Engineering machinery and balancing weight

Abstract

The utility model discloses an engineering machine and a balancing weight, and the engineering machine comprises a balance arm, the balancing weight, a balancing weight protection assembly and a plurality of groups of anti-collision limiting assemblies. The balancing weight protection assembly comprises a lower protection cover, an upper protection cover is fixedly assembled above the balance arm, the lower protection cover and the upper protection cover are matched to form a protection cover shell, a pair of fixing frames is assembled in the upper protection cover in an inserted mode, and moisture-proof pads are fixedly assembled in the pair of fixing frames. The anti-collision limiting assembly comprises an anti-collision isolation plate, and limiting air bag cushions are fixedly connected to the two sides of the anti-collision isolation plate. According to the engineering machinery disclosed by the utility model, the balancing weight protection component is arranged, so that the balancing weight can be sealed and subjected to anti-collision protection, and the conditions that the balancing weight of a tower crane is cracked and the corners fall off due to the influence of environment and self factors in the long-time use process are reduced; and the use safety of the tower crane and the use reliability of the balancing weight are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to engineering machinery technical field, concretely relates to an engineering machinery and counterweight. BACKGROUND

[0002] Engineering machinery is a kind of comprehensive mechanized construction equipment for hoisting and unloading operation and construction engineering, wherein, tower crane is a kind of engineering machinery for vertical and horizontal conveying of construction engineering materials, one end of tower crane balance arm is usually equipped with counterweight, and the balance arm is balanced by arranging counterweight on balance arm.

[0003] Most of the counterweight of the prior art tower crane is exposed, without counterweight protection function, so that the counterweight of the tower crane is easily affected by the environment and its own factors to weather, collision in the actual application process, so that the counterweight of the tower crane is prone to cracking, corner falling off and other problems in long-term use, so that the use safety of the tower crane and the use reliability of the counterweight are poor.

[0004] Therefore, in view of the above technical problems, it is necessary to provide an engineering machinery and counterweight.

[0005] The information disclosed in this background section is intended only to increase an understanding of the general background of the present utility model and should not be construed as an acknowledgment or any form of suggestion that this information constitutes prior art with respect to the present utility model. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing an engineering machinery and counterweight, which can protect the counterweight of the tower crane, improve the use safety of the tower crane and the use reliability of the counterweight.

[0007] In order to achieve the above-mentioned purpose, the utility model provides an engineering machinery in a specific embodiment, which comprises a balance arm, a counterweight, a counterweight protection assembly and a plurality of anti-collision limiting assemblies.

[0008] One end of the balance arm is equipped with a plurality of counterweights.

[0009] The counterweight protection assembly is assembled on the outer side of the plurality of counterweights, and the counterweight protection assembly comprises a lower protective cover, the lower protective cover is fixedly assembled below the balance arm, an upper protective cover is fixedly assembled above the balance arm, the lower protective cover and the upper protective cover are both sleeved on the outer side of the plurality of counterweights, and the lower protective cover and the upper protective cover cooperate to form a protective cover shell, a pair of fixed frames are inserted and assembled in the upper protective cover, and a moisture-proof pad is fixedly assembled in each fixed frame.

[0010] A plurality of said anti-collision limiting components are arranged between a plurality of counterweights, the anti-collision limiting component comprises an anti-collision isolation plate, the anti-collision isolation plate is inserted and assembled between a plurality of counterweights, and the two sides of the anti-collision isolation plate are fixedly connected with a limiting air bag cushion.

[0011] In one or more embodiments of the utility model, the two sides of a plurality of said counterweights are fixedly assembled with support pin shafts. The support pin shafts are assembled and limited to load and limit the plurality of counterweights. A plurality of support positioning blocks are fixedly connected to the balance arm, and the plurality of support pin shafts are arranged on the plurality of support positioning blocks. The support positioning blocks support and limit the support pin shafts.

[0012] In one or more embodiments of the utility model, the upper part of a pair of said fixed frames is fixedly connected with a top plate. The top plate is assembled and limited to the fixed frame. An assembly avoidance hole matched with the fixed frame and the top plate is formed in the upper part of the upper protective cover. The assembly avoidance hole facilitates the convenient assembly of the fixed frame and the top plate.

[0013] In one or more embodiments of the utility model, the two sides of the anti-collision isolation plate are fixedly connected with limiting shafts. The limiting shafts are supported and limited to assemble and limit the anti-collision isolation plate. A plurality of supporting blocks are fixedly connected to the balance arm, the limiting shafts are arranged on the supporting blocks, and the plurality of supporting blocks are distributed alternately with the support positioning blocks. The supporting blocks assemble and limit the limiting shafts.

[0014] In one or more embodiments of the utility model, a plurality of assembly avoidance holes matched with the support pin shafts and the limiting shafts are formed in the bottom of the fixed frame. The support pin shafts and the limiting shafts are clamped and limited by the cooperation of the fixed frame, the support pin shafts and the limiting shafts. One pair of disassembly handles are fixedly connected to the end of the top plate outside the upper protective cover. The fixed frame is conveniently disassembled by pulling the disassembly handle.

[0015] In one or more embodiments of the utility model, a compression gas box is fixedly assembled above the anti-collision isolation plate. The gas in the compression gas box is compressed and delivered by the cooperation of the compression gas box and the piston block. The piston block is slidably assembled in the compression gas box, and the compression gas box and the piston block cooperate to form a compression control gas cavity. The compression control gas cavity is compressed controlled by controlling the movement of the piston block, so as to facilitate the compression and delivery of the gas in the compression control gas cavity.

[0016] In one or more embodiments of the utility model, the compression control air cavity is internally provided with a limiting spring. The limiting spring is contracted and reset to support and limit the piston block. The piston block is rotatably connected with an adjusting bolt rod on the side away from the limiting spring. The adjusting bolt rod is arranged through the compression air box and is threadedly connected with the compression air box. The adjusting bolt rod supports and limits the piston block and moves the piston block in the compression control cavity by controlling the rotation of the adjusting bolt rod.

[0017] In one or more embodiments of the utility model, one end of the compression air box is fixedly connected with an exhaust pipe in the anti-collision isolation plate. The exhaust pipe is in communication with the compression control air cavity. The exhaust pipe transports and discharges the air in the compression control air cavity.

[0018] In one or more embodiments of the utility model, a plurality of uniformly distributed guide air pipes are connected between the exhaust pipe and the limiting air bag cushion. The guide air pipes are in communication with the exhaust pipe and the limiting air bag cushion, so that the air in the exhaust pipe is transported to the limiting air bag cushion along the guide air pipes, thereby facilitating the expansion control of the limiting air bag cushion.

[0019] An engineering counterweight block is assembled in the engineering machinery.

[0020] Compared with the prior art, the utility model discloses an engineering machinery. The counterweight block is closed and protected from collision by the counterweight block protection assembly, so that the cracking and corner shedding of the counterweight block of the tower crane during long-term use due to environmental and self factors are reduced, and the use safety of the tower crane and the use reliability of the counterweight block are improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed in the embodiment or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the utility model. Those skilled in the art can obtain other drawings according to the drawings without creating any creative labor.

[0022] Figure 1 It is a perspective view of the engineering machinery in an embodiment of the utility model;

[0023] Figure 2 It is a partial structure schematic view of the engineering machinery in an embodiment of the utility model;

[0024] Figure 3 It is Figure 2 a structure schematic view of A in the embodiment of the utility model;

[0025] Figure 4 It is the sectional view of the anti-collision limiting assembly in one embodiment of the utility model;

[0026] Figure 5 It is the sectional view of the anti-collision limiting assembly in one embodiment of the utility model;

[0027] Figure 6 It is Figure 5 The structure schematic diagram in B place in middle;

[0028] Figure 7 It is the sectional view of the anti-collision limiting assembly in one embodiment of the utility model;

[0029] Main figure mark explanation:

[0030] 1-balancing arm, 101-weight block, 102-supporting pin shaft, 103-supporting positioning block, 2-weight block protection assembly, 201-lower protection cover, 202-upper protection cover, 203-fixing frame, 204-moisture-proof pad, 205-top plate, 206-disassembly handle, 3-anti-collision limiting assembly, 301-anti-collision isolation plate, 302-limiting air bag pad, 303-limiting shaft, 304-bearing block, 305-compressed gas box, 306-piston block, 307-limiting spring, 308-adjusting bolt rod, 309-exhaust pipe, 310-guiding air pipe. Specific implementation

[0031] In order to make the person in the art better understand the technical scheme in the utility model, the technical scheme in the embodiment of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without creative labor should belong to the protection scope of the utility model.

[0032] As Figures 1 to 7 Indicated, one engineering machinery in one embodiment of the utility model, including: balancing arm 1, weight block 101, weight block protection assembly 2, multiple anti-collision limiting assemblies 3.

[0033] As Figures 2 to 3 Indicated, the one end of balancing arm 1 is equipped with multiple weight blocks 101. Through multiple weight blocks 101, the balancing arm 1 is balanced.

[0034] As Figures 2 to 3As shown, the two sides of the plurality of counterweights 101 are fixedly assembled with support pin shafts 102. The plurality of counterweights 101 is loaded and limited by assembling and limiting the support pin shafts 102. The balance arm 1 is fixedly connected with a plurality of support positioning blocks 103, and the plurality of support pin shafts 102 are arranged on the plurality of support positioning blocks 103. The support positioning blocks 103 play a supporting and limiting role on the support pin shafts 102.

[0035] As shown in the Figures 1 to 2 counterweight protection assembly 2 is assembled outside the plurality of counterweights 101, and the counterweight protection assembly 2 includes a lower protective cover 201 fixedly assembled below the balance arm 1, and an upper protective cover 202 fixedly assembled above the balance arm 1. The plurality of counterweights 101 is protected by the cooperation of the lower protective cover 201 and the upper protective cover 202, which reduces the weathering and cracking of the plurality of counterweights 101 in the use process.

[0036] Specifically, the upper side of the upper protective cover 202 is provided with an assembly avoidance hole matched with the fixed frame 203 and the top plate 205. The assembly avoidance hole facilitates the convenient assembly of the fixed frame 203 and the top plate 205.

[0037] The lower protective cover 201 and the upper protective cover 202 are both sleeved outside the plurality of counterweights 101, and the lower protective cover 201 and the upper protective cover 202 cooperate to form a protective cover shell, and the upper protective cover 202 is inserted and assembled with a pair of fixed frames 203,

[0038] As shown in the Figures 2 to 3 The upper side of the pair of fixed frames 203 is fixedly connected with a top plate 205. The fixed frame 203 is assembled and limited by the top plate 205.

[0039] As shown in the Figures 2 to 3 A pair of fixed frames 203 are fixedly assembled with a moisture-proof pad 204. The moisture-proof pad 204 prevents moisture absorption in the air in the protective cover shell, improving the protection effect of the plurality of counterweights 101.

[0040] Specifically, the bottom of the fixed frame 203 is provided with a plurality of assembly avoidance holes matched with the support pin shaft 102 and the limiting shaft 303. The fixed frame 203 cooperates with the support pin shaft 102 and the limiting shaft 303 to assist in clamping and limiting the support pin shaft 102 and the limiting shaft 303.

[0041] As shown in the Figures 2 to 3 The end of the top plate 205 outside the upper protective cover 202 is fixedly connected with a pair of disassembly handles 206. The fixed frame 203 is conveniently disassembled by pulling the disassembly handle 206.

[0042] As shown in the Figures 2 to 4As shown, the plurality of anti-collision limiting components 3 are arranged between the plurality of counterweights 101, and the anti-collision limiting component 3 comprises an anti-collision isolation plate 301 which is inserted and assembled between the plurality of counterweights 101. The plurality of counterweights 101 are separated and limited by the plurality of anti-collision isolation plates 301.

[0043] As shown in the Figures 2 to 4 two sides of the anti-collision isolation plate 301 are fixedly connected with a limiting shaft 303. The anti-collision isolation plate 301 is assembled and limited by supporting and limiting the limiting shaft 303. A plurality of supporting blocks 304 are fixedly connected to the balance arm 1, and the limiting shaft 303 is arranged on the supporting blocks 304. The plurality of supporting blocks 304 are distributed alternately with the supporting and positioning blocks 103. The supporting blocks 304 play a role in assembling and limiting the limiting shaft 303.

[0044] As shown in the Figure 4 two sides of the anti-collision isolation plate 301 are fixedly connected with a limiting air bag cushion 302. The plurality of counterweights 101 are buffered and limited by the limiting air bag cushion 302, which reduces the situation of mutual collision of the plurality of counterweights 101.

[0045] The anti-collision isolation plate 301 is fixedly assembled with a compression gas box 305. The gas in the compression gas box 305 is compressed and delivered by the cooperation of the compression gas box 305 and the piston block 306. The compression gas box 305 is slidably assembled with the piston block 306, and the compression gas box 305 cooperates with the piston block 306 to form a compression control gas cavity. The compression control gas cavity is compressed and controlled by controlling the movement of the piston block 306, so as to facilitate the compression and delivery of the gas in the compression control gas cavity.

[0046] As shown in the Figures 5 to 6 the inside of the compression control gas cavity is provided with a limiting spring 307. The limiting spring 307 plays a role in supporting and limiting the piston block 306 by contraction and reset.

[0047] As shown in the Figures 5 to 6 the side of the piston block 306 away from the limiting spring 307 is rotatably connected with an adjusting bolt rod 308, the adjusting bolt rod 308 penetrates the compression gas box 305 and is threadedly connected with the compression gas box 305. The adjusting bolt rod 308 plays a role in supporting and limiting the piston block 306 and movement control. By controlling the rotation of the adjusting bolt rod 308, the adjusting bolt rod 308 drives the piston block 306 to move in the compression control cavity under the action of the internal and external threads.

[0048] As shown in the Figures 5 to 6 one end of the compression gas box 305 fixedly connected with an exhaust pipe 309 in the anti-collision isolation plate 301, the exhaust pipe 309 is communicated with the compression control gas cavity. The air in the compression control gas cavity is delivered and discharged through the exhaust pipe 309.

[0049] As Figures 5 to 6 shown, a plurality of evenly distributed guide air pipes 310 are connected between the exhaust pipe 309 and the limiting air bag cushion 302. The guide air pipe 310 functions to communicate the exhaust pipe 309 and the limiting air bag cushion 302, so as to facilitate the air in the exhaust pipe 309 to be transported to the limiting air bag cushion 302 along the guide air pipe 310, thereby facilitating the inflation control of the limiting air bag cushion 302.

[0050] As Figure 7 shown, an engineering counterweight block is assembled in the engineering machinery.

[0051] In specific use, the plurality of counterweight blocks 101 are assembled in the balance arm 1 by supporting and limiting the support pin shaft 102 through the plurality of supporting and positioning blocks 103, and the plurality of counterweight blocks 101 are buckled and protected by the protective cover formed by the lower protective cover 201 and the upper protective cover 202. At the same time, the air in the protective cover can be dehumidified by the moisture-proof pad 204, thereby ensuring the buckling and protection effect of the protective cover shell on the plurality of counterweight blocks 101.

[0052] In addition, the plurality of anti-collision isolation plates 301 are arranged between the plurality of counterweight blocks 101 by supporting and limiting the limiting shaft 303 through the plurality of supporting blocks 304, and the plurality of counterweight blocks 101 are separated and limited by the plurality of anti-collision isolation plates 301. And the gas in the compression control air cavity is compressed by driving the piston block 306 to rotate the control adjusting bolt rod 308, and the gas in the compression control air cavity is transported to the limiting air bag cushion 302 along the exhaust pipe 309 and the guide air pipe 310 under the action of the piston block 306, and the limiting air bag cushion 302 buffers and limits the plurality of counterweight blocks 101 through the expansion of the limiting air bag cushion 302, thereby ensuring the reliability of supporting and limiting the plurality of counterweight blocks 101.

[0053] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all aspects as exemplary and not restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and range of equivalents of the elements of the claims are intended to be embraced in the present application. Any reference signs in the claims should not be considered as limiting the claims involved.

[0054] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature described. The specification can include implicit combinations of explicitly mentioned features and / or explicit combinations of implicitely mentioned features. Each embodiment depends on the explicit combinations of features and / or the implicit combinations of features made specifically within that embodiment, and each such embodiment can be combined with every other such embodiment to create further embodiments.

Claims

1. A working machine, characterized in that The utility model provides a kind of engineering machinery, including: Balancing arm, one end of the balancing arm is equipped with multiple counterweights; Counterweight protection assembly is equipped outside multiple counterweights, the counterweight protection assembly includes lower protective cover, the lower protective cover is fixedly equipped below balancing arm, upper protective cover is fixedly equipped above the balancing arm, the lower protective cover and upper protective cover are both sleeved outside multiple counterweights, and the lower protective cover and upper protective cover cooperate to form protective cover shell, a pair of fixed frames are insertedly connected in the upper protective cover, and damp pad is fixedly connected in a pair of fixed frames; Multiple sets of anti-collision limiting components are arranged between multiple counterweights, the anti-collision limiting component includes anti-collision isolation plate, the anti-collision isolation plate is insertedly connected between multiple counterweights, and limiting air bag pad is fixedly connected on both sides of the anti-collision isolation plate.

2. A machine according to claim 1, c h a r a c t e r i z e d in that Multiple counterweights are fixedly equipped with support pin shafts on both sides, and the balancing arm is fixedly connected with multiple support positioning blocks, and multiple support pin shafts are arranged on multiple support positioning blocks.

3. A machine according to claim 2, c h a r a c t e r i z e d in that A top plate is fixedly connected above a pair of fixed frames, and an assembly avoidance hole is formed above the upper protective cover and matched with the fixed frame and the top plate.

4. A machine according to claim 3, characterised in that Limiting shafts are fixedly connected on both sides of the anti-collision isolation plate, multiple bearing blocks are fixedly connected on the balancing arm, the limiting shafts are arranged on the bearing blocks, and the bearing blocks and the support positioning blocks are staggered.

5. A machine according to claim 4, characterised in that Multiple assembly avoidance holes are formed in the bottom of the fixed frame and matched with the support pin shafts and the limiting shafts, and a pair of disassembly handles are fixedly connected at one end of the top plate outside the upper protective cover.

6. A machine according to claim 1, characterised in that A compression gas box is fixedly connected above the anti-collision isolation plate, a piston block is slidably connected in the compression gas box, and the compression gas box and the piston block cooperate to form a compression control gas cavity.

7. A machine according to claim 6, c h a r a c t e r i z e d in that A limiting spring is arranged inside the compression control gas cavity, an adjusting bolt rod is rotatably connected on the side of the piston block away from the limiting spring, the adjusting bolt rod penetrates the compression gas box, and the compression gas box and the adjusting bolt rod are screw-connected.

8. A machine according to claim 7, characterised in that An exhaust pipe is fixedly connected at one end of the compression gas box in the anti-collision isolation plate, and the exhaust pipe is communicated with the compression control gas cavity.

9. A machine according to claim 8, c h a r a c t e r i z e d in that Multiple evenly-distributed guide gas pipes are connected between the exhaust pipe and the limiting air bag pad.

10. An engineered counterweight characterized by, The utility model is equipped in engineering machinery such as any one of claims 1 to 9.

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