Positioning device for counter weight of excavating and forcible entry machine

Abstract

The utility model relates to the field of engineering machinery, in particular to a positioning device for a counter weight of an excavating and forcible entry machine, which comprises a base, a counter weight block is arranged above the base, a connecting rod is fixedly connected to the outer side wall of the counter weight block, and a counter weight fixing seat is fixedly connected to one side, far away from the counter weight block, of the connecting rod. And a counterweight fixing bolt is in threaded connection with the upper part of the counterweight fixing seat and is in threaded connection with the top of the base. Through the cooperation of the balancing weight and the blocking seat, the balancing weight can be blocked by the blocking seat when toppling towards the periphery in the complex working process, so that the balancing weight is replaced by the balancing weight fixing bolt to share transverse shear stress, accidents caused by deformation or breakage of the balancing weight fixing bolt in the working process are avoided, the stability of the structure is improved, and the service life of the structure is prolonged. And through the cooperation of the concave base, the weight increasing fixing block and the lower fixing box and the cooperation of the concave base and the lower fixing box, the connection between the balance weight fixing bolt and the connecting bolt is more stable.

Description

Technical Field

[0001] The utility model relates to the field of engineering machinery, in particular to a positioning device for a counterweight of an excavating and demolition machine. Background Art

[0002] The counterweight is one of the important parts of the excavator and demolition machine, and plays an important role in the stability of the machine during operation. The counterweight is usually connected by bolts to fix the counterweight block to the platform of the excavator and demolition machine.

[0003] Excavators and demolition machines often need to work under harsh road conditions. Therefore, when they are moving, the counterweight blocks often move sideways due to going up and down slopes, sudden stops and tail lifts, causing the counterweight bolts to be subjected to lateral shear stress, which in turn causes the bolts to deform or break.

[0004] Therefore, it is necessary to invent a positioning device for the counterweight of an excavation and demolition machine to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a positioning device for the counterweight of an excavating and demolition machine, so as to solve the problem in the prior art that the excavating and demolition machine often needs to work under harsh road conditions. Therefore, when it is moving, the counterweight block often moves horizontally to the surroundings due to ups and downslopes, emergency stops and tail lifts, thereby causing the counterweight bolts to be subjected to lateral shear stress, which in turn causes the bolts to deform or break.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a positioning device for the counterweight of an excavating and demolition machine, comprising a base, a counterweight block is arranged above the base, the outer wall of the counterweight block is fixedly connected with a connecting rod, the side of the connecting rod away from the counterweight block is fixedly connected with a counterweight fixing seat, the top of the counterweight fixing seat is threadedly connected with a counterweight fixing bolt, and the counterweight fixing bolt is threadedly connected to the top of the base.

[0007] Preferably, two groups of extraction rods are fixedly connected to the top of the counterweight block, and three groups of blocking seats are sleeved on the outer side of the counterweight block.

[0008] Preferably, a connecting seat is fixedly connected to one side of the blocking seat, a connecting bolt is threadedly connected to the top of the connecting seat, and the connecting bolt is threadedly connected to the top of the base.

[0009] Preferably, a concave seat is fixedly connected to the bottom of the base, a lower fixing box is inserted into the interior of the concave seat, and the top of the lower fixing box is threadedly connected to the counterweight fixing bolt and the connecting bolt respectively.

[0010] Preferably, the cross-section of the lower fixing box is bowl-shaped, and a weight-increasing fixing block is fixedly connected to the bottom wall of the lower fixing box.

[0011] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0012] 1. Through the cooperation between the counterweight block and the blocking seat, the counterweight block will be blocked by the blocking seat when it falls to the surroundings during the complex working process, thereby sharing the lateral shear stress for the counterweight fixing bolts, avoiding the deformation or breakage of the counterweight fixing bolts during the working process to cause accidents, and improving the stability of the structure;

[0013] 2. Through the cooperation of the concave seat, the weight-added fixing block and the lower fixing box, the connection between the counterweight fixing bolt and the connecting bolt is made more stable, thereby further increasing the stability of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0015] Figure 1 It is a schematic diagram of the top view structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the three-dimensional structure of the blocking seat of the utility model.

[0018] Description of reference numerals:

[0019] 1. Base; 2. Counterweight block; 201. Connecting rod; 202. Counterweight fixing seat; 203. Counterweight fixing bolt; 3. Blocking seat; 301. Connecting seat; 302. Connecting bolt; 4. Extraction rod; 5. Concave seat; 6. Weight-increasing fixing block; 7. Lower fixing box. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0021] The utility model provides Figure 1-3The positioning device of the counterweight of an excavating and demolition machine shown in the figure comprises a base 1, which is installed at the rear of the excavating and demolition machine. A counterweight block 2 is arranged above the base 1, and the counterweight is added to the structure through the counterweight block 2. The outer wall of the counterweight block 2 is fixedly connected with a connecting rod 201, and the side of the connecting rod 201 away from the counterweight block 2 is fixedly connected with a counterweight fixing seat 202, and the top of the counterweight fixing seat 202 is threadedly connected with a counterweight fixing bolt 203, and the counterweight fixing bolt 203 is threadedly connected to the top of the base 1. The counterweight block 2 is fixed to the surface of the base 1 by using the counterweight fixing bolt 203, and the top of the counterweight block 2 is fixedly connected with two sets of extraction rods 4, so that the counterweight 2 is pulled out from the top of the base 1 through the extraction rod 4, and three groups of blocking seats 3 are sleeved on the outer side of the counterweight 2, and a connecting seat 301 is fixedly connected to one side of the blocking seat 3, and a connecting bolt 302 is threadedly connected to the top of the connecting seat 301, and the connecting bolt 302 is threadedly connected to the top of the base 1. Through the cooperation between the counterweight 2 and the blocking seat 3, the counterweight 2 will be blocked by the blocking seat 3 when it tilts to the surroundings during the complex working process, thereby sharing the lateral shear stress for the counterweight fixing bolt 203, avoiding the deformation or breakage of the counterweight fixing bolt 203 during the working process to cause an accident, thereby improving the stability of the structure.

[0022] Refer to the instruction manual Figure 1-3 The bottom of the base 1 is fixedly connected with a concave seat 5, and a lower fixing box 7 is inserted into the interior of the concave seat 5 so that the lower fixing box 7 is fixed inside the concave seat 5. The top of the lower fixing box 7 is threadedly connected with the counterweight fixing bolt 203 and the connecting bolt 302 respectively. The cross-section of the lower fixing box 7 is bowl-shaped, and the bottom wall of the lower fixing box 7 is fixedly connected with a weight-increasing fixing block 6. Through the cooperation of the concave seat 5, the weight-increasing fixing block 6 and the lower fixing box 7, and through the cooperation of the concave seat 5 and the lower fixing box 7, the connection between the counterweight fixing bolt 203 and the connecting bolt 302 is more stable, thereby further increasing the stability of the structure.

[0023] How this utility works:

[0024] Refer to the instruction manual Figure 1-3 When the counterweight 2 needs to be installed, first control the extraction rod 4 to move the counterweight 2 so that it fits with the inner wall of one set of blocking seats 3, and then fit the remaining two sets of blocking seats 3 to the outer walls of the counterweight 2, and use the connecting bolts 302 to connect the blocking seats 3 with the base 1 and the lower fixed box 7, and then use the counterweight fixing bolts 203 to connect the counterweight 2 with the base 1 and the lower fixed box 7. After that, during work, when the counterweight 2 moves with the excavator and demolition machine, the connection of the counterweight 2 is made more stable through the limiting function between the concave seat 5 and the lower fixed box 7, and the blocking function of the blocking seat 3 is used to prevent the counterweight 2 from shifting, thereby replacing the counterweight fixing bolts 203 to share the lateral shear stress, avoiding the deformation or breakage of the counterweight fixing bolts 203 during work, thereby causing accidents, and improving the stability of the structure.

[0025] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A positioning device for a counterweight of an excavation and demolition machine, comprising a base (1), characterized in that: The invention comprises a base (1), a counterweight (2) is arranged above the base (1), a connecting rod (201) is fixedly connected to the outer wall of the counterweight (2), a counterweight fixing seat (202) is fixedly connected to the side of the connecting rod (201) away from the counterweight (2), a counterweight fixing bolt (203) is threadedly connected to the top of the counterweight fixing seat (202), the counterweight fixing bolt (203) is threadedly connected to the top of the base (1), two groups of extraction rods (4) are fixedly connected to the top of the counterweight (2), three groups of blocking seats (3) are sleeved on the outer side of the counterweight (2), a connecting seat (301) is fixedly connected to one side of the blocking seat (3), a connecting bolt (302) is threadedly connected to the top of the connecting seat (301), and the connecting bolt (302) is threadedly connected to the top of the base (1).

2. A positioning device for a counterweight of an excavation and demolition machine according to claim 1, characterized in that: The bottom of the base (1) is fixedly connected with a concave seat (5), the interior of the concave seat (5) is plugged with a lower fixing box (7), and the top of the lower fixing box (7) is respectively threadedly connected with a counterweight fixing bolt (203) and a connecting bolt (302).

3. A positioning device for a counterweight of an excavation and demolition machine according to claim 2, characterized in that: The cross section of the lower fixing box (7) is bowl-shaped, and a weight-increasing fixing block (6) is fixedly connected to the bottom wall of the lower fixing box (7).

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