Box-type structure splicing point supporting rod

Abstract

The utility model discloses a box type structure splicing point supporting rod which comprises a supporting rod body, a lower installation base, an upper installation base, an adjusting component and a limiting component. The lower mounting seat is assembled at the bottom of the supporting rod main body and is in contact with the lower part of the box-shaped structure; the upper mounting seat sleeves the top of the supporting rod main body and is in clearance fit with the supporting rod main body, so that the upper mounting seat can move up and down on the supporting rod main body along the axis of the supporting rod main body; the adjusting part is mounted on the supporting rod main body below the upper mounting seat and is matched with the supporting rod main body to drive the upper mounting seat to move; the limiting component is fixed to the top of the supporting rod body and used for limiting the maximum stroke of the upper mounting base. The device solves the technical problems that materials for supporting can be taken out by cutting and grinding or violent hammer smashing due to welding stress released after inner baffles of upper and lower sealing plates of an existing box-type structure are tailor-welded, the operation time is long when a screw rod is conventionally rotated to adjust and verify to a specified length, the labor intensity of workers is increased, and the production efficiency of structural parts is reduced.

Description

Technical Field

[0001] The utility model relates to a box-type structure splicing point support rod, belonging to the technical field of splicing point auxiliary equipment. Background Art

[0002] Box-type welded structures are widely used in key structural parts of engineering machinery due to their good integrity and high structural strength. However, there is a significant bottleneck process in the welding of the upper and lower cover plates. That is, the tie rods and mounting seats used for the specific support height of the upper cover plate will be fastened and clamped in the inner gear due to the welding stress after the positioning weld is cooled. Usually, cutting or violent hammering is required to remove the supporting materials, and then the internal rib plates are assembled. There is obvious non-value-added operation time, which affects the production efficiency of box-type structural parts.

[0003] Take the articulated body support of an articulated dump truck as an example. It is composed of upper and lower sealing plates, a cylinder, and internal ribs. The ribs can only be assembled after the circumferential welds between the cylinder and the upper and lower sealing plates are completed to avoid interfering with the circumferential welds. When the upper sealing plate is assembled with the cylinder assembly into a box-type structure, there are no auxiliary support points, so a specific length of process ties or support seats are required to meet the assembly height requirements. At present, the engineering machinery industry mainly uses the following three methods to meet the support needs of the box-type internal gear: First, the process ties are riveted and welded inside the box, which needs to be cut and removed after welding; the second is to use a fixed height mounting seat, which needs to be violently hammered out after welding; the third is to use a threaded support rod that can be rotated to adjust the height, but the screw stroke needs to be checked before use to meet the support height requirements, and the operation is more cumbersome. Summary of the invention

[0004] In order to solve the problems that the existing box-type structure welding process requires cutting or violent hammering to remove the inner support materials, and the traditional rotatable and adjustable threaded support rods are cumbersome to use, and significantly reduce the labor intensity of workers, it is now necessary to design a support tooling suitable for the rapid installation and disassembly of the inner gear of the box-type structure based on the lightweight, low-cost and easy-to-operate design of the assembly tooling.

[0005] The utility model is implemented according to the following technical solutions:

[0006] A box-type structure joint support rod, comprising:

[0007] Support rod body;

[0008] A lower mounting seat, mounted at the bottom of the support rod body, for contacting the bottom of the box-shaped structure;

[0009] An upper mounting seat is sleeved on the top of the support rod body, and the two are clearance-matched, so that the upper mounting seat can move up and down on the support rod body along its axis;

[0010] An adjusting component is mounted on the support rod body below the upper mounting seat and cooperates with the support rod body to drive the upper mounting seat to move;

[0011] A limiting component is fixed on the top of the support rod body and is used to limit the maximum stroke of the upper mounting seat.

[0012] Further solution: the support rod body includes:

[0013] Supporting round tube;

[0014] A fixed mounting shaft head is mounted on one end of the supporting circular tube and is used to assemble the lower mounting seat;

[0015] The sliding mounting shaft head is mounted on the other end of the supporting circular tube and is used for assembling the upper mounting seat, the adjusting component and the limiting component.

[0016] A further solution: the fixed installation shaft head is a stepped shaft with three variable cross-sections. The upper smooth cylinder is inserted into the supporting circular tube and then welded together, and the lower cylinder is threaded for threaded connection with the lower mounting seat; the sliding installation shaft head is a stepped shaft with four variable cross-sections. The lower smooth cylinder is inserted into the supporting circular tube and then welded together, and the middle cylinder is threaded for installing the adjusting component. The upper smooth cylinder is used to insert the upper mounting seat and also serves as a guide mechanism for the adjusting component. The top axial surface is provided with a threaded hole for installing the limiting component.

[0017] A further solution: the cross-section of the lower mounting seat is an inverted T-shape, and a threaded hole extending vertically downward from the top surface is provided in the center thereof for mounting the support rod body.

[0018] A further solution: the lower mounting seat is further provided with at least one light hole extending vertically upward from the bottom surface for lightening and reducing weight.

[0019] A further solution: the adjusting component is a rotating nut, which consists of a nut and a handle; a connected threaded hole and a light hole are opened in the center of the nut, which is installed on the sliding mounting shaft head of the support rod body, and the nut is lifted and guided by the shaft hole clearance; the handle is installed on the outer peripheral surface of the nut, and the nut is rotated by the handle to convert the rotational motion of the nut into linear motion on the axis of the support rod body, thereby lifting the upper mounting seat.

[0020] A further solution: a plurality of handles are installed on the outer peripheral surface of the nut, and the plurality of handles are symmetrically distributed about the center line of the nut.

[0021] A further solution: the upper mounting seat is cylindrical, with a connected light hole and a groove at the center, the lower light hole is plugged into the sliding mounting shaft head of the support rod body, and the upper groove is used to install the limiting component.

[0022] A further solution: the limiting component is composed of a limiting plate and a screw; the limiting plate is circular, and its outer diameter is smaller than the inner diameter of the upper mounting seat hole, and a connected sliding shaft head plug hole and a screw mounting countersunk hole are provided in the center, and the sliding mounting shaft head and the limiting plate in the support rod body are connected by screws.

[0023] A further solution is that the upper mounting seat and the lower mounting seat are provided with edge chamfers around their peripheries.

[0024] Beneficial effects of the utility model:

[0025] The utility model provides a box-type structure joint point support rod, which can realize the rapid installation and disassembly of the inner joint point tooling of the box-type structure by quickly adjusting the rotating nut without cutting, grinding and violent hammering of the supporting material.

[0026] The invention solves the technical problems that the welding stress released after the welding of the inner gear of the upper and lower sealing plates of the existing box-type structure causes the supporting materials to need to be cut, ground or violently hammered before they can be removed, the conventional rotating screw adjustment and calibration to the specified length takes a long time, the labor intensity of workers is increased, and the production efficiency of structural parts is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation on the present invention. Obviously, the accompanying drawings described below are only some embodiments. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0028] In the attached picture:

[0029] Figure 1 It is an overall schematic diagram of the box-type structure joint support rod of the utility model;

[0030] Figure 2 It is a cross-sectional view of the support rod of the box-type structure of the utility model;

[0031] Figure 3 It is a schematic diagram of the support rod body of the utility model (a is a stereogram, b is a cross-sectional view);

[0032] Figure 4 Schematic diagram of the installation shaft head of the utility model (a is a fixed installation shaft head, b is a sliding installation shaft head);

[0033] Figure 5 Schematic diagram of the lower mounting seat of the utility model (a is a stereogram, b is a cross-sectional view);

[0034] Figure 6 The utility model is a schematic diagram of a rotating nut and a nut (a is a three-dimensional diagram of the rotating nut, and b is a cross-sectional view of the nut);

[0035] Figure 7 Schematic diagram of the upper mounting seat of the utility model (a is a stereogram, b is a cross-sectional view);

[0036] Figure 8 It is a cross-sectional view of the limiting plate of the utility model;

[0037] Fig. 9 It is a schematic diagram of the application of the box-type structure joint support rod of the utility model.

[0038] Figure symbols: 10 support rod body, 20 lower mounting seat, 30 rotating nut, 40 upper mounting seat, 50 limiting plate, 60 screw, 70 lower sealing plate, 80 upper sealing plate, 90 cylinder, 100 rib plate, 200 fillet weld;

[0039] 101 supporting round tube, 102 fixed mounting shaft head, 103 sliding mounting shaft head, 104 smooth cylinder, 105 coarse pitch thread, 106 smooth cylinder, 107 coarse pitch thread, 108 smooth cylinder, 109 threaded hole;

[0040] 201 threaded hole, 202 smooth hole;

[0041] 301 nut, 302 handle, 303 smooth hole, 304 threaded hole;

[0042] 401 groove, 402 light hole;

[0043] 501 sliding shaft head plug hole, 502 screw installation countersunk hole.

[0044] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0046] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They 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 direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0047] 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 an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] like Figure 1 , Figure 2 As shown, a box-type structure splicing support rod comprises a support rod body 10, a lower mounting seat 20, a rotating nut 30, an upper mounting seat 40, a limiting plate 50 and a screw 60; wherein, the support rod body 10 is connected to the lower mounting seat 20 by threaded matching, and is used to contact the bottom of the box-type structure; the support rod body 10 is connected to the rotating nut 30 by threaded matching, and the rotating nut 30 is used as an adjustment component, and the rotating nut 30 can be moved up and down along the axis of the support rod body 10 by manually rotating the rotating nut 30. The upper mounting seat 40 is plugged into the sliding mounting shaft head of the support rod body 10, and the maximum stroke of the upper mounting seat 40 is limited by the limiting component formed by the limiting plate 50, the screw 60 and the support rod body 10.

[0049] It should be noted that when the rotating nut is located at the lowest step, the height of the upper and lower mounting seats is h0, and when the rotating nut lifts the upper mounting seat to the maximum stroke, it is h1, and the support rod h1-h0=10mm, so as to facilitate the rapid installation and disassembly of the support rod and reduce invalid adjustment stroke.

[0050] A preferred embodiment of the above embodiment regarding the support rod body is given below:

[0051] like Figure 3 , Figure 4As shown, the support rod body 10 is welded by a supporting circular tube 101, a fixed mounting shaft head 102, and a sliding mounting shaft head 103. The smooth cylinders of the shaft heads on both sides are respectively inserted into the inner diameter of the supporting circular tube 101, and the two are clearance-matched (the actual tube inner diameter is 1 mm larger than the smooth cylinder of the shaft head). The supporting circular tube 101 is made of seamless steel tube, which can reduce weight while enhancing the bending and torsion resistance. Bevels are opened on both sides for welding operations; the fixed installation shaft head 102 is a stepped shaft with three variable cross-sections. The upper smooth cylinder 104 is inserted into the supporting circular tube 101 and welded together, and the lower cylinder is provided with a coarse thread 105 for threaded connection with the lower mounting seat 20; the sliding installation shaft 103 head is a stepped shaft with four variable cross-sections. The lower smooth cylinder 106 is inserted into the supporting circular tube 101 and welded together, and the middle cylinder is provided with a coarse thread 107 for installing the rotating nut 30, and the upper smooth circular column 108 is used to insert the upper mounting seat 40 and also serves as a guide mechanism for the rotating nut 30, so as to facilitate the up and down adjustment of the height; the top axial surface is provided with a threaded hole 109 for installing the limit plate 50.

[0052] A preferred embodiment of the above embodiment with respect to the lower mounting seat is given below:

[0053] like Figure 5 As shown, the cross section of the lower mounting seat 20 is an inverted T-shaped, with chamfered edges around to reduce the risk of bumps and scratches on the workpiece. The center of the lower mounting seat 20 is provided with a threaded hole 201 extending vertically downward from the top surface, which is used to install the support rod body 10. The threaded connection is convenient for later disassembly, maintenance and replacement; the lower mounting seat 20 is also provided with a light hole 202 extending vertically upward from the bottom surface for lightweighting.

[0054] A preferred embodiment of the above embodiment regarding the lower rotating nut is given below:

[0055] like Figure 6 As shown, the rotating nut 30 is welded by a nut 301 and a handle 302. The handle 302 is located on the outer peripheral surface of the nut 301 and is symmetrically distributed about the center line. A threaded hole 304 and a light hole 303 are opened in the center of the nut 301, which is installed on the sliding mounting shaft head 103 of the support rod body 10, and the nut 301 is guided to rise and fall through the shaft hole clearance fit; by rotating the nut 301 with the handle 302, the rotational motion of the nut 301 can be converted into a linear motion on the axis of the support rod body 10, thereby lifting the distance of the upper mounting seat 40.

[0056] A preferred embodiment of the above embodiment with respect to the upper mounting seat is given below:

[0057] like Figure 7As shown, the upper mounting seat 40 is cylindrical, with chamfered edges around to reduce the workpiece from being bumped or scratched. A light hole 402 and a groove 401 are connected at the center of the upper mounting seat 40. The lower light hole 402 is plugged into the sliding mounting shaft head 103 of the support rod body 10, and the upper groove 401 is used to install the limit plate 50.

[0058] A preferred embodiment of the above embodiment regarding the limit plate is given below:

[0059] like Figure 8 As shown, the limit plate 50 is circular, and its outer diameter is smaller than the inner diameter of the upper mounting seat hole. A sliding shaft head plug hole 501 and a screw mounting countersunk hole 502 are provided in the center. The sliding mounting shaft head 103 and the limit plate 50 are connected by screws 60. The two are used together to form a limit component of the inner support rod of the splicing point, which limits the maximum stroke, that is, the inner size of the box-type structure splicing point.

[0060] The working principle of the box-type structure joint support rod in the above embodiment is given below:

[0061] like Fig. 9 As shown, the welding operation of the box-type structure formed by the hinged body support of the rear frame of an articulated dump truck is used as an example: first, the lower sealing plate 70 and the cylinder 90 are assembled and placed flat on the work platform, and the rotating nut 30 of the assembly support rod is manually turned to lift the upper mounting seat 40 to the maximum lifting stroke (at this time, the maximum length of the assembly support rod is the inner size of the hinged body support), and the assembly support rod is placed vertically and steadily at the predetermined assembly position of the hinged body support, and the upper sealing plate 80 is hoisted and placed on the upper mounting seat 40, and the position of the workpiece is adjusted and the size is checked, and then spot welding is performed to reinforce and weld the inner and outer peripheral corner welds 200 of the cylinder 90. After the welding operation is completed, the rib plate 100 inside the box body is assembled, and the rotating nut 30 is reversed to the lower step so that the upper mounting seat 40 can fall back freely by 10 mm, and all the assembly support rods inside the box body are taken out and placed in the storage area, and the welding operation of the rib plate 100 is performed.

[0062] It should also be noted that the fixed mounting shaft head 102, sliding mounting shaft head 103, upper mounting seat 40, lower mounting seat 20, and rotating nut 30 of the box-type structure splicing support rod are preferably made of 45 medium carbon steel, all of which are tempered and blackened to increase wear resistance and corrosion resistance.

[0063] In summary, the joint support rod adopts a fixed-length quick-adjustment structure, and the problem of quick adjustment of the screw length is solved by a limit component; the rotating nut adopts an axial hole guide structure, and the adjustment process is smooth and flexible without jamming; the upper and lower mounting seats adopt an assembled structure, which is convenient for regular maintenance and replacement; the support rod body adopts a structure of round tubes and upper and lower shaft heads welded together, which is lightweight and can increase the bending and torsion resistance of the support rod; the upper and lower mounting seats and shaft heads are made of medium carbon steel quenched and tempered and blackened to increase wear resistance and corrosion resistance. The utility model solves the technical problems that the welding stress released after the welding of the inner gear of the upper and lower sealing plates of the existing box-type structure causes the support materials to be cut, ground or violently hammered before they can be removed, the conventional rotating screw adjustment and calibration to the specified length takes a long time, increases the labor intensity of workers, and reduces the production efficiency of structural parts.

[0064] In the description provided herein, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description.

[0065] In addition, those skilled in the art will understand that, although some embodiments described herein include certain features included in other embodiments but not other features, the combination of features of different embodiments also means being within the scope of protection of the present utility model and forming different embodiments. For example, in the above embodiments, those skilled in the art can use them in combination according to the known technical solutions and the technical problems to be solved by the present application.

[0066] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model has been disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this patent can make some changes or modify the technical content suggested above into an equivalent embodiment with equivalent changes without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the content of the technical solution of the utility model still falls within the scope of the solution of the utility model.

Claims

1. A box-type structure point support rod, characterized in that: include: Support rod body; A lower mounting seat, mounted at the bottom of the support rod body, for contacting the bottom of the box-shaped structure; An upper mounting seat is sleeved on the top of the support rod body, and the two are clearance-matched, so that the upper mounting seat can move up and down on the support rod body along its axis; An adjusting component is mounted on the support rod body below the upper mounting seat and cooperates with the support rod body to drive the upper mounting seat to move; A limiting component is fixed on the top of the support rod body and is used to limit the maximum stroke of the upper mounting seat.

2. A box-type structure joint support rod according to claim 1, characterized in that: The support rod body comprises: Supporting round tube; A fixed mounting shaft head is mounted on one end of the supporting circular tube and is used to assemble the lower mounting seat; The sliding mounting shaft head is mounted on the other end of the supporting circular tube and is used for assembling the upper mounting seat, the adjusting component and the limiting component.

3. A box-type structure joint support rod according to claim 2, characterized in that: The fixed installation shaft head is a stepped shaft with three variable cross-sections. The upper smooth cylinder is inserted into the supporting round tube and then welded together. The lower cylinder is threaded for threaded connection with the lower mounting seat. The sliding mounting shaft head is a stepped shaft with four variable cross-sections. The smooth cylinder on the lower side is inserted into the supporting circular tube and then welded together. The middle cylinder is threaded for installing the adjusting component. The smooth cylinder on the upper side is used to insert the upper mounting seat and also serves as a guide mechanism for the adjusting component. The top axial surface is provided with a threaded hole for installing the limiting component.

4. A box-type structure joint support rod according to claim 1, characterized in that: The cross section of the lower mounting seat is an inverted T-shape, and a threaded hole extending vertically downward from the top surface is provided at the center thereof for mounting the support rod body.

5. A box-type structure joint support rod according to claim 4, characterized in that: The lower mounting seat is also provided with at least one light hole extending vertically upward from the bottom surface for lightening and reducing weight.

6. The box-type structure joint support rod according to claim 1, characterized in that: The adjusting component is a rotating nut, which is composed of a nut and a handle; the center of the nut is provided with a threaded hole and a light hole connected to each other, and is installed on the sliding mounting shaft head of the support rod body, and the nut is lifted and lowered by the shaft hole clearance; The handle is mounted on the outer circumference of the nut. By rotating the nut with the handle, the rotational motion of the nut can be converted into linear motion on the axis of the support rod body, thereby lifting the upper mounting seat.

7. A box-type structure joint support rod according to claim 6, characterized in that: A plurality of handles are installed on the outer peripheral surface of the nut, and the plurality of handles are symmetrically distributed about the center line of the nut.

8. The box-type structure joint support rod according to claim 1, characterized in that: The upper mounting seat is cylindrical, and a connected light hole and a groove are arranged at the center thereof. The lower light hole is plugged into the sliding mounting shaft head of the support rod body, and the upper groove is used to install the limiting component.

9. The box-type structure joint support rod according to claim 1, characterized in that: The limiting component is composed of a limiting plate and a screw; the limiting plate is circular, and its outer diameter is smaller than the inner diameter of the upper mounting seat hole, and a connected sliding shaft head plug hole and a screw mounting countersunk hole are provided in the center, and the sliding mounting shaft head and the limiting plate in the support rod body are connected by screws.

10. The box-type structure joint support rod according to claim 1, characterized in that: The upper mounting seat and the lower mounting seat are provided with edge chamfers around their peripheries.

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