Internal supporting structure of balance block of arm type overhead working truck

Abstract

The invention relates to the technical field of engineering machinery, and discloses an arm type overhead working truck balance block internal supporting structure which comprises a supporting framework arranged in a balance block shell, and the balance block shell comprises a main shell body and supporting shell bodies symmetrically arranged at the lower end of the main shell body; the supporting framework comprises a pair of main vertical plates, a transverse connecting plate for connecting the two main vertical plates and supporting leg connecting parts fixed at the lower ends of the main vertical plates; the supporting leg connecting part is fixed in the supporting shell; the upper end of the main vertical plate is fixedly connected with an upper side plate A of the main shell; an inclined supporting plate is fixed to the rear side wall of the main vertical plate, and the rear end of the inclined supporting plate is fixedly connected with a rear side plate A of the main shell. The supporting framework is arranged in the balance block shell, so that the overall extrusion and tensile strength of the balance block shell can be effectively improved, and the bad problems of shell deformation, gravity center displacement and the like can be effectively solved.

Description

Technical Field

[0001] The invention relates to the technical field of engineering machinery, and in particular to an internal supporting structure of a balance block of an arm-type aerial work vehicle. Background Art

[0002] The operating range and height of aerial work platforms, telescopic forklifts, cranes and other construction machinery vary greatly during operation. The overturning moment caused by different operating ranges, operating heights and different loads varies greatly. Setting a balance block (counterweight) is an important measure to increase the stability moment. The existing counterweight block of construction machinery includes a shell welded from iron plates and counterweight concrete poured into the shell. Since its filling weight is about 3.5 tons, its shell is prone to deformation, and the center of gravity of the entire balance block may even collapse unexpectedly, which has caused safety hazards and increased maintenance costs. Summary of the invention

[0003] The purpose of the present invention is to provide an internal support structure for a balance block of an arm-type aerial work vehicle. By arranging a support frame inside the balance block shell, the overall compression and tensile strength of the balance block shell can be effectively improved, and problems such as shell deformation and center of gravity shift can be effectively solved.

[0004] The above technical objectives of the present invention are achieved through the following technical solutions: An internal support structure of a balance block of an arm-type aerial work vehicle comprises a support frame arranged in a balance block housing, wherein the balance block housing comprises a main housing and a support housing symmetrically arranged at the lower end of the main housing; The support frame includes a pair of main vertical plates, a transverse connecting plate connecting the two main vertical plates, and a support leg connecting portion fixed to the lower end of the main vertical plates; the support leg connecting portion is fixed in the support shell; the upper end of the main vertical plate is fixedly connected to the upper side plate A of the main shell; An oblique support plate is fixed on the rear side wall of the main vertical plate, and the rear end of the oblique support plate is fixedly connected to the rear side plate A of the main shell.

[0005] By setting a support frame inside the balance block, the overall strength of the balance block shell is improved, and after the counterweight concrete is poured inside, deformation and center of gravity shift will not occur. At the same time, after the counterweight concrete solidifies, the support frame can improve the tensile strength of the concrete, ensure the integrity of the counterweight concrete, and reduce the risk of its breakage. Specifically, the main vertical plate connecting the shell and the support shell allows the entire balance block shell to be supported and resist tension in the vertical direction; the horizontal connecting plate can fix the relative positions of the two main vertical plates, and can also allow the entire balance block shell to be supported and resist tension in the horizontal direction; the support foot connection can effectively improve the connection tightness with the support shell, and the inclined support plate can support the rear side plate A and strengthen the connection with the support frame, which can prevent the rear of the main shell from collapsing.

[0006] The present invention is further configured as follows: the support leg connection portion includes a bottom support plate fixed to the bottom of the main vertical plate, the bottom support plate is formed with a square opening with a lower side opening, a vertical short column A is inserted and fixed in the direction opening; the lower end of the vertical short column A is abutted against and fixed on the lower bottom plate B of the support shell; The front end of the bottom support plate is fixed with a longitudinal connecting plate, the front end of the longitudinal connecting plate is fixed with an "L"-shaped plate, the front end of the "L"-shaped plate is fixed with a longitudinal support plate, and the longitudinal support plate is sleeved and fixed with a longitudinal short column; the outer end of the "L"-shaped plate is fixed with a vertical support plate, and the vertical support plate is fixed with a vertical short column B; The front end of the longitudinal short column is abutted against and fixed on the front side plate B of the support shell, and the upper end of the vertical short column B is abutted against and fixed on the upper side plate B of the support shell.

[0007] The vertical short column A, vertical short column B and longitudinal short column can effectively balance the connection strength of the block shell in the vertical and longitudinal directions; The contact area with the corresponding side wall of the support shell can be increased through the end surface of the short column, thereby effectively improving the corresponding support performance.

[0008] The present invention is further configured as follows: a transverse plate and an oblique plate are fixed on the outer side wall of the main vertical plate, the outer end of the oblique plate is flush with the outer end of the transverse plate and is fixedly arranged; the outer end of the oblique plate and the outer end of the transverse plate are abutted against and fixed on the upper side plate B; The main vertical plates, transverse plates and oblique plates form a triangular support structure.

[0009] The tensile strength of the supporting shell can be increased by the transverse plate and the inclined plate. At the same time, the counterweight concrete poured in the main shell and the left and right side walls of the main shell can be radially supported. The three form a triangular supporting stable structure, which can further improve the supporting strength.

[0010] The present invention is further configured as follows: the lower end of the oblique plate abuts against the upper end surface of the bottom support plate, which can improve the bottom support strength of the oblique plate; The rear lower end of the longitudinal connecting plate abuts against the upper end of the vertical short column A, and the rear upper end of the longitudinal connecting plate is fixedly connected to the main vertical plate, so that the longitudinal connecting plate, the main vertical plate and the vertical short column can be combined into one, which can further improve the connection stability and connection strength of this frame.

[0011] The present invention is further configured as follows: each of the outer ends of the vertical short column A, the longitudinal short column and the vertical short column B is formed with a boss, and a threaded hole is formed on the boss; The corresponding side walls of the support shell are formed with clearance holes corresponding to the bosses. The bosses and the clearance holes can facilitate the positioning of the vertical short column A, the longitudinal short column and the vertical short column B, and can also facilitate the welding of the entire support frame and the entire shell in the later stage; the entire balance block after the weighted concrete is poured can be fixed on the corresponding engineering machinery through the threaded holes.

[0012] The present invention is further configured as follows: the front side plate A of the main housing is configured to be inclined; The upper end of the main vertical plate is fixed with a supporting horizontal plate and a right-angled trapezoidal support plate. The upper end of the main vertical plate, the upper end of the supporting horizontal plate and the upper end of the right-angled trapezoidal support plate are arranged flush and fixed on the upper side plate A, which can increase the support area and support strength of the upper side plate A; The inclined surface of the right-angle trapezoidal support plate is abutted against and fixed on the front side plate A, which can enhance the connection stability with the front side plate A and further improve the strength of the front side plate A, thereby reducing the risk of deformation.

[0013] The present invention is further configured as follows: an oblique support is fixed between the upper side plate A and the lower bottom plate A in the middle of the main shell, an oblique pull plate is fixed in the middle of the oblique support, and the rear end of the oblique pull plate is fixedly connected to the rear side plate A. The oblique support can further improve the connection stability between the upper side plate A and the lower bottom plate A of the main shell, as well as the mutual support and compression strength between the two; the oblique pull plate can provide a pulling force to the rear side plate A to prevent it from deforming and collapsing downward and backward.

[0014] The rear side plate A is formed with a reinforcement groove, and the reinforcement groove can increase the structural strength of the rear side plate A itself and also make the appearance of the entire balance block more beautiful.

[0015] The present invention is further configured as follows: the main shell is arranged at the rear end of the supporting shell, and the main shell is arranged to be small at the top and large at the bottom, so that the overall center of gravity of the balance block can be moved outward, which can further improve the stability and safety of the engineering machinery during operation.

[0016] The outstanding effects of the present invention are: Compared with the prior art, by arranging a support frame inside the balancing weight shell, the overall compression and tensile strength of the balancing weight shell can be effectively improved, and the problems of shell deformation, center of gravity shift, etc. can be effectively solved; The supporting frame can increase the tensile strength of the counterweight concrete filled inside the balancing block shell to ensure its integrity. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a right side view of the present invention; Figure 3 It is a schematic structural diagram of the support frame of the present invention; Figure 4 for Figure 3 A partial enlarged view of A; Figure 5 This is a schematic diagram of the structure of the present invention without the rear side plate A; Figure 6 Other side views of the support frame of the present invention; Figure 7 It is a cross-sectional view of the present invention.

[0018] Reference numerals: 1, balancing weight housing; 10, main housing; 11, supporting housing; 101, upper side plate A; 102, rear side plate A; 103, front side plate A; 105, reinforcement groove; 111. lower bottom plate B; 112. front side plate B; 113. upper side plate B; 2. Support frame; 20. Main vertical board; 21. Horizontal connecting board; 22. Support foot connection part; 23. Oblique support board; 24. Horizontal board; 25. Oblique board; 26. Support horizontal board; 27. Right-angle trapezoidal support board; 28. Oblique support; 29. ​​Diagonal board; 221, bottom support plate; 222, vertical short column A; 223, longitudinal connecting plate; 225, "L"-shaped plate; 226, longitudinal support plate; 227, longitudinal short column; 228, vertical support plate; 229, vertical short column B; 2000, boss; 2001, threaded hole; 2211, square mouth;. DETAILED DESCRIPTION

[0019] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0020] The following references Figures 1 to 7 The present invention is described: An internal support structure for a balance block of an arm-type aerial work vehicle, such as Figure 1 , Figure 2 As shown, it includes a support frame 2 arranged in a balancing weight housing 1, and the balancing weight housing 1 includes a main housing 10 and a support housing 11 symmetrically arranged at the lower end of the main housing 10; The support frame 2 includes a pair of main vertical plates 20, a transverse connecting plate 21 connecting the two main vertical plates 20, and a support leg connecting portion 22 fixed to the lower end of the main vertical plates 20; the support leg connecting portion 22 is fixed in the support shell 11; the upper end of the main vertical plate 20 is fixedly connected to the upper side plate A101 of the main shell 10; An oblique support plate 23 is fixed on the rear side wall of the main vertical plate 20 , and the rear end of the oblique support plate 23 is fixedly connected to the rear side plate A102 of the main shell 10 .

[0021] By setting a support frame inside the balance block, the overall strength of the balance block shell is improved, and after the counterweight concrete is poured inside, deformation and center of gravity shift will not occur. At the same time, after the counterweight concrete solidifies, the support frame can improve the tensile strength of the concrete, ensure the integrity of the counterweight concrete, and reduce the risk of its breakage. Specifically, the main vertical plate connects the main shell and the support shell so that the entire balance block shell is supported and resisted in the vertical direction; the relative positions of the two main vertical plates can be fixed by the transverse connecting plate, and the entire balance block shell can be supported and resisted in the transverse direction; the connection tightness with the support shell can be effectively improved by the support foot connection part, and the rear side plate A can be supported and the connection with the support frame can be strengthened by the inclined support plate, so as to prevent the rear of the main shell from collapsing.

[0022] like Figure 1 , Figure 4 , Figure 5 As shown, the support leg connecting portion 22 of this embodiment includes a bottom support plate 221 fixed to the bottom of the main vertical plate 20, and the bottom support plate 221 is formed with a square opening 2211 with an opening at the bottom side, and a vertical short column A222 is inserted and fixed in the direction opening 2211; the lower end of the vertical short column A222 is abutted against and fixed on the lower bottom plate B111 of the support shell 11; A longitudinal connecting plate 223 is fixed to the front end of the bottom supporting plate 221, an "L"-shaped plate 225 is fixed to the front end of the longitudinal connecting plate 223, a longitudinal supporting plate 226 is fixed to the front end of the "L"-shaped plate 225, and a longitudinal short column 227 is sleeved and fixed to the longitudinal supporting plate 226; a vertical supporting plate 228 is fixed to the outer end of the "L"-shaped plate 225, and a vertical short column B229 is fixed to the vertical supporting plate 228; The front end of the longitudinal short column 227 is abutted against and fixed to the front side plate B112 of the support shell 11 , and the upper end of the vertical short column B229 is abutted against and fixed to the upper side plate B113 of the support shell 11 .

[0023] The vertical short column A, vertical short column B and longitudinal short column can effectively balance the connection strength of the block shell in the vertical and longitudinal directions; The contact area with the corresponding side wall of the support shell can be increased through the end surface of the short column, thereby effectively improving the corresponding support performance.

[0024] like Figure 5 , Figure 6 As shown, a transverse plate 24 and an oblique plate 25 are fixed to the outer side wall of the main vertical plate 20 of this embodiment, and the outer end of the oblique plate 25 is flush with the outer end of the transverse plate 24 and is fixedly arranged; the outer end of the oblique plate 25 and the outer end of the transverse plate 24 are abutted against and fixed to the upper side plate B113; The main vertical plate 20, the transverse plate 24 and the oblique plate 25 form a triangular support structure.

[0025] The transverse plate 24 and the inclined plate 25 can increase the tensile strength of the supporting shell, and can provide radial support to the counterweight concrete poured in the main shell and the left and right side walls of the main shell, forming a triangular supporting stable structure, thereby further improving the supporting strength.

[0026] The lower end of the inclined plate 25 abuts against the upper end surface of the bottom support plate 221, which can improve the bottom support strength of the inclined plate; The rear lower end of the longitudinal connecting plate 223 abuts against the upper end of the vertical short column A222, and the rear upper end of the longitudinal connecting plate 223 is fixedly connected to the main vertical plate 20, so that the longitudinal connecting plate, the main vertical plate and the vertical short column can be combined into one, which can further improve the connection stability and connection strength of this frame.

[0027] like Figure 6 , Figure 7 As shown, the outer ends of the vertical short column A222, the longitudinal short column 227 and the vertical short column B229 of this embodiment are each formed with a boss 2000, and the boss 2000 is formed with a threaded hole 2001; The corresponding side wall of the support shell 11 is formed with a clearance hole 114 corresponding to the boss 2000. The boss and the clearance hole can facilitate the positioning of the vertical short column A222, the longitudinal short column 227 and the vertical short column B229, and can also facilitate the welding of the entire support frame and the entire shell in the later stage; the entire balance block after the weighted concrete is poured can be fixed on the corresponding engineering machinery through the threaded hole.

[0028] like Figure 6 , Figure 7 As shown, the front side plate A103 of the main housing 10 of this embodiment is tilted; The upper end of the main vertical plate 20 is fixed with a supporting horizontal plate 26 and a right-angled trapezoidal support plate 27. The upper end of the main vertical plate 20, the upper end of the supporting horizontal plate 26 and the upper end of the right-angled trapezoidal support plate 27 are flushly arranged and fixed on the upper side plate A101, which can increase the supporting area and supporting strength of the upper side plate A. The inclined surface of the right-angled trapezoidal support plate 27 is abutted against and fixed on the front side plate A103, which can enhance the connection stability with the front side plate A and further improve the strength of the front side plate A, thereby reducing the risk of deformation.

[0029] The present invention is further configured as follows: an oblique support 28 is fixed between the upper side plate A101 and the lower bottom plate A104 in the middle of the main housing 10, an oblique pull plate 29 is fixed in the middle of the oblique support 28, and the rear end of the oblique pull plate 29 is fixedly connected to the rear side plate A102. The oblique support can further improve the connection stability between the upper side plate A and the lower bottom plate A of the main housing, as well as the mutual support and compression strength between the two; the oblique pull plate can provide a pulling force to the rear side plate A to prevent it from deforming and collapsing downward and backward.

[0030] The rear side plate A102 is formed with a reinforcement groove 105. The reinforcement groove can increase the structural strength of the rear side plate A itself and make the appearance of the entire balance block more beautiful.

[0031] The main housing 10 of the present embodiment is arranged at the rear end of the supporting housing 11. The main housing 10 is arranged to be small at the top and large at the bottom, which can move the overall center of gravity of the balancing block outward, and can further improve the stability and safety of the engineering machinery during operation.

[0032] 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 of the above assumptions should also be regarded as the scope of protection of the present invention.

Claims

1. An internal support structure of a balance block of a boom-type aerial work vehicle, comprising a support frame (2) arranged in a balance block housing (1), Features: The balancing weight housing (1) comprises a main housing (10) and a supporting housing (11) symmetrically arranged at the lower end of the main housing (10); The support frame (2) comprises a pair of main vertical plates (20), a transverse connecting plate (21) connecting the two main vertical plates (20), and a support leg connecting portion (22) fixed to the lower ends of the main vertical plates (20); the support leg connecting portion (22) is fixed in the support shell (11); the upper ends of the main vertical plates (20) are fixedly connected to the upper side plate A (101) of the main shell (10); An oblique support plate (23) is fixed to the rear side wall of the main vertical plate (20), and the rear end of the oblique support plate (23) is fixedly connected to the rear side plate A (102) of the main shell (10).

2. The internal support structure of the balance block of a boom-type aerial work vehicle according to claim 1, Features: The support leg connection portion (22) comprises a bottom support plate (221) fixed to the bottom of the main vertical plate (20); the bottom support plate (221) is formed with a square opening (2211) with a lower opening; a vertical short column A (222) is inserted and fixed in the direction opening (2211); the lower end of the vertical short column A (222) is abutted against and fixed to the lower bottom plate B (111) of the support shell (11); A longitudinal connecting plate (223) is fixed to the front end of the bottom supporting plate (221), an "L"-shaped plate (225) is fixed to the front end of the longitudinal connecting plate (223), a longitudinal supporting plate (226) is fixed to the front end of the "L"-shaped plate (225), and a longitudinal short column (227) is sleeved and fixed to the longitudinal supporting plate (226); a vertical supporting plate (228) is fixed to the outer end of the "L"-shaped plate (225), and a vertical short column B (229) is fixed to the vertical supporting plate (228); The front end of the longitudinal short column (227) is abutted against and fixed to the front side plate B (112) of the support shell (11), and the upper end of the vertical short column B (229) is abutted against and fixed to the upper side plate B (113) of the support shell (11).

3. The internal support structure of the balance block of an arm-type aerial work vehicle according to claim 2, Features: A transverse plate (24) and an oblique plate (25) are fixed to the outer side wall of the main vertical plate (20), and the outer end of the oblique plate (25) is flush with the outer end of the transverse plate (24) and is fixedly arranged; the outer end of the oblique plate (25) and the outer end of the transverse plate (24) are abutted against and fixed to the upper side plate B (113); The main vertical plate (20), the transverse plate (24) and the oblique plate (25) form a triangular support structure.

4. The internal support structure of the balance block of a boom-type aerial work vehicle according to claim 3, Features: The lower end of the inclined plate (25) abuts against the upper end surface of the bottom support plate (221); The rear lower end of the longitudinal connecting plate (223) abuts against the upper end of the vertical short column A (222), and the rear upper end of the longitudinal connecting plate (223) is fixedly connected to the main vertical plate (20).

5. The internal support structure of the balance block of a boom-type aerial work vehicle according to claim 2, Features: The outer ends of the vertical short column A (222), the longitudinal short column (227) and the vertical short column B (229) are each formed with a boss (2000), and a threaded hole (2001) is formed on the boss (2000); A clearance through hole (114) corresponding to the boss (2000) is formed on the corresponding side wall of the support shell (11).

6. The internal support structure of the balance block of a boom-type aerial work vehicle according to claim 1, Features: The front side plate A (103) of the main housing (10) is arranged tilted; A supporting transverse plate (26) and a right-angled trapezoidal support plate (27) are fixed to the upper end of the main vertical plate (20); the upper end of the main vertical plate (20), the upper end of the supporting transverse plate (26) and the upper end of the right-angled trapezoidal support plate (27) are arranged flush and fixed to the upper side plate A (101); The inclined surface of the right-angled trapezoidal support plate (27) is abutted against and fixed on the front side plate A (103).

7. The internal support structure of the balance block of a boom-type aerial work vehicle according to claim 1, Features: An oblique support (28) is fixed between the upper side plate A (101) and the lower bottom plate A (104) in the middle of the main shell (10), an oblique support plate (29) is fixed in the middle of the oblique support (28), and the rear end of the oblique support plate (29) is fixedly connected to the rear side plate A (102).

8. The internal support structure of the balance block of a boom-type aerial work vehicle according to claim 7, Features: A reinforcement groove (105) is formed on the rear side plate A (102).

9. The internal support structure of the balance block of a boom-type aerial work vehicle according to claim 1, Features: The main housing (10) is arranged at the rear end of the supporting housing (11), and the main housing (10) is arranged to be smaller at the top and larger at the bottom.

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