Nitric acid four-in-one unit maintenance lifting equipment

Abstract

The utility model provides nitric acid four-in-one unit maintenance hoisting equipment which comprises a supporting assembly and a cross arm, two groups of winches are assembled on the cross arm, hoisting assemblies are hoisted on the winches through hoisting ropes, stand columns are fixedly installed on the two sides of the cross arm, supporting assemblies are fixedly installed at the bottoms of the stand columns, and the supporting assemblies are fixedly installed on the cross arm. An adjusting assembly is fixedly installed on the back face of the stand column, a collecting assembly is assembled in the adjusting assembly, and two positioning assemblies are slidably installed in the collecting assembly. The collecting assembly comprises a collecting groove body and a mounting plate, and the adjusting assembly comprises a mounting frame body and a hydraulic cylinder. According to the utility model, the hoisting assembly and the positioning assembly are matched with each other, so that the machine body assembly in a hoisting state can be matched and positioned by the equipment, the machine body assembly cannot shake under the hoisting state due to external force when a worker carries out maintenance operation, and the stability of a hoisted object during operation is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of nitric acid unit maintenance, in particular to a lifting device for maintenance of a four-in-one nitric acid unit. Background Art

[0002] The four-in-one nitric acid unit is a highly efficient device that integrates core equipment such as the compressor, oxidation furnace, absorption tower, and tail gas treatment system during the nitric acid production process. This design not only optimizes the process flow and improves production efficiency, but also significantly reduces floor space and lowers construction and operating costs. It is an important component of modern nitric acid production technology.

[0003] During the overhaul of the nitric acid four-in-one unit, it may be necessary to use lifting equipment to complete the maintenance or replacement of parts;

[0004] After the existing lifting equipment lifts the body component, the component will be in a suspended state. The suspended component has no positioning effect, so the personnel need to use their other hand to restrain it when repairing the body component, which not only increases manpower consumption but also increases the tediousness during the repair period. At the same time, during the repair period, some components on the body will produce a lot of dirt or oil stains. Due to the lack of corresponding collection parts when lifting, the repair environment will be polluted, causing great inconvenience to the personnel when cleaning.

[0005] Therefore, this application proposes a nitric acid four-in-one unit maintenance lifting equipment. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a four-in-one nitric acid unit maintenance and lifting device, which solves the problems mentioned in the background technology.

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] The nitric acid four-in-one unit maintenance lifting equipment includes a support assembly and a cross arm. Two sets of winches are installed on the cross arm. The winches are hoisted with a lifting assembly through a lifting rope. Columns are fixedly installed on both sides of the cross arm. The bottom of the column is fixedly installed with a support assembly. The back of the column is fixedly installed with an adjustment assembly. The interior of the adjustment assembly is equipped with a collection assembly. Two sets of positioning assemblies are slidably installed inside the collection assembly. The collection assembly includes a collection trough body and a mounting plate. The adjustment assembly includes a mounting frame and a hydraulic cylinder. The positioning assembly includes a guide frame, a positioning pin rod, and a telescopic square rod. The back of the column is fixedly installed with a mounting frame. A mounting plate is slidably installed in the frame, a collecting trough body is fixedly installed on the front of the mounting plate, a hydraulic cylinder is docked with the back of the mounting frame, and the output end of the hydraulic cylinder is installed and connected to the collecting trough body, a guide frame is slidably installed inside the collecting trough body, a telescopic square rod is fixedly installed on the top of the guide frame, and a positioning pin rod is installed through the telescopic square rod; the lifting assembly includes a lifting wheel, a lifting seat, a connecting head, a rope loop, and a rope belt, the winch is hoisted with the lifting wheel through the lifting rope, a positioning hole is provided on one side of the lifting wheel, and the positioning hole cooperates with the positioning pin rod, the lifting seat is fixedly installed on the lifting wheel, the bottom of the lifting seat is fixedly installed with a connecting head, and the bottom of the connecting head is docked with a rope loop and a rope belt.

[0009] Furthermore, the support assembly includes a base and a support member. The base is fixedly installed on the bottom of the column, and the support member installed with the column diagonal brace is fixedly installed on the top of the base.

[0010] Furthermore, the collecting assembly also includes a first guide rail, the inner wall of the collecting trough body is fixedly mounted with the first guide rail, and the collecting trough body is slidably connected to the guide rack via the first guide rail.

[0011] Furthermore, the positioning assembly also includes a handle, and the handle is fixedly installed on the outer end of the positioning pin rod.

[0012] Furthermore, the adjustment assembly includes a support frame, a second guide rail, and a guide rod. The bottom of the mounting frame is fixedly installed with a support frame connected to the top of the base, the inner wall of the mounting frame is fixedly installed with a second guide rail, and the mounting frame is slidingly connected to the mounting plate through the second guide rail. Two sets of guide rods are fixedly installed on the back of the mounting plate, and the guide rods pass through the mounting frame.

[0013] Furthermore, the positioning pin rod is provided with a slide groove for limiting sliding with the telescopic square rod, and the guide frame is provided with a guide port, and the guide port is slidably connected to the first guide rail.

[0014] Furthermore, the hoisting assembly also includes a hook, the end of the rope is butt-jointed with the hook, and the hook is hung and connected to the rope loop.

[0015] The utility model provides a four-in-one nitric acid unit maintenance and lifting device. Compared with the existing technology, it has the following beneficial effects:

[0016] 1. The lifting components and positioning components work together to position the machine components in the lifting state, ensuring that the machine components will not shake in the lifting state due to external forces when personnel are performing maintenance work, and ensuring the stability of the hoisted object during operation;

[0017] 2. Through the cooperation between the adjustment component and the collection component, the equipment can not only slide and adjust according to the hoisting object, prompting the collection component to enter or exit the operating state without affecting the operation of the equipment and the body, but also can centrally collect the oil stains and dirt on the maintenance body, so that personnel can clean it more conveniently and quickly, avoiding pollution to the working environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 Shows a schematic diagram of the overall structure of the lifting equipment of the present utility model;

[0020] Figure 2 Shows a schematic diagram of the assembly structure of the positioning component and the adjustment component of the utility model;

[0021] Figure 3 Shows a schematic diagram of the assembly structure of the hoist and hoisting assembly of the utility model;

[0022] Figure 4 Shows a schematic structural diagram of the positioning assembly of the present utility model;

[0023] As shown in the figure: 1. Support assembly; 11. Base; 12. Support member; 2. Column; 3. Collection assembly; 31. Collection trough; 32. Mounting plate; 33. First guide rail; 4. Cross arm; 5. Winch; 51. Lifting rope; 6. Adjustment assembly; 61. Support frame; 62. Mounting frame; 63. Second guide rail; 64. Guide rod; 65. Hydraulic cylinder; 7. Positioning assembly; 71. Guide frame; 711. Guide port; 72. Positioning pin rod; 721. Slide; 73. Handle; 74. Telescopic square rod; 8. Lifting assembly; 81. Lifting wheel; 811. Positioning hole; 82. Hanging seat; 83. Connector; 84. Rope loop; 85. Rope belt; 86. Hook. DETAILED DESCRIPTION

[0024] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0025] Example 1

[0026] In order to solve the technical problems in the background technology, the following nitric acid four-in-one unit maintenance lifting equipment is provided:

[0027] Combine Figures 1-4 As shown, the nitric acid four-in-one unit maintenance lifting equipment provided by the present invention includes a support assembly 1 and a cross arm 4, two sets of hoists 5 are installed on the cross arm 4, and a hoisting assembly 8 is hoisted on the hoist 5 through a hoisting rope 51. Columns 2 are fixedly installed on both sides of the cross arm 4, the support assembly 1 is fixedly installed on the bottom of the column 2, and an adjustment assembly 6 is fixedly installed on the back of the column 2. The interior of the adjustment assembly 6 is equipped with a collection assembly 3, and two sets of positioning assemblies 7 are slidably installed inside the collection assembly 3;

[0028] During this period, the lifting operation of the work object is realized by the two sets of winches 5 on the cross arm 4. The lifting component 8 cooperates with the positioning component 7 to enable the equipment to coordinate and position the body components in the lifting state, ensuring that the body components will not shake in the lifting state due to external force when the personnel are performing maintenance work, and ensuring the stability of the hoisted object when being operated. By utilizing the mutual cooperation of the support component 1 and the column 2, the support of the cross arm 4 is completed to ensure the lifting operation of the equipment. The adjustment component 6 cooperates with the collection component 3, so that the equipment can not only slide and adjust according to the lifting object, prompting the collection component 3 to enter or exit the operating state, but also can collect oil stains and dirt on the maintenance body in a centralized manner, so that personnel can clean more conveniently and quickly to avoid pollution to the working environment.

[0029] The collecting assembly 3 includes a collecting tank body 31 and a mounting plate 32. The adjusting assembly 6 includes a mounting frame 62 and a hydraulic cylinder 65. The positioning assembly 7 includes a guide frame 71, a positioning pin rod 72, and a telescopic square rod. The back of the column 2 is fixedly mounted with a mounting frame 62, and a mounting plate 32 is slidably mounted in the mounting frame 62. The front of the mounting plate 32 is fixedly mounted with the collecting tank body 31. The back of the mounting frame 62 is docked with a hydraulic cylinder 65, and the output end of the hydraulic cylinder 65 is installed and connected to the collecting tank body 31. The interior of the collecting tank body 31 is slidably mounted with a guide frame. 71, a telescopic square rod is fixedly installed on the top of the guide frame 71, and a positioning pin rod 72 is installed through the telescopic square rod; the lifting assembly 8 includes a lifting wheel 81, a hanging seat 82, a connecting head 83, a rope loop 84, and a rope belt 85. The hoist 5 is hoisted with the lifting wheel 81 through the lifting rope 51. A positioning hole 811 is provided on one side of the lifting wheel 81, and the positioning hole 811 cooperates with the positioning pin rod 72. The lifting wheel 81 is fixedly installed with the hanging seat 82, and the bottom of the hanging seat 82 is fixedly installed with a connecting head 83. The bottom of the connecting head 83 is respectively connected with the rope loop 84 and the rope belt 85;

[0030] During this period, the hoisting rope 51 is lowered by the winch 5, prompting the rope loop 84 and rope belt 85 on the hanging wheel 81 to descend synchronously, and the rope loop 84 and rope belt 85 cooperate with each other to complete the set fixation of the two ends of the hoisting object and lift it. When it reaches the maintenance height, the personnel can start the hydraulic cylinder 65, and the output end of the hydraulic cylinder 65 can push the mounting plate 32, prompting the mounting plate 32 to drive the collecting tank body 31 to move synchronously, prompting the collecting tank body 31 to reach the bottom of the hoisting object. After completion, the personnel manually toggle the guide frame 71, and the guide frame 71 moves in real time in the collecting tank body 31, prompting the guide frame 71 to move to both sides of the hanging wheel 81. The personnel cooperates with the telescopic square rod 74 to prompt the positioning pin rod 72 to reach the positioning point and insert the positioning pin rod 72 into the hanging wheel 81 to complete the positioning of the hanging wheel 81 to avoid shaking of the hoisted object.

[0031] During operation, dirt and oil stains generated will fall into the collection tank 31 for unified collection.

[0032] Example 2

[0033] like Figure 1 and Figure 4 As shown, based on the above embodiment, this embodiment further provides the following content:

[0034] In this embodiment, the support assembly 1 includes a base 11 and a support member 12 . The base 11 is fixedly mounted on the bottom of the column 2 , and the support member 12 , which is diagonally braced with the column 2 , is fixedly mounted on the top of the base 11 .

[0035] During this period, the base 11 is used to support and bear the entire device, ensuring the stable placement of the device. The support member 12 can further ensure the supporting strength and stability of the base 11 on the column 2.

[0036] In this embodiment, the collecting assembly 3 further includes a first guide rail 33 . The first guide rail 33 is fixedly mounted on the inner wall of the collecting trough body 31 , and the collecting trough body 31 is slidably connected to the guide frame 71 via the first guide rail 33 .

[0037] During this period, the collecting trough 31 carries the guide rack 71 , and the first guide rail 33 can be used to cause the guide rack 71 to slide in real time in the collecting trough 31 . The specific distance needs to be determined according to the width of the actual hoisting object.

[0038] Example 3

[0039] like Figures 1-4 As shown, based on the above embodiment, this embodiment further provides the following content:

[0040] In this embodiment, the positioning assembly 7 further includes a handle 73 , and the handle 73 is fixedly mounted on the outer end of the positioning pin rod 72 .

[0041] During this period, the personnel can pull the positioning pin rod 72 through the handle 73;

[0042] A person can pull and adjust the positioning pin rod 72 through the handle 73 to enable the positioning pin rod 72 to be inserted into or disengaged from the positioning hole 811, thereby increasing the convenience of the person during operation.

[0043] In this embodiment, the adjustment assembly 6 includes a support frame 61, a second guide rail 63, and a guide rod 64. The bottom of the mounting frame 62 is fixedly installed with a support frame 61 connected to the top of the base 11, the inner wall of the mounting frame 62 is fixedly installed with a second guide rail 63, and the mounting frame 62 is slidingly connected to the mounting plate 32 through the second guide rail 63. Two sets of guide rods 64 are fixedly installed on the back of the mounting plate 32, and the guide rods 64 pass through the mounting frame 62.

[0044] During this period, when the maintenance object is lifted, the hydraulic cylinder 65 can be started, and the output end of the hydraulic cylinder 65 can push the mounting plate 32 in the mounting frame 62 to slide. The mounting plate 32 is pushed smoothly in the mounting frame 62 by the second guide rail 63, and in order to ensure the stability of the mounting frame 62 during the load-bearing period, the support frame 61 at the bottom is used for auxiliary completion;

[0045] The guide rod 64 ensures the smoothness of the mounting plate 32 during the pushing process.

[0046] In this embodiment, the hanging assembly 8 further includes a hook 86 . The end of the rope belt 85 is docked with the hook 86 , and the hook 86 is hung and connected to the rope loop 84 .

[0047] Before the equipment lifts the work object, the personnel first wrap the rope 85 around the two ends of the lifting object, and use the hook 86 to connect the wrapped rope 85 with the rope loop 84 to form a complete rope loop structure. After completing the set operation on both ends of the lifting object, the equipment can then perform the lifting operation.

[0048] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0049] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features thereof can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. Overhaul hoisting equipment for nitric acid four-in-one unit, characterized by: The invention comprises a support assembly (1) and a cross arm (4), wherein two groups of hoists (5) are mounted on the cross arm (4), and a hoisting assembly (8) is mounted on the hoist (5) via a hoisting rope (51), and columns (2) are fixedly mounted on both sides of the cross arm (4), the bottom of the column (2) is fixedly mounted with a support assembly (1), the back of the column (2) is fixedly mounted with an adjustment assembly (6), the interior of the adjustment assembly (6) is equipped with a collection assembly (3), and the interior of the collection assembly (3) is slidably mounted with two groups of positioning assemblies (7); The collecting assembly (3) comprises a collecting tank body (31) and a mounting plate (32); the adjusting assembly (6) comprises a mounting frame body (62) and a hydraulic cylinder (65); the positioning assembly (7) comprises a guide frame (71), a positioning pin rod (72) and a telescopic square rod (74); the back of the column (2) is fixedly mounted with the mounting frame body (62); the mounting plate (32) is slidably mounted in the mounting frame body (62); the front of the mounting plate (32) is fixedly mounted with the collecting tank body (31); the back of the mounting frame body (62) is docked with the hydraulic cylinder (65); the output end of the hydraulic cylinder (65) is mounted and connected to the collecting tank body (31); the inside of the collecting tank body (31) is slidably mounted with the guide frame (71); the top of the guide frame (71) is fixedly mounted with the telescopic square rod (74); the positioning pin rod (72) is installed through the telescopic square rod (74); The hoisting assembly (8) comprises a hanging wheel (81), a hanging seat (82), a connecting head (83), a rope loop (84), and a rope belt (85). The hoist (5) is hoisted with the hanging wheel (81) through a hanging rope (51). A positioning hole (811) is provided on one side of the hanging wheel (81), and the positioning hole (811) cooperates with a positioning pin rod (72). The hanging wheel (81) is fixedly mounted with the hanging seat (82). The bottom of the hanging seat (82) is fixedly mounted with the connecting head (83). The bottom of the connecting head (83) is respectively docked with the rope loop (84) and the rope belt (85).

2. The nitric acid four-in-one unit maintenance lifting equipment according to claim 1, characterized in that: The support assembly (1) comprises a base (11) and a support member (12); the base (11) is fixedly mounted on the bottom of the column (2); and the support member (12) is fixedly mounted on the top of the base (11) and is diagonally braced with the column (2).

3. The nitric acid four-in-one unit maintenance lifting equipment according to claim 2, characterized in that: The collecting assembly (3) further comprises a first guide rail (33), the inner wall of the collecting tank body (31) is fixedly mounted with the first guide rail (33), and the collecting tank body (31) is slidably connected to the guide frame (71) via the first guide rail (33).

4. The nitric acid four-in-one unit maintenance lifting equipment according to claim 3, characterized in that: The positioning assembly (7) further comprises a handle (73), and the handle (73) is fixedly mounted on the outer end of the positioning pin rod (72).

5. The nitric acid four-in-one unit maintenance lifting equipment according to claim 4, characterized in that: The adjustment assembly (6) comprises a support frame (61), a second guide rail (63), and a guide rod (64); the bottom of the mounting frame (62) is fixedly mounted with the support frame (61) connected to the top of the base (11); the inner wall of the mounting frame (62) is fixedly mounted with the second guide rail (63); the mounting frame (62) is slidably connected to the mounting plate (32) through the second guide rail (63); two groups of guide rods (64) are fixedly mounted on the back of the mounting plate (32), and the guide rods (64) pass through the mounting frame (62).

6. The nitric acid four-in-one unit maintenance lifting equipment according to claim 5, characterized in that: The positioning pin rod (72) is provided with a sliding groove (721) for limiting sliding with the telescopic square rod (74); the guide frame (71) is provided with a guide opening (711), and the guide opening (711) is slidably connected to the first guide rail (33).

7. The nitric acid four-in-one unit maintenance lifting equipment according to claim 6, characterized in that: The hoisting assembly (8) further comprises a hook (86), the end of the rope belt (85) is butt-jointedly mounted with the hook (86), and the hook (86) is hang-connected with the rope loop (84).

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