Rotary suspension arm

Abstract

The rotary suspension arm comprises a base and a rotary stand column, the base comprises a base cylinder, a first bearing and a second bearing are arranged in the base cylinder, one end of the rotary stand column is inserted into the base cylinder and is connected with the base cylinder through the first bearing and the second bearing, and the other end of the rotary stand column is connected with the base cylinder through the first bearing and the second bearing. A first flange is arranged on the rotating stand column, a second flange is arranged on the seat cylinder, pin holes are formed in the first flange and the second flange, and the first flange and the second flange can be fixed through pins. According to the rotary suspension arm, the bearing is adopted as a rotary motion structure of the seat cylinder and the rotary stand column, and compared with a sliding rotary structure, the rotary motion is more flexible and labor-saving. According to the utility model, the positioning and limiting device, namely the first flange, the second flange and the pin, is arranged, so that the rotary upright post can be locked and fixed through the pin when an object is lifted and placed, the rotary upright post does not rotate any more, and the safety in the working process is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hoisting equipment, in particular to a rotary suspension arm. Background Art

[0002] Jib crane is a special tool for hoisting and lifting. It plays an irreplaceable role in equipment assembly and maintenance. It is a mechanical equipment used for lifting and moving objects. It is mainly used for loading and unloading and moving goods, equipment assembly and maintenance in the fields of equipment manufacturing, papermaking, energy and electricity, automobiles and ships, metal processing, aerospace, etc.

[0003] The existing mud pump cantilever crane has a simple structure, with only the column and the column sleeve forming a sliding and rotating structure. The movement is inflexible and laborious during the hoisting process, which makes the installation difficult. In addition, there is no limit device set in the overall structure. When lifting heavy objects, the cantilever position cannot be fixed. When the cantilever is subjected to force, it rotates by itself, which is easy to hit other equipment or cause injuries. Utility Model Content

[0004] Therefore, one purpose of the utility model is to provide a rotary suspension arm to solve the problems mentioned in the background technology and overcome the deficiencies in the prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A rotary suspension arm comprises a base and a rotary column, wherein the base comprises a seat tube, a first bearing and a second bearing are arranged in the seat tube, one end of the rotary column is inserted into the seat tube and is connected to the seat tube via the first bearing and the second bearing, the rotary column is provided with a first flange, the seat tube is provided with a second flange, pin holes are arranged on the first flange and the second flange, and the first flange and the second flange can be fixed by pins.

[0007] Furthermore, the rotating column is cylindrical, and includes a rotating section and a supporting section. The rotating section is connected to the supporting end, the rotating section and the supporting section are coaxial, the cross-sectional diameter of the rotating section is smaller than the cross-sectional diameter of the supporting section, the rotating section of the rotating column is a solid cylinder, and the supporting section of the rotating column is a hollow cylinder with both ends closed.

[0008] Furthermore, the rotating section of the rotating column is completely inserted into the seat tube, one end of the rotating section is in contact with the first bearing, the other end of the rotating section is in contact with the second bearing, and one end of the rotating section is connected to a bearing baffle.

[0009] Furthermore, one end of the supporting section of the rotating column is inserted into the seat tube, the second flange is arranged at the port of the seat tube, the first flange is arranged outside the end of the supporting section of the rotating column that is not inserted into the seat tube, and the first flange is connected to the second flange.

[0010] Furthermore, the suspension arm also includes a cantilever and a trolley, the cantilever is connected to the other end of the rotating column, the cantilever is perpendicular to the rotating column, a support plate is also provided at the connection between the cantilever and the rotating column, a guide rail is provided on the cantilever, and the trolley is provided with rollers, and the trolley can move along the guide rail through the rollers.

[0011] Furthermore, the base also includes a first fixed bottom plate and a plurality of first fixed bolts, the seat tube is provided with a second fixed bottom plate, and the first fixed bottom plate and the second fixed bottom plate are connected via the first fixed bolts.

[0012] Furthermore, the suspension arm also includes a plurality of column foot bottom plates, and the column foot bottom plates are arranged at the connection between the second fixed bottom plate and the seat tube, and the column foot bottom plates are connected to the second fixed bottom plate and the seat tube.

[0013] Therefore, the utility model has the following beneficial effects:

[0014] The utility model discloses a rotary suspension arm, which adopts bearings as the rotary motion structure of the seat tube and the rotary column. Compared with the sliding rotary structure, the rotary motion is more flexible and labor-saving.

[0015] The utility model discloses a rotary suspension arm, which is provided with a positioning and limiting device, namely a first flange, a second flange and a pin. When lifting and placing objects, the rotating column can be locked and fixed by the pin so that it does not rotate any more, thereby increasing the safety of the working process.

[0016] The utility model discloses a rotary suspension arm, wherein the auxiliary cylinder and the column sleeve form a sliding rotary structure, which increases the safety of the overall structure and enables the overall structure to be flexibly rotated under a larger force.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 It is a schematic diagram of the overall structure of the suspension arm of the utility model;

[0020] Figure 2 This is a schematic diagram of the overall structure of the rotating column + base of the utility model;

[0021] Figure 3 It is a structural schematic diagram of the rotary column of the utility model;

[0022] Figure 4 It is a cross-sectional view of the rotary column of the utility model;

[0023] Figure 5 It is a structural schematic diagram of the base of the utility model;

[0024] Figure 6 It is a front view of the base of the utility model;

[0025] Figure 7 yes Figure 6 AA section view shown;

[0026] Figure 8 It is a partial cross-sectional view of the rotating column + base of the utility model.

[0027] In the figure: 1. rotating column; 2. base; 3. seat tube; 4. first bearing; 5. second bearing; 6. first flange; 7. second flange; 8. pin hole; 9. pin; 10. rotating section; 11. supporting section; 12. bearing baffle; 13. cantilever; 14. crane; 15. support plate; 16. first fixed bottom plate; 17. second fixed bottom plate; 18. column foot bottom plate; 19. transition section; 20. first fixing screw hole; 21. second fixing screw hole; 22. slot. DETAILED DESCRIPTION

[0028] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0029] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like 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 according to specific circumstances.

[0030] like Figure 1-Figure 8As shown, a rotary suspension arm includes a base 2 and a rotary column 1, the base 2 includes a seat tube 3, a first bearing 4 and a second bearing 5 are provided in the seat tube 3, one end of the rotary column 1 is inserted into the seat tube 3 and is connected to the seat tube 3 through the first bearing 4 and the second bearing 5, the rotary column 1 is provided with a first flange 6, the seat tube 3 is provided with a second flange 7, the first flange 6 and the second flange 7 are both provided with pin holes 8, and the first flange 6 and the second flange 7 can be fixed by pins 9.

[0031] The utility model provides a rotary suspension arm, which adopts bearings as the rotary motion structure of the seat tube 3 and the rotary column 1. Compared with the sliding rotary structure, the rotary motion is more flexible and labor-saving.

[0032] The utility model provides a rotary suspension arm, which is provided with a positioning and limiting device, namely a first flange 6, a second flange 7, a pin hole 8 and a pin 9. When lifting and placing objects, the rotary column 1 can be locked and fixed by the pin 9 so that it no longer rotates, thereby increasing the safety of work.

[0033] As an implementation manner, there are multiple pin holes 8 on the first flange 6 and the second flange 7 .

[0034] As a specific implementation manner, six pin holes 8 are provided on the first flange 6 .

[0035] As a specific implementation manner, four pin holes 8 are provided on the first flange 6 .

[0036] As a specific implementation manner, eight pin holes 8 are provided on the first flange 6 .

[0037] As a specific implementation manner, five pin holes 8 are provided on the second flange 7 .

[0038] As a specific implementation manner, four pin holes 8 are provided on the second flange 7 .

[0039] As a specific implementation manner, three pin holes 8 are provided on the second flange 7 .

[0040] As a specific implementation manner, the pin holes 8 on the first flange 6 and the second flange 7 are evenly distributed.

[0041] As a specific implementation, the pin holes 8 on the first flange 6 and the second flange 7 have the same diameter.

[0042] That is to say, the number and position of the pin holes 8 on the first flange 6 and the second flange 7 are not fixed, and can be selectively set according to factors such as the size of the flange and the diameter of the pin holes 8. Any number and position of the pin holes 8 on the first flange 6 and the second flange 7 that can be used to lock and fix the rotating column 1 through the pins 9 and the pin holes 8 when lifting and placing objects are within the protection scope of the present utility model.

[0043] like Figure 3 and Figure 4 As shown, the rotating column 1 is cylindrical as a whole, and includes a rotating section 10 and a supporting section 11. The rotating section 10 is connected to the supporting end, and the rotating section 10 and the supporting section 11 are coaxially arranged. The cross-sectional diameter of the rotating section 10 is smaller than the cross-sectional diameter of the supporting section 11. The rotating section 10 of the rotating column 1 is a solid cylinder, and the supporting section 11 of the rotating column 1 is a hollow cylinder with both ends closed.

[0044] As an implementation manner, the length of the rotating section 10 of the rotating column 1 is smaller than the length of the supporting section 11 of the rotating column 1 .

[0045] As an embodiment, the first flange 6 is arranged on the support section 11 of the rotating column 1, and the specific position is close to the end of the support section 11 where the rotating section 10 of the rotating column 1 is connected to the support section 11, and the first flange 6 is arranged around the support section 11 of the rotating column 1.

[0046] As an implementation method, Figure 3 As shown, a slot 22 is provided at one end of the support section 11 of the rotating column 1 away from the rotating section 10 , and the slot 22 is used for connecting and installing the fixed cantilever 13 .

[0047] like Figure 8 As shown, the rotating section 10 of the rotating column 1 is completely inserted into the seat tube 3, one end of the rotating section 10 contacts the first bearing 4, the other end of the rotating section 10 contacts the second bearing 5, and one end of the rotating section 10 is connected to a bearing baffle 12.

[0048] As an implementation method, Figure 3 , Figure 4 and Figure 8 As shown, a transition section 19 is provided between the rotating section 10 and the supporting section 11 of the rotating column 1 .

[0049] As an implementation manner, the cross-sectional diameter of the transition section 19 of the rotating column 1 is larger than the cross-sectional diameter of the rotating section 10 and smaller than the cross-sectional diameter of the supporting section 11 .

[0050] As an implementation method, Figure 8 As shown, the bearing baffle 12 is provided with a second fixing screw hole 21, which cooperates with a second fixing bolt to connect the bearing baffle 12 to the second bearing 5. The second fixing bolt is not shown in the figure.

[0051] like Figure 4 and Figure 8As shown, the support section 11, transition section 19 and rotating section 10 of the rotating column 1 together form a stepped auxiliary cylindrical structure, which is in contact with the first bearing 4 and forms a sliding rotating structure with the inner surface of the column sleeve, i.e., the seat tube 3, thereby increasing the safety of the overall structure and allowing the overall structure to rotate flexibly under greater force.

[0052] like Figure 8 As shown, one end of the support section 11 of the rotating column 1 is inserted into the seat tube 3, the second flange 7 is arranged at the end of the seat tube 3, and the first flange 6 is arranged outside the end of the support section 11 of the rotating column 1 that is not inserted into the seat tube 3, and the first flange 6 is connected to the second flange 7.

[0053] The utility model provides a rotary suspension arm, which is provided with a positioning and limiting device, namely a first flange 6, a second flange 7 and a pin 9. A pin hole 8 is provided on the first flange 6 and the second flange 7. When lifting and placing objects, a rotary column 1 can be locked and fixed by the pin 9 and the flanges, so that the rotary column 1 no longer rotates, thereby increasing the safety of the suspension arm during operation.

[0054] like Figure 1 As shown, the suspension arm also includes a cantilever 13 and a trolley 14. The cantilever 13 is connected to the other end of the rotating column 1. The cantilever 13 is perpendicular to the rotating column 1. A support plate 15 is also provided at the connection between the cantilever 13 and the rotating column 1. A guide rail is provided on the cantilever 13, and the trolley 14 is provided with rollers. The trolley 14 can move along the guide rail through the rollers.

[0055] The crane 14 belongs to the existing mature technology, and the utility model will not be described in detail here.

[0056] Specifically, the cantilever 13 is connected and fixed to the other end of the rotating column 1 through the slot 22. It can be understood that the cantilever 13 and the rotating column 1 are connected and fixed through the slot 22 is only one connection method given in this embodiment, and the connection method of the cantilever 13 and the rotating column 1 is not limited to this, and can also be connected and fixed by bolts, pins 9, welding or a combination thereof.

[0057] like Figure 2 and Figure 5 As shown, the base 2 further includes a first fixed bottom plate 16 and a plurality of first fixing bolts, the seat tube 3 is provided with a second fixed bottom plate 17, and the first fixed bottom plate 16 and the second fixed bottom plate 17 are connected by first fixing bolts.

[0058] The first fixing base plate 16 and the second fixing plate are provided with corresponding first fixing screw holes 20 . The first fixing base plate 16 and the second fixing plate are connected via first fixing bolts and the first fixing screw holes 20 . The first fixing bolts are not shown in the figure.

[0059] The first fixing base plate 16 is provided with a plurality of first fixing screw holes 20 penetrating the first fixing base plate 16 , and the second fixing base plate 17 is also provided with a plurality of first fixing screw holes 20 penetrating the first fixing base plate 16 . The first fixing screw holes 20 on the first fixing base plate 16 and the first fixing screw holes 20 on the second fixing base plate 17 correspond to each other one by one.

[0060] like Figure 2 and Figure 5 As shown, the suspension arm also includes a plurality of column foot plates 18 , which are arranged at the connection between the second fixed base plate 17 and the seat tube 3 , and are connected to the second fixed base plate 17 and the seat tube 3 .

[0061] As an implementation mode, the column foot bottom plate 18 is connected to the second fixed bottom plate 17 and the seat tube 3 by welding.

[0062] As an implementation manner, the column foot bottom plate 18 is in the shape of a right-angled trapezoid.

[0063] As an implementation manner, there are four column foot bottom plates 18 , and the four column foot bottom plates 18 are evenly distributed around the seat tube 3 .

[0064] The column foot bottom plate 18 can disperse the force between the seat tube 3 and the fixed bottom plate. While providing support for the seat tube 3 and the rotating column 1, the column foot bottom plate 18 can also evenly distribute the ground span of the seat tube 3 to the fixed bottom plate and the ground, effectively reducing the pressure on the fixed bottom plate and the ground, and playing a role in improving the ground.

[0065] As an implementation method, the column base plate 18 is made of stainless steel.

[0066] The utility model discloses a rotary suspension arm, which adopts bearings as the rotary motion structure of the seat tube and the rotary column. Compared with the sliding rotary structure, the rotary motion is more flexible and labor-saving.

[0067] The utility model discloses a rotary suspension arm, which is provided with a positioning and limiting device, namely a first flange, a second flange and a pin. When lifting and placing objects, the rotating column can be locked and fixed by the pin so that it does not rotate any more, thereby increasing the safety of the working process.

[0068] The utility model discloses a rotary suspension arm, wherein the auxiliary cylinder and the column sleeve form a sliding rotary structure, which increases the safety of the overall structure and enables the overall structure to be flexibly rotated under a larger force.

[0069] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0070] It is not difficult for those skilled in the art to understand that the utility model includes any combination of the utility model content and the specific implementation method part of the above specification and the various parts shown in the drawings. Due to the limited space and to make the specification concise, the various schemes composed of these combinations are not described one by one. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

[0071] Although the embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and cannot be understood as limiting the present invention. Those skilled in the art can change, modify, replace and modify the above embodiments within the scope of the present invention without departing from the principles and purpose of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rotary suspension arm, characterized in that: It includes a base and a rotating column, the base includes a seat tube, the seat tube is provided with a first bearing and a second bearing, one end of the rotating column is inserted into the seat tube and is connected to the seat tube through the first bearing and the second bearing, the rotating column is provided with a first flange, the seat tube is provided with a second flange, the first flange and the second flange are both provided with pin holes, and the first flange and the second flange can be fixed by pins.

2. A rotary suspension arm according to claim 1, characterized in that: The rotating column is cylindrical and includes a rotating section and a supporting section. The rotating section is connected to the supporting section, the rotating section and the supporting section are coaxial, the cross-sectional diameter of the rotating section is smaller than the cross-sectional diameter of the supporting section, the rotating section of the rotating column is a solid cylinder, and the supporting section of the rotating column is a hollow cylinder with both ends closed.

3. A rotary suspension arm according to claim 2, characterized in that: The rotating section of the rotating column is completely inserted into the seat tube, one end of the rotating section is in contact with the first bearing, the other end of the rotating section is in contact with the second bearing, and one end of the rotating section is connected to a bearing baffle.

4. A rotary suspension arm according to claim 2 or 3, characterized in that: One end of the support section of the rotating column is inserted into the seat tube, the second flange is arranged at the port of the seat tube, the first flange is arranged outside the end of the support section of the rotating column that is not inserted into the seat tube, and the first flange is in contact with the second flange.

5. The rotary suspension arm according to claim 1, characterized in that: It also includes a cantilever and a trolley, the cantilever is connected to the other end of the rotating column, the cantilever is perpendicular to the rotating column, a support plate is provided at the connection between the cantilever and the rotating column, a guide rail is provided on the cantilever, and the trolley is provided with rollers, and the trolley can move along the guide rail through the rollers.

6. The rotary suspension arm according to claim 1, characterized in that: The base also includes a first fixed bottom plate and a plurality of first fixed bolts. The seat tube is provided with a second fixed bottom plate. The first fixed bottom plate and the second fixed bottom plate are connected via the first fixed bolts.

7. The rotary suspension arm according to claim 6, characterized in that: It also includes a plurality of column foot bottom plates, which are arranged at the connection between the second fixed bottom plate and the seat tube, and are connected to the second fixed bottom plate and the seat tube.

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