed on the inner wall surface of the housing (3). The heat-conducting component is connected to the heating elements (4) to define a heat-conducting zone on the inner wall surface of the housing (3). The area of ​​the heat-conducting zone covering the outer wall of the pneumatic motor (2) is not less than half of the area of ​​the outer wall of the pneumatic motor (2).

2. The low-temperature pneumatic hoist according to claim 1, characterized in that: The bottom end of the outer shell (3) is provided with a through groove, the projection of the through groove along the vertical direction covers the pneumatic motor (2), and a cover plate (5) is snapped into the through groove. The cover plate (5) is detachably connected to the hoist body (1).

3. The low-temperature pneumatic hoist according to claim 2, characterized in that, The thermally conductive component includes: The copper sheet (6) is embedded in the groove on the inner wall of the outer shell (3), and the remaining part of the outer periphery of the pneumatic motor (2) away from the cover plate (5) is covered with the copper sheet (6). The heating element (4) is in contact with the side of the copper sheet (6) away from the pneumatic motor (2).

4. The low-temperature pneumatic hoist according to claim 2, characterized in that: At least three heating elements (4) are provided, and several heating elements (4) are evenly distributed on the remaining side of the outer periphery of the pneumatic motor (2) away from the cover plate (5).

5. The low-temperature pneumatic hoist according to claim 1, characterized in that: A controller (7) is fixedly connected to the side of the outer shell (3) away from the hoist body (1). Several heating elements (4) are connected to the controller (7) through wires. The controller (7) is used to control the heating elements (4) to be powered on or off.

6. The low-temperature pneumatic hoist according to claim 2, characterized in that: A groove is provided in the center of the cover plate (5). The groove extends out of the cover plate (5) in a direction close to the hoist body (1). An insulation pad (8) is fixed to the top surface of the cover plate (5). The insulation pad (8) is in contact with the bottom surface of the pneumatic motor (2).

7. The low-temperature pneumatic hoist according to claim 2, characterized in that: A locking block (9) is fixed to the side of the cover plate (5) away from the hoist body (1). A slot is opened on the inner side of the bottom of the outer shell (3). The locking block (9) is engaged with the slot. A connecting plate (10) is fixed to the bottom surface of the hoist body (1). A through hole is opened on the connecting plate (10). A threaded hole (11) is opened on the side of the cover plate (5) near the connecting plate (10). The threaded hole (11) and the through hole are connected in the horizontal direction.

8. The low-temperature pneumatic hoist according to claim 1, characterized in that: The top surface of the gourd body (1) is fixed with a first lifting lug (12), and the top surface of the outer shell (3) is fixed with a second lifting lug (13). The first lifting lug (12) and the second lifting lug (13) are respectively provided with openings, and the two openings are connected in a horizontal direction.

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