[0029] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the accompanying drawings in the embodiments of the present invention. Throughout the drawings, the same or similar reference numbers refer to the same or similar elements or elements having the same or similar functions. The described embodiments are some, but not all, of the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the present invention and should not be construed as limiting the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
[0030] like Figure 1a and Figure 1b As shown, Embodiment 1 provides a grab bucket system, including a grab bucket body 1, a bucket head assembly 2 and a counterweight block assembly 3; the bucket head assembly 2 is located below the grab bucket body 1, and the counterweight block assembly The components 3 are installed on the outside of the grab bucket body 1 to adjust the weight of the grab bucket body 1, thereby changing the digging capacity of the bucket head assembly 2 and not affecting the backflow channel of the mud.
[0031] In the grab bucket system of the present embodiment 1, the counterweight block assembly 3 is arranged on the outside of the grab bucket body 1, which can not only adjust the digging capacity of the bucket head assembly, but also does not affect the backflow channel of the mud, which effectively avoids the impact of mud on the grab bucket. The lifting/lowering resistance of the body improves the fuel utilization rate and meets the high requirements of fuel economy and environmental protection.
[0032] As an optional implementation of a counterweight assembly.
[0033] See Figure 1a , the counterweight block assembly 3 includes: counterweight block groups 31 distributed on the outside of the grab body 1 ; each counterweight block group 31 includes at least two counterweight blocks 311 arranged side by side. because Figure 1a Only the main view of the grapple system is shown, so the other two weight groups are blocked and cannot be displayed.
[0034] The counterweight block assembly 3 of this embodiment adjusts the weight of the grab bucket body through the counterweight blocks symmetrically distributed on the outer side of the grab bucket body 1, which will not affect the backflow channel of the mud, and the number of counterweight blocks 311 can also be adjusted according to the working conditions. (such as geological conditions, mud viscosity, etc.) adjustment, high flexibility, and symmetrical distribution of counterweights, can also ensure the verticality of the grab body, so as not to affect the normal use of the grab system due to the inclination of the grab body.
[0035] Further, see Figure 1a and figure 2 , the grab bucket system also includes two mud passages 4 arranged in the middle of the grab bucket body 1 , and four counterweight positions 5 symmetrically distributed on both sides of the mud passage 4 .
[0036] An optional embodiment as a counterweight.
[0037] See Figure 1b , the counterweight position 5 includes two beams 51 arranged up and down on the grab body 1 and a fixed plate 52 respectively located on the outer side of each beam 51 .
[0038] The corresponding counterweight block groups 31 are suitable for installation between the outer sides of the two beams 51 and the two fixing plates 52 . Each counterweight position 5 is set in a one-to-one correspondence with the counterweight block group 31, that is, two counterweight blocks 311 can be installed side by side on one counterweight position 5, which can ensure the installation stability of the counterweight block and can also flexibly select the counterweight block. quantity.
[0039] When installing the counterweight, try to keep the position of the counterweight as symmetrical as possible to ensure the stability and verticality of the grab body. Two; for another example, when four counterweight groups 31 are selected for the grab system, one counterweight can be installed on each counterweight position; for example, when six counterweight groups 31 are selected for the grab system, the inclined block can be selected. The number of counterweights installed in the diagonal counterweight positions is the same.
[0040] Optionally, the counterweight 311 is adapted to be fastened to the fixing plate 52 by bolts.
[0041] Optionally, the fixing plate 52 is connected to the grab body 1 by welding.
[0042] To sum up, in this grab bucket system, the counterweight block assembly is arranged on the outside of the grab bucket body, which can not only adjust the digging capacity of the bucket head assembly, but also does not affect the backflow channel of the mud, which effectively avoids the impact of mud on the grab bucket body. The lifting/lowering resistance improves the fuel utilization rate and meets the high requirements of fuel economy and environmental protection; by symmetrically distributing a number of counterweights on the outside of the grab body, the number of counterweights can also be adjusted according to the working conditions, and the adjustment flexibility is high. At the same time, the verticality of the grab body can also be ensured, so as to prevent the inclination of the grab body from affecting the normal use of the grab system; by setting the counterweight position for installing each counterweight block, the installation stability of the counterweight block can be ensured, thereby improving the Mechanical stability of the entire grapple system.
[0043] The present invention also provides an engineering vehicle, including the above-mentioned grab system.
[0044] Here, it should be further noted that, due to the fixed weight of the existing ordinary grab, its fuel consumption cannot be changed with the requirements of the working conditions, which reduces the utilization rate of fuel, and the counterweight is installed inside the grab body (such as Figure 4 The position referred to in the middle A), the backflow channel of the mud will be blocked. The solution in this application document is that the counterweight blocks in the counterweight block group are connected in a detachable manner, and the counterweight block assembly is installed on the outside of the grab body (such as Figure 4 the position referred to at B).
[0045] Finally it should be noted that: the above embodiment is only used to illustrate the technical scheme of the present invention and not to limit it; Although the present invention has been described in detail with reference to the preferred embodiment, those of ordinary skill in the art should understand: The specific embodiments of the invention are modified or some technical features are equivalently replaced; without departing from the spirit of the technical solutions of the present invention, all of them should be included in the scope of the technical solutions claimed in the present invention.
