Folding arm frame for lagging jack vehicle

Abstract

The utility model discloses a folding arm support for a lagging jack vehicle, which relates to the technical field of mechanical arms and comprises a connecting end, a driving unit arranged at the top end of the connecting end and a folding unit arranged at the top end of the driving unit. The driving unit comprises a main body assembly arranged at the top end of the connecting end and a stretching assembly arranged on one side of the main body assembly; the folding unit comprises a bending assembly arranged at the top end of the main body assembly and a folding assembly arranged on one side of the bending assembly and used for folding the whole arm support. According to the folding arm support for the lagging jack vehicle, the inclination angle and the height of the first-section arm can be changed, and the inclination angle and the height of one end of the second-section arm can also be changed, so that the stability and the safety of the arm support during stretching are improved, the folding effect of the arm support can be optimized, and damage is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical arms, in particular to a folding arm frame for an arch frame vehicle. Background Art

[0002] During the arch erection process of tunnel arch driving, the two or three arms of the boom need to cooperate in telescoping, pitching, swinging and sliding movements. Therefore, in the actual working process, a foldable mechanical arm is needed to assist the work.

[0003] After searching the publication (announcement) number: CN 213326452 U, a boom system and an arch vehicle with the boom system are disclosed. The boom system includes a mounting seat and a telescopic arm. The telescopic arm is mounted on the mounting seat through a transition arm. The two ends of the transition arm are respectively a first end and a second end. The first end is hinged to the mounting seat, and the telescopic arm is hinged to the second end. The boom system also includes a first drive component for driving the telescopic arm to rotate relative to the transition arm and a second drive component for driving the transition arm to rotate relative to the mounting seat. The arch vehicle includes a chassis, and more than one boom system is installed on the chassis. The utility model has the advantages of simple and compact structure, good safety, high flexibility of use, and a wide range of applications.

[0004] Although the above solution has a simple and compact structure, good safety and high flexibility, the boom needs to be optimized when extended, and the boom is easily damaged during transportation, so it needs to be able to be effectively folded to avoid damage. Utility Model Content

[0005] The main purpose of the utility model is to provide a folding boom for an arch vehicle, which solves the problem that the boom needs to be optimized when extended by providing a driving unit, and solves the problem that the boom is easily damaged during transportation, and therefore needs to be able to be effectively folded to avoid damage by providing a folding unit.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A folding boom for an arch vehicle comprises a connecting end, a driving unit arranged at the top end of the connecting end, and a folding unit arranged at the top end of the driving unit;

[0008] The driving unit includes a main body component arranged at the top end of the connecting end, and an extension component arranged at one side of the main body component;

[0009] The folding unit comprises a bending component arranged at the top end of the main component, and a folding component arranged at one side of the bending component for folding the entire arm frame.

[0010] Preferably, the main body component in the driving unit includes a base fixedly connected to the top end of the connecting end, a second rotating shaft arranged on one side of the base, and an extendable arm arranged on the surface of the second rotating shaft.

[0011] Preferably, the extension assembly in the driving unit includes a first rotating shaft arranged on the other side of the base, a first telescopic column arranged on the surface of the first rotating shaft, a first oil cylinder fixedly connected to the top end of the first telescopic column, and a third rotating shaft rotatably connected to one end of the first oil cylinder;

[0012] The third rotating shaft is located inside a section arm.

[0013] Preferably, the driving unit further comprises two cylinder balancing valve blocks arranged on one side of the first cylinder.

[0014] Preferably, the bending assembly in the folding unit includes two arms rotatably connected to the top of one arm, and a plurality of bolts arranged inside the two arms.

[0015] Preferably, the folding assembly in the folding unit includes a fourth rotating shaft arranged inside the top end of the first boom, an eighth rotating shaft arranged inside the bottom end of the second boom, a reinforcing plate fixedly connected to both sides of the first boom, a fifth rotating shaft arranged inside the second boom, a second connecting rod fixedly connected to one end of the fifth rotating shaft, a sixth rotating shaft arranged at one end of the second connecting rod, a first connecting rod rotatably connected to the surface of the sixth rotating shaft, a second oil cylinder rotatably connected to the surface of the sixth rotating shaft, a second telescopic column fixedly connected to one side of the second oil cylinder, a seventh rotating shaft rotatably connected to one end of the second telescopic column, and a connecting seat fixedly connected to the middle of the bottom end of the second boom;

[0016] The seventh rotation axis is located inside the connecting seat, and both ends of the fourth rotation axis and the eighth rotation axis extend to the inside of the reinforcing plate.

[0017] Preferably, one end of the first connecting rod is rotatably connected to a fourth rotating shaft inside the top end of a section arm.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] 1. In the utility model, through the setting of the driving unit, the first oil cylinder can be started to drive the first telescopic column to extend, thereby driving a boom section to rotate along the second rotation axis. At the same time, due to the setting of the first rotation axis, the inclination angle of a boom section and the height of a boom section can be changed. At the same time, the second oil cylinder can be started to drive the second telescopic column to extend, thereby making the two boom sections rotate along the fourth rotation axis, further changing the inclination angle and height of one end of the two boom sections, thereby improving the stability and safety of the boom when extended.

[0020] 2. In the utility model, through the setting of the folding unit, when the boom needs to be folded, the second oil cylinder can be started to drive the second telescopic column to retract, so that the two-section boom can be rotated downward along the fourth rotating axis. At the same time, under the action of the fourth rotating axis and the fifth rotating axis, the two-section boom continues to fold downward. At the same time, the first oil cylinder can be started to drive the first telescopic column to retract, so that one end of the one-section boom moves downward. This can optimize the folding effect of the boom and avoid damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0022] Figure 2 It is a left view of the utility model;

[0023] Figure 3 For this utility model Figure 1 A schematic diagram of the structure enlargement in the middle;

[0024] Figure 4 For this utility model Figure 1 Enlarged schematic diagram of the structure at point B in the middle.

[0025] In the figure:

[0026] 1. Connection end;

[0027] 2. driving unit; 201. first rotating shaft; 202. base; 203. first telescopic column; 204. second rotating shaft; 205. first arm; 206. third rotating shaft; 207. first oil cylinder; 208. oil cylinder balancing valve block;

[0028] 3. Folding unit; 301. First connecting rod; 302. Second connecting rod; 303. Reinforcing plate; 304. Fourth rotating shaft; 305. Fifth rotating shaft; 306. Second-section arm; 307. Sixth rotating shaft; 308. Second oil cylinder; 309. Second telescopic column; 310. Seventh rotating shaft; 311. Connecting seat; 312. Bolt; 313. Eighth rotating shaft. DETAILED DESCRIPTION

[0029] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods. Example 1

[0030] like Figure 1 , Figure 2 , Figure 3 as well as Figure 4 As shown, a folding boom for an arch vehicle comprises a connecting end 1, a driving unit 2 arranged at the top of the connecting end 1, and a folding unit 3 arranged at the top of the driving unit 2;

[0031] The driving unit 2 includes a main body component disposed at the top of the connecting end 1, and an extension component disposed at one side of the main body component;

[0032] The folding unit 3 includes a bending component arranged at the top of the main component, and a folding component arranged at one side of the bending component for folding the entire arm.

[0033] The main assembly of the driving unit 2 includes a base 202 fixedly connected to the top of the connecting end 1 , a second rotating shaft 204 disposed on one side of the base 202 , and an extendable arm 205 disposed on the surface of the second rotating shaft 204 .

[0034] The extension assembly in the driving unit 2 includes a first rotating shaft 201 disposed on the other side of the base 202, a first telescopic column 203 disposed on the surface of the first rotating shaft 201, a first oil cylinder 207 fixedly connected to the top of the first telescopic column 203, and a third rotating shaft 206 rotatably connected to one end of the first oil cylinder 207;

[0035] The third rotating shaft 206 is located inside the arm 205 .

[0036] The driving unit 2 further includes two cylinder balancing valve blocks 208 arranged on one side of the first cylinder 207 .

[0037] The bending assembly in the folding unit 3 includes a second arm 306 rotatably connected to the top of the first arm 205 , and a plurality of bolts 312 disposed inside the second arm 306 .

[0038] The folding assembly in the folding unit 3 includes a fourth rotating shaft 304 arranged inside the top of the first section arm 205, an eighth rotating shaft 313 arranged inside the bottom of the second section arm 306, a reinforcing plate 303 fixedly connected to both sides of the first section arm 205, a fifth rotating shaft 305 arranged inside the second section arm 306, a second connecting rod 302 fixedly connected to one end of the fifth rotating shaft 305, a sixth rotating shaft 307 arranged at one end of the second connecting rod 302, a first connecting rod 301 rotatably connected to the surface of the sixth rotating shaft 307, a second oil cylinder 308 rotatably connected to the surface of the sixth rotating shaft 307, a second telescopic column 309 fixedly connected to one side of the second oil cylinder 308, a seventh rotating shaft 310 rotatably connected to one end of the second telescopic column 309, and a connecting seat 311 fixedly connected to the middle of the bottom end of the second section arm 306;

[0039] The seventh rotation axis 310 is located inside the connecting seat 311 , and both ends of the fourth rotation axis 304 and the eighth rotation axis 313 extend to the inside of the reinforcing plate 303 .

[0040] One end of the first connecting rod 301 is rotatably connected to a fourth rotating shaft 304 inside the top end of a joint arm 205 .

[0041] The first oil cylinder 207 can be started to extend the first telescopic column 203, thereby driving the first boom 205 to rotate along the second rotating shaft 204. At the same time, due to the setting of the first rotating shaft 201, the inclination angle and the height of the first boom 205 can be changed. At the same time, the second oil cylinder 308 can be started to extend the second telescopic column 309, thereby making the second boom 306 rotate along the fourth rotating shaft 304, further changing the inclination angle and height of one end of the second boom 306, thereby improving the stability and safety of the boom when extended. Example 2

[0042] like Figure 1 , Figure 2 , Figure 3 as well as Figure 4 As shown, a folding boom for an arch vehicle comprises a connecting end 1, a driving unit 2 arranged at the top of the connecting end 1, and a folding unit 3 arranged at the top of the driving unit 2;

[0043] The driving unit 2 includes a main body component disposed at the top of the connecting end 1, and an extension component disposed at one side of the main body component;

[0044] The folding unit 3 includes a bending component arranged at the top of the main component, and a folding component arranged at one side of the bending component for folding the entire arm.

[0045] The main assembly of the driving unit 2 includes a base 202 fixedly connected to the top of the connecting end 1 , a second rotating shaft 204 disposed on one side of the base 202 , and an extendable arm 205 disposed on the surface of the second rotating shaft 204 .

[0046] The extension assembly in the driving unit 2 includes a first rotating shaft 201 disposed on the other side of the base 202, a first telescopic column 203 disposed on the surface of the first rotating shaft 201, a first oil cylinder 207 fixedly connected to the top of the first telescopic column 203, and a third rotating shaft 206 rotatably connected to one end of the first oil cylinder 207;

[0047] The third rotating shaft 206 is located inside the arm 205 .

[0048] The driving unit 2 further includes two cylinder balancing valve blocks 208 arranged on one side of the first cylinder 207 .

[0049] The bending assembly in the folding unit 3 includes a second arm 306 rotatably connected to the top of the first arm 205 , and a plurality of bolts 312 disposed inside the second arm 306 .

[0050] The folding assembly in the folding unit 3 includes a fourth rotating shaft 304 arranged inside the top of the first section arm 205, an eighth rotating shaft 313 arranged inside the bottom of the second section arm 306, a reinforcing plate 303 fixedly connected to both sides of the first section arm 205, a fifth rotating shaft 305 arranged inside the second section arm 306, a second connecting rod 302 fixedly connected to one end of the fifth rotating shaft 305, a sixth rotating shaft 307 arranged at one end of the second connecting rod 302, a first connecting rod 301 rotatably connected to the surface of the sixth rotating shaft 307, a second oil cylinder 308 rotatably connected to the surface of the sixth rotating shaft 307, a second telescopic column 309 fixedly connected to one side of the second oil cylinder 308, a seventh rotating shaft 310 rotatably connected to one end of the second telescopic column 309, and a connecting seat 311 fixedly connected to the middle of the bottom end of the second section arm 306;

[0051] The seventh rotation axis 310 is located inside the connecting seat 311 , and both ends of the fourth rotation axis 304 and the eighth rotation axis 313 extend to the inside of the reinforcing plate 303 .

[0052] One end of the first connecting rod 301 is rotatably connected to a fourth rotating shaft 304 inside the top end of a joint arm 205 .

[0053] When the boom needs to be folded, the second oil cylinder 308 can be started to drive the second telescopic column 309 to retract, so that the second boom 306 can rotate downward along the fourth rotating shaft 304. At the same time, under the action of the fourth rotating shaft 304 and the fifth rotating shaft 305, the second boom 306 continues to fold downward. At the same time, the first oil cylinder 207 can be started to drive the first telescopic column 203 to retract, so that one end of the first boom 205 moves downward. This can optimize the folding effect of the boom and avoid damage.

[0054] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A folding boom for an arch vehicle, comprising a connecting end (1), characterized in that: It also includes a driving unit (2) arranged at the top end of the connecting end (1), and a folding unit (3) arranged at the top end of the driving unit (2); The driving unit (2) comprises a main body component arranged at the top end of the connecting end (1), and an extension component arranged at one side of the main body component; The folding unit (3) comprises a bending component arranged at the top end of the main body component, and a folding component arranged at one side of the bending component and used for folding the entire arm frame.

2. The folding boom for an arch vehicle according to claim 1, characterized in that: The main body component in the driving unit (2) comprises a base (202) fixedly connected to the top end of the connecting end (1), a second rotating shaft (204) arranged on one side of the base (202), and an extendable arm (205) arranged on the surface of the second rotating shaft (204).

3. The folding boom for an arch vehicle according to claim 2, characterized in that: The extension assembly in the driving unit (2) comprises a first rotating shaft (201) arranged on the other side of the base (202), a first telescopic column (203) arranged on the surface of the first rotating shaft (201), a first oil cylinder (207) fixedly connected to the top of the first telescopic column (203), and a third rotating shaft (206) rotatably connected to one end of the first oil cylinder (207); The third rotating shaft (206) is located inside a section arm (205).

4. The folding boom for an arch vehicle according to claim 3, characterized in that: The drive unit (2) further comprises two oil cylinder balancing valve blocks (208) arranged on one side of the first oil cylinder (207).

5. The folding boom for an arch vehicle according to claim 4, characterized in that: The bending assembly in the folding unit (3) comprises a second arm (306) rotatably connected to the top end of a first arm (205), and a plurality of bolts (312) arranged inside the second arm (306).

6. The folding boom for an arch vehicle according to claim 5, characterized in that: The folding assembly in the folding unit (3) comprises a fourth rotating shaft (304) arranged inside the top end of the first-section arm (205), an eighth rotating shaft (313) arranged inside the bottom end of the second-section arm (306), a reinforcing plate (303) fixedly connected to both sides of the first-section arm (205), a fifth rotating shaft (305) arranged inside the second-section arm (306), a second connecting rod (302) fixedly connected to one end of the fifth rotating shaft (305), a sixth rotating shaft (307) arranged at one end of the second connecting rod (302), a first connecting rod (301) rotatably connected to the surface of the sixth rotating shaft (307), a second oil cylinder (308) rotatably connected to the surface of the sixth rotating shaft (307), a second telescopic column (309) fixedly connected to one side of the second oil cylinder (308), a seventh rotating shaft (310) rotatably connected to one end of the second telescopic column (309), and a connecting seat (311) fixedly connected to the middle of the bottom end of the second-section arm (306); The seventh rotating shaft (310) is located inside the connecting seat (311), and both ends of the fourth rotating shaft (304) and the eighth rotating shaft (313) extend to the inside of the reinforcing plate (303).

7. The folding boom for an arch vehicle according to claim 6, characterized in that: One end of the first connecting rod (301) is rotatably connected to a fourth rotating shaft (304) inside the top end of a section arm (205).

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