General placement tool for small parts of tower crane

Abstract

The application discloses a general placement tool for small parts of a tower crane, which comprises a frame body for supporting the transmission of small parts of a tower crane, the frame body is composed of one or more frame body units, a plurality of frame body units are horizontally connected in series, the frame body unit comprises a chassis and a vertical column arranged along the side edges of the front and rear ends of the chassis and spaced in the transmission direction, the chassis of adjacent frame body units is fixedly connected to each other through the front and rear side walls, a top beam rod is arranged horizontally on the top end of the vertical column on the two side edges of the chassis and in the transmission direction, an upper hanging support is arranged on the top beam rod above each chassis on the two sides, and a lower hanging support is arranged on the vertical column on the two side edges of the chassis and on the side wall of the vertical column on each chassis. The tool can be quickly installed, is stable in structure, has high hanging capacity, can set multiple small part hanging points, and thus the powder spraying work efficiency is improved and the powder spraying and drying treatment rhythm is accelerated.

Description

Technical Field

[0001] This invention belongs to the field of mechanical processing technology, and in particular relates to a universal placement fixture for powder coating of small tower crane parts. Background Technology

[0002] Tower crane standard parts are typically welded together from multiple standard sections and various auxiliary components (commonly known as "small components" or "small parts"). Before being welded into standard parts, these small parts need to undergo powder coating and high-temperature baking processes to improve their overall performance, such as wear resistance and corrosion resistance. However, the current common practice in the powder coating and high-temperature baking process is to manually carry or separately suspend them on a conveyor line to the powder coating or baking room for powder coating or high-temperature baking. This process is not only space-consuming, time-consuming, and labor-intensive, but also prone to bumps and knocks, which can cause cumulative damage to the small parts and is not conducive to long-term use. Summary of the Invention

[0003] The purpose of this invention is to provide a universal placement fixture for powder coating of small parts on tower cranes. This fixture allows for rapid installation, has a stable structure, strong load-bearing capacity, and can be configured with multiple hanging points for small parts, thereby improving powder coating efficiency and accelerating the powder coating and drying process. To achieve the above objective, this invention employs the following technical effects:

[0004] According to one aspect of the present invention, a universal placement fixture for powder coating of small tower crane parts is provided. The placement fixture includes a frame for supporting and conveying small tower crane parts. The frame is composed of one or more frame units connected horizontally in series. Each frame unit includes a base frame and uprights spaced apart along the conveying direction on the side edges of the front and rear ends of the base frame. The bottoms of adjacent frame units are fixedly connected to each other through the front and rear side walls of the base frame. Top beams are horizontally arranged at the top of the uprights on both sides of the base frame and along the conveying direction. Upper suspension supports are provided on the top beams above each side of the base frame. Lower suspension supports are provided on the side walls of the uprights on both sides of the base frame.

[0005] In a further preferred embodiment of the above scheme, the lower suspension support includes horizontal support blocks disposed on the front and rear side walls of the column, and a suspension limiting notch is provided on the horizontal support blocks and between the horizontal support blocks and the side walls of the column.

[0006] In a further preferred embodiment of the above scheme, a suspension crossbar is provided between the columns on the same side of the base frame and between the horizontal support blocks at the same horizontal height. The lower side walls at both ends of the suspension crossbar are provided with limiting slots that match the suspension limiting notch.

[0007] In a further preferred embodiment of the above scheme, limit pin holes extending vertically are provided at both ends of the suspension crossbar and on the outside of the limit slot, and a rotatable limit connector inserted into the limit pin hole is provided on the lower outside of the horizontal support block.

[0008] In a further preferred embodiment of the above scheme, the column is a hollow tube shape, and a slide opening for the horizontal support block to slide vertically up and down is provided on the side wall of the column. A vertical slider is provided in the slide opening and slides up and down along the inside of the column. The horizontal support block is horizontally set inside the column through the vertical slider. A rotatable limiting connector that is inserted into a limiting pin hole is provided on the lower outer side of the upper and lower ends of the slide opening.

[0009] In a further preferred embodiment of the above scheme, spring posts are provided on the outer walls of both sides of the vertical slider, and limiting through holes of different heights are provided on the side walls of the columns on both sides of the slide opening. The vertical slider is inserted into the limiting through holes through the spring posts.

[0010] In a further preferred embodiment of the above scheme, the limiting connector includes a limiting support block and a plug rod. The lower end of the limiting support block is rotatably connected to the side wall of the column via a support shaft. The top end of the limiting support block has a transverse support block extending horizontally above a limiting pin hole. A plug rod that can extend into the limiting pin hole is provided vertically along one side of the free end of the transverse support block.

[0011] In a further preferred embodiment of the above scheme, a horizontal suspension support block is provided on the side wall of the top beam rod on one or both sides of the upper suspension support member, and a suspension support notch is provided on the upper surface of the free end side of the horizontal suspension support block.

[0012] In a further preferred embodiment of the above scheme, the base frame is formed by welding square pipes together, the top beam is a round or square pipe, the beginning and end ends of the base frames of adjacent frame units are connected to each other by lower connectors, and the top beams of adjacent frame units are connected to each other by upper connectors.

[0013] In summary, the present invention adopts the above technical solution, and the present invention has the following technical effects:

[0014] The placement fixture of this invention is simple, convenient, and highly versatile. It can be used to hang powder coating and dry small parts of different tower crane products. Moreover, the fixture can be quickly installed, has a stable structure, strong load-bearing capacity, and can be set with multiple hanging points for small parts, thereby improving the efficiency of powder coating, accelerating the pace of powder coating and drying, enabling batch hanging and high-temperature baking, improving the utilization rate of powder coating and saving energy, and achieving the goal of cost reduction and efficiency improvement. The fixture of this invention can also complete different process flows for processing small parts of tower cranes, which not only improves the utilization efficiency of the fixture, but also makes the fixture more practical and convenient to use. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a universal placement fixture for powder coating of small tower crane parts according to the present invention;

[0016] Figure 2 This is a schematic diagram of the frame unit of the present invention;

[0017] Figure 3 This is a schematic diagram of the installation structure of the lower suspension support component of the present invention;

[0018] Figure 4 This is a schematic diagram of the installation and connection structure between the lower suspension support and the suspension crossbar of the present invention;

[0019] Figure 5 This is a schematic diagram of another installation and connection embodiment of the lower suspension support of the present invention;

[0020] In the attached diagram, there is a frame 1, a frame unit 10, a lower connector 11, an upper connector 12, a base frame 100, a column 101, a top beam 102, an upper suspension support 103, a lower suspension support 104, a horizontal suspension support block 105, a suspension support notch 106, a connector tube 107, and a reinforcing rib 108.

[0021] Slide opening 1010, vertical slider 1011, spring column 1012, limiting through hole 1013, horizontal support block 1040, suspension limiting notch 1041, suspension crossbar 1042, limiting bayonet 1043, limiting pin hole 1044, limiting connector 1045, limiting support block 1045a, insert rod 1045b, transverse support block 1045d, support shaft 1045c. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, it should be noted that many details listed in the specification are merely to provide the reader with a thorough understanding of one or more aspects of the invention, and these aspects of the invention can be implemented even without these specific details.

[0023] Combination Figure 1 and Figure 2As shown, according to the present invention, a universal placement fixture for powder coating of small tower crane parts includes a frame 1 for supporting and conveying small tower crane parts. The length, width, and height of the frame 1 are not less than 4.5m × 1.8m × 2m. Removable casters are provided at the bottom of the frame 1. The frame 1 is composed of one or more frame units 10, which are horizontally connected in series. Each frame unit 10 includes a base frame 100 and uprights 101 spaced apart along the conveying direction on the side edges of the front and rear ends of the base frame 100. The bottoms of adjacent frame units 10 are connected by the front and rear side walls of the base frame 100. The base frame 100 is fixedly connected. A top beam rod 102 is horizontally arranged at the top of the column 101 on both sides of the base frame 100 and along the conveying direction. An upper suspension support 103 is arranged on the top beam rod 102 on both sides of the base frame 100. The upper suspension support 103 is an inverted U-shaped rod structure. The two ends of the U-shaped rod structure are fixed to the top beam rod 102. The U-shaped part of the U-shaped rod structure extends vertically upward from the top beam rod 102. The column 101 is arranged on both sides of the base frame 100. A lower suspension support 104 is arranged on the side wall of the column 101 on each base frame 100. A detachable universal wheel is arranged below the base frame 100. A horizontal suspension support block 105 is provided on the side wall of the top beam 10 on one or both sides of the upper suspension support 103. A suspension support notch 106 is provided on the upper surface of the free end of the horizontal suspension support block 105. The frame 1 is suspended on the conveyor suspension line in the powder spraying room using hooks. At the same time, small parts are suspended on the top beam 102 and the lower suspension support 104 using small part powder spraying hooks. The frame 1 enters the powder spraying room with the powder spraying line gantry to perform powder spraying operations on the small parts. Alternatively, the frame 1 can slide in the powder spraying room using casters. The powder spraying line gantry can be used to perform powder spraying operations on the small parts suspended on the frame 1. Multiple small parts can be suspended on the top beam 102 and the lower suspension support 104 for simultaneous powder spraying operations.

[0024] In this embodiment of the invention, the lower suspension support 104 includes horizontal support blocks 1040 disposed on the front and rear side walls of the column 101. A suspension limiting notch 1041 is provided on the horizontal support block 1040 and between the horizontal support block 1040 and the side wall of the column 101. The hook of the small part is suspended on the suspension limiting notch of the horizontal support block 1040 to prevent the hook of the small part from slipping off the horizontal support block 1040.

[0025] In this embodiment of the invention, a suspension crossbar 1042 is provided between the columns 101 on the same side of the base frame 100 and between the horizontal support blocks 1040 at the same horizontal height. The lower sidewalls at both ends of the suspension crossbar 1042 are provided with limiting slots 1043 that fit into the suspension limiting notches 1041. At both ends of the suspension crossbar 1042 and outside the limiting slots 1043, vertically penetrating limiting pin holes 1044 are provided. A rotatable pin is provided below the outer side of the horizontal support block 1040 and inserted into the limiting pin hole 1044. When a larger number of small parts need to be suspended for powder coating operations, a suspension crossbar 1042 is set between adjacent columns 101 and horizontal support blocks 1040 at the same height. The limiting slots 1043 at both ends of the suspension crossbar 1042 are engaged with the suspension limiting notches 1041. In order to prevent the suspension crossbar 1042 from loosening or falling, the limiting pin 1045 is inserted into the limiting pin holes 1044 at both ends of the suspension crossbar 1042, thereby fastening and fixing the suspension crossbar 1042 to the column 101.

[0026] In this embodiment of the invention, the column 101 is a hollow tube. A slide opening 1010 for the horizontal support block 1040 to slide vertically up and down is provided on the side wall of the column 101. A vertical slider 1011 that slides up and down along the inside of the column 101 is provided in the slide opening 1010. The horizontal support block 1040 is horizontally positioned inside the column 101 via the vertical slider 1011. A rotatable limiting connector 1045, which is inserted into a limiting pin hole 1044, is provided below the outer sides of the upper and lower ends of the slide opening 1010. Spring pillars 1012 are provided on both outer walls of the vertical slider 1011. Limiting through holes 1013 of different heights are provided on the side walls of the column 101 on both sides of the slide opening 1010. The vertical slider 1011 is inserted through the spring pillars 1012. To adjust the height of the horizontal support block 1040 or the suspension crossbar 1042, a vertical slide opening 1010 is provided on the side wall of the column 101 within the limiting through hole 1013. This allows the horizontal support block 1040 to slide on the column 101 via the vertical slider 1011. When the horizontal support block 1040 is pushed upward, the vertical slider 1011 slides upward within the column 101, causing the horizontal support block 1040 to slide up and down. When the desired height is reached, the spring post on the side wall of the vertical slider 1011 is inserted into the limiting pin hole 1044, thereby restricting the vertical slider 1011 to the column 101, completing the adjustment of the horizontal support block 1040. Then, the suspension crossbar 1042 is installed on the horizontal support block 1040.

[0027] In embodiments of the present invention, such as Figure 2 , Figure 3 , Figure 4As shown, the limiting connector 1045 includes a limiting support block 1045a and a plug rod 1045b. The lower end of the limiting support block 1045a is rotatably connected to the side wall of the column 101 via a support shaft 1045c. The top of the limiting support block 1045a has a horizontal support block 1045d above a horizontally extending limiting pin hole 1044. A rod hole (not shown) is provided at the free end of the horizontal support block 1045d. A plug rod 1045b is vertically inserted on one side of the free end of the horizontal support block 1045d and can extend into the limiting pin hole 1044. 1045b extends into the limiting pin hole 1044 through the rod hole on the free end of the transverse support block 1045d. After the suspension crossbar 1042 is installed on the horizontal support block 1040, the limiting support block 1045a is rotated vertically upward along the support shaft 1045c, so that the transverse support block 1045d is rotated to a horizontal position above the limiting pin hole 1044. Then, the insertion rod 1045b is inserted into the limiting pin hole 1044. The insertion rod 1045b can be threaded into the rod hole (not shown) of the transverse support block 1045d and threaded into the limiting pin hole 1044.

[0028] In this embodiment of the invention, the base frame 100 is formed by welding square pipes together, and the top beam 102 is a round or square pipe. The first and last ends of the base frames 100 of adjacent frame units 10 are connected to each other by lower connectors 11, and the top beams 102 of adjacent frame units 10 are connected to each other by upper connectors 12. The first and last ends of adjacent base frames 100 are spliced ​​together by lower connectors 11, and the first and last ends of the top beams 102 are spliced ​​together by upper connectors 12 to form a frame 1. Insertion tubes 107 for inserting uprights 101 are provided on the side edges at the front and rear ends of the base frame 100. The lower end of the uprights 101... The end is inserted into the insertion tube 107. The outer wall of the upper end of the insertion tube 107 is fixedly connected to the outer wall of the column 101 near the upper end of the insertion tube 107 by setting up symmetrical flanges. The symmetrical flanges are fixed by bolts, which facilitates the quick insertion of the column 101 on the base frame 100. The entire frame 1 can be quickly and easily assembled. Reinforcing ribs 108 are provided on the side wall of the insertion tube 107 and along the transverse direction (vertical conveying direction) of the base frame 100, thereby strengthening the insertion connection between the insertion tube 107 and the column 101, thus facilitating the installation, transportation and storage of the entire placement fixture. The placement fixture of this invention is simple, convenient, and highly versatile. It can be used to hang powder coating and dry small parts of different tower crane products. Moreover, the fixture can be installed quickly, has a stable structure, strong load-bearing capacity, and can be set with multiple hanging points for small parts, thereby improving the efficiency of powder coating, accelerating the pace of powder coating and drying, enabling batch hanging and high-temperature baking, improving the utilization rate of powder coating and saving energy, and achieving the goal of cost reduction and efficiency improvement.

[0029] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A universal placement fixture for powder coating of small parts for tower cranes, characterized in that: The placement fixture includes a frame for supporting small parts of the conveyor tower crane. The frame is composed of one or more frame units connected horizontally in series. Each frame unit includes a base frame and uprights spaced apart along the conveying direction at both ends of the base frame. The bottoms of adjacent frame units are fixedly connected to each other through the front and rear side walls of the base frame. Top beams are horizontally arranged at the top of the uprights on both sides of the base frame along the conveying direction. Upper suspension supports are provided on the top beams above each side of the base frame, and lower suspension supports are provided on the side walls of the uprights on each base frame. Horizontal suspension support blocks are provided on the side walls of the top beams on one or both sides of the upper suspension support blocks, and suspension support notches are provided on the upper surface of the free end of the horizontal suspension support blocks. The lower suspension support includes horizontal support blocks provided on the front and rear side walls of the column, and a suspension limiting notch is provided on the horizontal support block and between the horizontal support block and the side wall of the column. A suspension crossbar is installed between the columns on the same side of the base frame and between the horizontal support blocks at the same horizontal height. The lower side walls at both ends of the suspension crossbar are provided with limiting slots that match the suspension limiting notch. Limiting pin holes that extend vertically are provided at both ends of the suspension crossbar and on the outside of the limiting slots. A rotatable limiting connector that is inserted into the limiting pin hole is provided on the lower outside of the horizontal support block. The column is a hollow tube. A slide opening for the horizontal support block to slide vertically up and down is provided on the side wall of the column. A vertical slider is provided in the slide opening and slides up and down along the inside of the column. The horizontal support block is horizontally set inside the column by the vertical slider. A rotatable limiting connector is provided on the lower outer side of the upper and lower ends of the slide opening and is inserted into the limiting pin hole.

2. The universal placement fixture for powder coating of small tower crane parts according to claim 1, characterized in that: Spring posts are provided on the outer walls of both sides of the vertical slider, and limiting through holes of different heights are provided on the side walls of the posts on both sides of the slide opening. The vertical slider is inserted into the limiting through holes through the spring posts.

3. The universal placement fixture for powder coating of small tower crane parts according to claim 1, characterized in that: The limiting connector includes a limiting support block and a plug rod. The lower end of the limiting support block is rotatably connected to the side wall of the column via a support shaft. The top of the limiting support block has a horizontally extending transverse support block above the limiting pin hole. A plug rod that can extend into the limiting pin hole is provided vertically along one side of the free end of the transverse support block.

4. The universal placement fixture for powder coating of small tower crane parts according to claim 1, characterized in that: The base frame is formed by welding square pipes together, and the top beam is a round or square pipe. The beginning and end ends of the base frames of adjacent frame units are connected to each other by lower connectors, and the top beams of adjacent frame units are connected to each other by upper connectors.

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