Supporting and hanging device for coating process of track frame

Abstract

The utility model discloses a track frame coating process supporting and hanging device which comprises main supporting rods and connecting rods, the two main supporting rods are arranged in a spaced mode and connected through the two connecting rods, each main supporting rod comprises a supporting rod and lifting lugs, and the two ends of each supporting rod are respectively and fixedly connected with one lifting lug. In the coating and hanging process of the track frame, the track frame supporting device plays a role in supporting the track frame, realizes simultaneous spraying of two track beams by a single coating line hanging vehicle, and avoids direct contact between an original hanger and the track beams, so that the spraying efficiency of the track frame is improved, the repair area of the appearance surface of the track beams taken down from a coating line is reduced, the production cost is saved, and the production efficiency is improved. The appearance quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of crawler frame coating, in particular to a crawler frame coating process supporting device. Background Art

[0002] The crawler frame is the main supporting steel structure of the crawler beam of crawler crane equipment. Each crawler crane needs to install two tracks. The weight and specifications vary greatly according to the tonnage requirements of the crawler crane. When the crawler crane is in use, the drive wheel, guide wheel, supporting roller, sprocket wheel and track plate and other parts need to be installed on the crawler frame to form the crawler beam, that is, the wheel assembly when the crawler crane is traveling.

[0003] In order to save the investment cost of painting line construction, the painting lines of construction machinery manufacturers are generally universal painting lines, that is, they must meet the painting needs of most workpieces. Therefore, the specifications, dimensions, and load-bearing capacity will refer to the dimensions of larger and heavier workpieces. When using larger or heavier structural parts, each vehicle (painting line trailer) only lifts one piece. However, when painting smaller structural parts, if only one piece is still lifted, there will be a certain waste of the line body and the beat balance. Therefore, when painting smaller structural parts, multiple pieces need to be constructed at the same time to improve production efficiency. Due to the different tonnage of crawler crane equipment, the width of the crawler frame used can differ by more than 2 times, and the weight difference can reach more than 5 times. Therefore, there is a need to paint multiple crawler frames of smaller tonnage products at the same time.

[0004] The existing crawler frame is a single-piece hanging, which is hoisted by passing the lifting chain through the leg mounting hole. This hanging method can only hang one piece at a time, and there is still a lot of space in the width direction of the same trailer. The production capacity of the line body cannot be fully utilized, resulting in great waste; at the same time, the existing hanging method has a large contact area between the lifting chain and the crawler frame, and the contact position cannot be effectively painted. A large amount of paint needs to be re-applied (re-painted at the covering position of the hoist) after going down the painting line. The re-applying process not only wastes manpower and material resources, but also easily leads to problems such as poor appearance color difference, glossiness and other poor decorative effects of the paint film. Summary of the invention

[0005] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a supporting device for a crawler frame painting process to solve the problems that multiple crawler frames cannot be sprayed at a time and the contact area between the crawler frame and the hanger is large, resulting in a large area for patching after the painting line, wasting manpower and material resources, and causing poor decorative effects of the paint film such as color difference and glossiness of the appearance.

[0006] In order to solve the above technical problems, the utility model is implemented by adopting the following scheme:

[0007] The utility model provides a crawler frame coating process supporting device, comprising a main supporting rod and a connecting rod, wherein the two main supporting rods are arranged at a distance and connected by two connecting rods, the main supporting rod comprises a support rod and a lifting lug, and a lifting lug is fixedly connected to each end of the support rod.

[0008] Furthermore, the main supporting rod is in a U-shaped structure as a whole.

[0009] Furthermore, it also includes a vertical plate, which is arranged on the support rod, and the thickness of the vertical plate is smaller than the width of the support rod.

[0010] Furthermore, it also includes front and rear blocking blocks, and two groups of front and rear blocking blocks are arranged on the support rod at a distance.

[0011] Furthermore, it also includes left and right blocking blocks, and two groups of left and right blocking blocks are arranged on the support rod at a distance.

[0012] Furthermore, it also includes a lifting hole, which is opened on the upper part of the lifting ear.

[0013] Furthermore, it also includes a connecting through hole, which is opened at the lower part of the lifting ear, and both ends of the support rod pass through the connecting through hole and are fixedly connected to the lifting ear.

[0014] Furthermore, it also includes a sealing plate, which is fixedly connected to the lifting ear and covers both ends of the support rod.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. The utility model changes the original hanging type into a supporting type, increases the total amount of one-time hanging and the number of single-vehicle spray crawler frames, fully utilizes the working capacity of the coating line, and saves production costs.

[0017] 2. The utility model transfers the hanging point of the crawler frame to the lifting lug of the supporting device, thereby reducing the direct contact area between the appearance of the crawler frame and the hanger, reducing the workload of making up after going offline, and improving work efficiency.

[0018] 3. The utility model transfers the contact point between the crawler frame and the hanger to the bottom surface of the workpiece, ensuring the one-time film-forming effect of the appearance topcoat film with high decorative requirements.

[0019] 4. The utility model adopts a vertical plate as the contact position of the workpiece, which effectively reduces the contact area and reduces the workload of making up after the offline process.

[0020] 5. The utility model takes into account the need for the crawler frame to move forward and backward and left and right during its operation in the coating line. The blocking block effectively protects the crawler frame from sliding left and right and front and back, thereby ensuring the safety of the working process. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1It is a structural schematic diagram of a crawler frame coating process supporting device provided by an embodiment of the utility model;

[0022] Figure 2 It is a structural schematic diagram of a main support rod in a support device for a crawler frame coating process provided by an embodiment of the utility model;

[0023] Figure 3 It is a structural schematic diagram of a lifting ear in a supporting device for a crawler frame during coating provided by an embodiment of the utility model;

[0024] Figure 4 This is a schematic diagram of the working state of a crawler frame coating process supporting device provided by the embodiment of the utility model

[0025] In the figure: 1. main supporting rod; 2. connecting rod; 3. lifting ear; 4. supporting rod; 5. vertical plate; 6. front and rear blocking blocks; 7. left and right blocking blocks; 8. sealing plate; 31. lifting hole; 32. connecting through hole. DETAILED DESCRIPTION

[0026] The utility model is further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and cannot be used to limit the protection scope of the utility model.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention. Embodiment 1:

[0029] The present embodiment provides a crawler frame painting process supporting device, which can meet the needs of spraying multiple crawler frames of various small-tonnage crawler crane products at the same time (all crawler frames less than the maximum load-bearing and maximum specification requirements can be used), and has strong versatility.

[0030] like Figure 1 As shown, the crawler frame coating process supporting device is mainly composed of two parts: a main supporting rod 1 and a connecting rod 2. A main supporting rod 1 is set at the front and rear to bear the load, and two connecting rods 2 are set at the left and right to connect the two main supporting rods 1. Figure 2 As shown, the main support rod 1 is composed of a lifting ear 3, a support rod 4, a vertical plate 5, front and rear blocking blocks 6 and left and right blocking blocks 7, and the overall structure is U-shaped. The vertical plate 5 is set on the support rod 4, the thickness of the vertical plate 5 is smaller than the width of the support rod 4, two groups of front and rear blocking blocks 6 are set on the support rod 4 at a distance, and two groups of left and right blocking blocks 7 are set on the support rod 4 at a distance. A lifting ear 3 is fixedly connected to each end of the support rod 4. Figure 3 As shown, a lifting hole 31 is provided on the upper part of the lifting ear 3, and the lifting ear 3 is connected to the hanging chain through the lifting hole 31 to achieve lifting; a connecting through hole 32 is provided on the lower part of the lifting ear 3 according to the shape of the support rod 4. When connected, both ends of the support rod 4 pass through the connecting through hole 32 and are fixedly connected to the lifting ear 3, thereby increasing the strength of the main force-bearing position.

[0031] like Figure 4As shown, when the supporting device is used during the crawler frame painting process, the two crawler frames are respectively mounted above the main supporting rod 1, and the direct contact surface is the upper plane of the vertical plate 5, which minimizes the contact area between the crawler frame and the supporting device, and minimizes the workload of repairing after going offline. At the same time, the contact position between the crawler frame and the hanging device is transferred from the left and right appearance surfaces to the bottom, reducing the difficulty of repairing the appearance of the paint surface after the painting line (the appearance quality of the bottom paint film has no decorative requirements, and is mainly for anti-corrosion; while the appearance surface has corresponding requirements for anti-corrosion and decorative quality, so the difficulty of repairing the appearance surface is greater than the bottom surface and the requirements are higher; Note: The appearance surface is the surface that is directly exposed and visible to people after the workpiece is installed in the state of a complete vehicle. Generally, the paint film is required to achieve not only anti-corrosion effects, but also certain decorative effects). It is connected to the hanging chain through the lifting lug 3 to avoid direct contact between the chain and the crawler frame, solve the problem of large-area repairing after the contact position is painted, improve production efficiency, and reduce costs. A connecting rod 2 is arranged between the two main supporting rods 1 so that the two main supporting rods 1 are connected to form a whole. When the supporting device is used during the crawler frame painting process, the tooling can be hoisted in place at one time to avoid two hoistings (if there is no such connection, the two main supporting rods 1 need to be hoisted and placed twice), thereby improving the hoisting efficiency. The front and rear blocking blocks 6 are located in the hollow position at the bottom of the crawler frame, and the left and right blocking blocks 7 are located in the middle of the two crawler frames, that is, each crawler frame is located between a left and right blocking block 7 and a lifting lug 3. A certain operating space is left between the two crawler frames, which can facilitate the spraying personnel to spray the inner side of the crawler frame. An appropriate distance is also left between the outer side and the lifting lug 3 to meet the outer side spraying operation. The setting of the front and rear blocking blocks 6 can prevent the crawler frame from sliding forward and backward along the length direction during use, and the left and right blocking blocks 7 cooperate with the lifting lug 3 to prevent the crawler frame from sliding forward and backward and left and right during use. Considering that the crawler frame has the need to move forward and backward and left and right in the running route of the painting line, multiple safety protection measures are set up to prevent the risk of the crawler frame sliding forward and backward and left and right during use.

[0032] In addition, the connecting rod 2 does not specify a specific profile, model, length, etc., and can use different round tubes, square tubes, etc. according to actual conditions. The connection method with the main support rod 1 is not specified, and can be welded, plug-in bolt fixed, plug-in pin fixed, etc. The support rod 4 does not specify a profile, and can use a whole rectangular steel pipe structure to ensure strength, or it can be replaced by plate welding or other profiles. The vertical plate 5 does not specify the thickness, and can be adjusted according to actual needs. For example: the vertical plate 5 is cut from a thick plate t=10mm thick plate, and the contact area between the crawler frame and the vertical plate is only 10mm wide when used. The front and rear blocking blocks 6 and the left and right blocking blocks 7 do not specify a specific profile or model, and can be in the form of bolts, round tubes, plates, etc. The installation method can be fixed on the main support rod 1 in the form of welding, bolt tightening, pin insertion, etc. The front and rear blocking blocks 6 can be replaced by using the bolt holes at the bottom of the crawler frame itself to install bolts or studs. Embodiment 2:

[0033] This embodiment provides a crawler frame coating process hanging device, the crawler frame coating process hanging device in addition to the structure disclosed in the first embodiment, such as Figure 2 As shown, it also includes a sealing plate 8, which is fixedly connected to the lifting ear 3 and covers both ends of the support rod 4 to prevent the paint from entering the support rod 4 and other parts during the crawler frame spraying process and making it difficult to clean.

[0034] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A crawler frame coating process supporting device, characterized in that: It includes a main support rod and a connecting rod, the two main support rods are arranged at a distance and connected by two connecting rods, the main support rod includes a support rod and a lifting lug, and a lifting lug is fixedly connected to each end of the support rod; It also includes a vertical plate, which is arranged on the support rod, and the thickness of the vertical plate is smaller than the width of the support rod; It also includes front and rear blocking blocks, two sets of front and rear blocking blocks are arranged on the support rod at a distance; It also includes left and right blocking blocks, two sets of left and right blocking blocks are arranged on the support rod at a distance; It also includes a connecting through hole, which is opened at the lower part of the lifting ear, and the two ends of the support rod pass through the connecting through hole and are fixedly connected to the lifting ear; It also includes a sealing plate, which is fixedly connected to the lifting ear and covers both ends of the supporting rod.

2. The crawler frame coating process supporting device according to claim 1 is characterized in that: The main support rod is an overall U-shaped structure.

3. The crawler frame coating process supporting device according to claim 1 is characterized in that: It also includes a lifting hole, which is arranged on the upper part of the lifting ear.

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