CN111321768B

CN111321768B - Waterproof construction and excavator

Info

Publication number: CN111321768B
Application number: CN202010192713.8A
Authority: CN
Inventors: 游忠军; 武鹏; 朱国强
Original assignee: Sany Heavy Machinery Ltd
Current assignee: Sany Heavy Machinery Ltd
Priority date: 2020-03-18
Filing date: 2020-03-18
Publication date: 2021-11-05
Anticipated expiration: 2040-03-18
Also published as: CN111321768A

Abstract

The embodiment of the invention provides a waterproof structure and an excavator, and relates to the technical field of engineering mechanical equipment. The embodiment of the invention provides a waterproof structure which comprises a frame body, a counterweight structure, an adjusting gasket and a blocking piece. The frame body is provided with a connecting hole. The adjusting gasket is provided with a through groove, and the periphery of the adjusting gasket is provided with a notch communicated with the through groove. The adjusting shim is arranged between the counterweight structure and the frame body, and part of the counterweight structure penetrates through the through groove to be located in the connecting hole. The blocking piece is fixedly connected to the frame body, the blocking piece corresponds to the notch to block the notch, so that water is prevented from flowing into the connecting hole from the notch, the influence of the water on the counterweight structure is avoided, and the service life of the counterweight structure is prolonged.

Description

Waterproof construction and excavator

Technical Field

The invention relates to the technical field of engineering mechanical equipment, in particular to a waterproof structure and an excavator.

Background

The engineering machine is a mechanical device necessary for the engineering construction process, and the working environment of the machine is severe in the engineering construction process.

For example, the excavator, the balance weight is evenly arranged at the tail of the upper platform of most excavators at present to balance the whole excavator. The balancing weight passes through bolted connection on the upper platform of excavator, and in the use of excavator, during rainwater etc. flowed into the bolt hole, very difficult evaporation can freeze the inflation in cold area water, produces extra axial force to the counter weight bolted connection by-product, weakens bolted connection intensity, and water gets into behind the bolt hole in addition, and easy corrosion base member, destruction are connected vice, and then influence life.

Disclosure of Invention

The object of the present invention includes, for example, providing a waterproof structure capable of preventing the problem that water enters holes to cause damage to a counterweight structure, affecting the service life of the counterweight structure.

The invention also aims to provide an excavator, which can prevent the problems that water enters the hole to damage the counterweight structure and influence the service life of the counterweight structure.

Embodiments of the invention may be implemented as follows:

the embodiment of the invention provides a waterproof structure, which comprises a frame body, a counterweight structure, an adjusting gasket and a blocking piece, wherein the frame body is provided with a first end and a second end;

the frame body is provided with a connecting hole; the adjusting gasket is provided with a through groove, and the periphery of the adjusting gasket is provided with a notch communicated with the through groove; the adjusting shim is arranged between the counterweight structure and the frame body, and part of the counterweight structure penetrates through the through groove to be located in the connecting hole; the blocking piece is fixedly connected to the frame body, and the blocking piece corresponds to the notch so as to block the notch.

Optionally, the counterweight structure includes screw thread seat and bolt, the bolt passes the connecting hole with the screw thread seat spiro union, the adjusting shim set up in the screw thread seat with between the support body.

Optionally, the threaded seat has a flange portion for supporting a counterweight; the thickness of the flange part is H1, the thickness of the adjusting shim is H2, the thickness of the barrier is H3, and H2< H3< H1+ H2.

Optionally, the counterweight structure further includes a counterweight block, the counterweight block is connected to the threaded seat, and the counterweight block and the frame body are arranged at intervals, so that a space for accommodating the blocking member is formed between the counterweight block and the frame body.

Optionally, the blocking member includes a first guiding portion and a second guiding portion connected to each other, the first guiding portion and the second guiding portion are both disposed obliquely with respect to a first direction, and a distance between the first guiding portion and the second guiding portion increases along the first direction;

wherein the first direction is a direction in which the blocking member points to the notch.

Optionally, the first guide portion has a first wall surface, and the first wall surface is located on one side of the first guide portion close to the notch; the second guide part is provided with a second wall surface, the second wall surface is positioned on one side, close to the notch, of the second guide part, and the maximum distance between the first wall surface and the second wall surface is A1;

the width of the shim near one end of the barrier is a1, a1< A1.

Optionally, the first guide portion has a third wall surface, and the third wall surface is located on a side of the first guide portion away from the notch; the second guide part is provided with a fourth wall surface, the fourth wall surface is positioned on one side, away from the notch, of the second guide part, and the maximum distance between the third wall surface and the fourth wall surface is A2;

the width of the frame body is a2, and a2 is not more than A2.

Optionally, the blocking member further includes an arc portion, and the first guiding portion and the second guiding portion are respectively connected to two ends of the arc portion.

The embodiment of the invention also provides the excavator. The excavator comprises any one of the waterproof structures.

The waterproof structure and the excavator provided by the embodiment of the invention have the beneficial effects that:

the embodiment of the invention provides a waterproof structure which comprises a frame body, a counterweight structure, an adjusting gasket and a blocking piece. The frame body is provided with a connecting hole. The adjusting gasket is provided with a through groove, and the periphery of the adjusting gasket is provided with a notch communicated with the through groove. The adjusting shim is arranged between the counterweight structure and the frame body, and part of the counterweight structure penetrates through the through groove to be located in the connecting hole. The blocking piece is fixedly connected to the frame body, the blocking piece corresponds to the notch to block the notch, so that water is prevented from flowing into the connecting hole from the notch, the influence of the water on the counterweight structure is avoided, and the service life of the counterweight structure is prolonged.

The embodiment of the invention also provides an excavator, which comprises the waterproof structure. Because the excavator comprises the waterproof structure, the excavator also has the beneficial effects that water can be prevented from entering the connecting hole, and the service life of the counterweight structure is long.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a waterproof structure provided in an embodiment of the present invention at a first viewing angle;

fig. 2 is a schematic structural diagram of a waterproof structure provided in an embodiment of the present invention at a second viewing angle;

FIG. 3 is an enlarged view of a portion of the structure at III in FIG. 1;

FIG. 4 is an enlarged view of a portion of the structure at IV in FIG. 1;

fig. 5 is a schematic structural diagram of a waterproof structure according to an embodiment of the present invention in a third view.

Icon: 100-a waterproof structure; 110-a frame body; 111-connection hole; 120-a counterweight structure; 121-bolt; 1211-rod part; 1212-bolt head; 122-a threaded seat; 123-flange portion; 124-a balancing weight; 125-sideline; 130-adjusting shim; 131-through grooves; 132-a notch; 140-a barrier; 141-a first guide; 142-a first wall; 143-a third wall; 144-a second guide; 145-second wall; 146-a fourth wall; 147-arc portion; 148-end point.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. indicate an orientation or a positional relationship based on that shown in the drawings or that the product of the present invention is used as it is, this is only for convenience of description and simplification of the description, and it does not indicate or imply that the device or the element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.

Fig. 1 is a schematic structural view of the waterproof structure 100 provided in this embodiment at a first viewing angle, and fig. 2 is a schematic structural view of the waterproof structure 100 provided in this embodiment at a second viewing angle. Referring to fig. 1 and fig. 2, the present embodiment provides a waterproof structure 100, and accordingly, an excavator (not shown) is provided.

The excavator includes a waterproof structure 100 and also includes a body (not shown). The waterproof structure 100 is mounted on the body.

The waterproof structure 100 includes a frame body 110, a weight structure 120, a spacer 130, and a blocking member 140. The frame body 110 is provided with a connecting hole 111, and in this embodiment, the frame body 110 is a portion of the tail of the upper platform of the body. The adjusting shim 130 is provided with a through slot 131, and the adjusting shim 130 is provided with a notch 132 at the periphery thereof, which is communicated with the through slot 131. The adjustment shim 130 is disposed between the weight structure 120 and the frame body 110, and a portion of the weight structure 120 passes through the through groove 131 to be located within the coupling hole 111. The blocking member 140 is fixedly connected to the frame body 110, and the blocking member 140 is disposed corresponding to the notch 132 to block the notch 132, so that water is prevented from flowing into the connecting hole 111 from the notch 132, thereby preventing the water from affecting the weight structure 120, and prolonging the service life of the weight structure 120.

The waterproof structure 100 provided in the present embodiment is further described below:

fig. 3 is a schematic enlarged view of a portion of the structure at iii in fig. 1, and fig. 4 is a schematic enlarged view of a portion of the structure at iv in fig. 1. Referring to fig. 1 to 4, in the present embodiment, the counterweight structure 120 includes a threaded seat 122 and a bolt 121, the bolt 121 passes through the connection hole 111 and is screwed with the threaded seat 122 to form a connection pair, and the adjustment washer 130 is disposed between the threaded seat 122 and the frame body 110. Specifically, the connection hole 111 is a through hole penetrating the frame body 110 in the up-down direction. The bolt 121 is inserted into the connecting hole 111 from the lower side of the connecting hole 111, and one end of the rod 1211 of the bolt 121, which is far away from the bolt head 1212, extends from the upper opening of the connecting hole 111, so as to be screwed and fixed with the threaded seat 122, that is, after being installed, the bolt head 1212 and the threaded seat 122 of the bolt 121 are respectively located at the upper side and the lower side of the frame body 110, so as to fix the connection pair with the frame body 110. The adjusting shim 130 is disposed on the upper side of the frame body 110, that is, when the rod 1211 extends out of the connecting hole 111, the rod 1211 firstly passes through the through groove 131 of the adjusting shim 130 and then is screwed with the screw seat 122 disposed on the upper side of the adjusting shim 130, so that the adjusting shim 130 is clamped between the screw seat 122 and the frame body 110, and thus the assembling gap of the weight structure 120 can be adjusted by the adjusting shim 130.

In order to facilitate manual assembly, the adjusting shim 130 is provided with a through groove 131, and an opening communicated with the through groove 131 is formed on the periphery of the adjusting shim 130, the rod 1211 of the bolt 121 extends out of the connecting hole 111 and penetrates through the through groove 131 to be connected with the threaded seat 122, specifically, the adjusting shim 130 is square, the through groove 131 is connected with the notch 132 to form a U-shaped groove, and the notch 132 penetrates through one side of the square to enable the through groove 131 to be communicated with the outside on the periphery of the adjusting shim 130. The blocking member 140 is disposed corresponding to the gap 132 to block the gap 132, and particularly, the blocking member 140 is disposed opposite to the gap 132 to prevent water from flowing to the gap 132.

Referring to fig. 3, in the present embodiment, the lower end of the threaded seat 122 has a flange portion 123, and the flange portion 123 is a protrusion structure formed by radially protruding outward the circumferential surface of the lower end of the threaded seat 122. When installed, the upper end face of the flange portion 123 is supported on the underside of the weight block 124. The thickness of the flange 123 is H1, the thickness of the shim 130 is H2, and the thickness of the dam 140 is H3. It should be noted that, in the description of the present embodiment, the "thickness" is a dimension of the component in the vertical direction, in other words, the "thickness" is a height of the component, for example, the "thickness of the flange portion 123" is a distance between a lower end surface of the screw seat 122 and an upper end surface of the flange portion 123, and the "thickness of the adjusting shim 130" is a distance between a lower end surface and an upper end surface of the adjusting shim 130, that is, a distance between an upper end surface of the frame body 110 and a lower end surface of the screw seat 122. H2< H3< H1+ H2, that is, the thickness of the blocking member 140 is greater than that of the adjustment shim 130, so that the gap 132 of the adjustment shim 130 can be well blocked by the blocking member 140, and water is prevented from flowing into the gap 132; meanwhile, the thickness of the blocking member 140 is smaller than the sum of the thickness of the adjustment pad 130 and the thickness of the flange portion 123, in other words, the thickness of the blocking member 140 is smaller than the distance between the lower end surface of the weight block 124 and the upper end surface of the frame body 110, so that the space below the weight block 124 has a sufficient height to accommodate the blocking member 140.

The counterweight structure 120 further includes a counterweight 124, the counterweight 124 is mounted on the threaded seat 122, and the lower end surface of the counterweight 124 abuts against the upper end surface of the flange portion 123, that is, the flange portion 123 is supported under the counterweight 124, so that the counterweight 124 and the frame body 110 are spaced apart from each other, a space for accommodating the blocking member 140 is formed between the counterweight 124 and the frame body 110, and the blocking member 140 is disposed in the space.

Specifically, the stop 140 has an end point 148, and the end point 148 is the point where the distance between the stop 140 and the notch 132 is the largest in the first direction. The end 148 is located on a side of a boundary line 125 of the weight block 124 near the notch 132, where the boundary line 125 is a straight line of the circumference of the weight block 124 taken in the cross section shown in fig. 3. In other words, the blocking member 140 is entirely located in the space between the weight 124 and the frame 110, so that the gap 132 can be blocked by the blocking member 140, and water effectively entering the space flows into the connection hole 111 through the gap 132. It should be noted that, in the description of the present embodiment, the "first direction" is a direction in which the blocking member 140 points to the notch 132, i.e., a direction from left to right as shown in fig. 1 to fig. 3.

Further, 1.5mm ≦ (H1+ H2-H3) ≦ 2.5mm, that is, the distance between the upper end surface of the stopper 140 and the upper end surface of the flange portion 123 is 1.5mm to 2.5mm, which ensures the convenience of installation of the weight structure 120, and also ensures the waterproof reliability of the stopper 140, preventing water from flowing from the upper side of the stopper 140 over the stopper 140 to the notch 132. In the present embodiment, H1+ H2-H3 is 2mm, that is, the height difference between the height of the stopper 140 and the height of the upper end surface of the flange 123 is 2mm, and optionally, the height difference may also be 1.5mm or 2.5 mm. It is understood that in other embodiments, the values of (H1+ H2-H3) may be specifically set as desired.

Referring to fig. 2 and 3, in the present embodiment, the blocking member 140 includes a first guide portion 141 and a second guide portion 144 connected to each other. The first and

second guide portions

141 and 144 are each disposed to be inclined with respect to the first direction, and a distance between the first and

second guide portions

141 and 144 is increased in the first direction, so that water flowing in the first direction is guided toward an edge of the frame body 110 by the first and second guide portions 141 and 144 (as indicated by arrows in fig. 2). Further, the blocking member 140 further includes an arc portion 147, the first guide portion 141 and the second guide portion 144 are respectively connected to two ends of the arc portion 147, water flowing along the first direction and facing the notch 132 first contacts the arc portion 147, and is divided by the arc portion 147 so that two paths of water flow along the first guide portion 141 and the second guide portion 144 respectively.

Specifically, block piece 140 and buckle the angular form piece that integrated into one piece formed through the panel beating, first connecting portion and second connecting portion are two support arms of this angular form respectively, and arc portion 147 is just for the circular-arc transition portion of bending type formation. It should be noted that the manufacturing manner of the blocking member 140 is not limited herein, and it is understood that in other embodiments, the blocking member 140 may be made in other manners according to requirements, such as welding.

The stop 140 includes opposing first and second sides, with the first side adjacent to the spacer shim 130 opposite the second side. Accordingly, the first guide portion 141 has a first wall 142, and the first wall 142 is located on a side of the first guide portion 141 close to the notch 132, that is, the first wall 142 is a wall on the first side of the first guide portion 141. The second guide portion 144 has a second wall surface 145, and the second wall surface 145 is located on a side of the second guide portion 144 close to the notch 132, that is, the second wall surface 145 is a wall surface on a first side of the second guide portion 144. Since the distance between the first guide portion 141 and the second guide portion 144 gradually increases along the first direction, similarly, the distance between the first wall surface 142 and the second wall surface 145 gradually increases along the first direction, and thus the maximum distance between the first wall surface 142 and the second wall surface 145 is the distance between the end of the first wall surface 142 close to the notch 132 and the end of the second wall surface 145 close to the notch 132, which is a 1. The width of the spacer 130 at the end near the blocking member 140 is a1, and it should be noted that, in the description of the present embodiment, the width is the dimension of the spacer 130 along the second direction, and the second direction is perpendicular to the first direction. a1< a1, thereby enabling the baffle 140 to direct water to both sides of the spacer shim 130, ensuring that water does not flow to the gap 132.

Fig. 5 is a schematic structural diagram of the waterproof structure 100 according to the embodiment in a third viewing angle. Referring to fig. 1, fig. 3 and fig. 5, in the present embodiment, the number of the bolts 121 is two, the number of the screw bases 122 is also two, and the two bolts 121 and the two screw bases 122 are connected in a one-to-one correspondence manner, so as to form two connection pairs. Correspondingly, the number of the connection holes 111 is also two, the two connection holes 111 are spaced along the first direction, the blocking member 140 and the two connection holes 111 are spaced along the first direction, and the number of the blocking member 140 is one, that is, in this embodiment, the waterproof function at the notch 132 of the two adjusting spacers 130 can be realized by fixing one blocking member 140 on the frame body 110.

Further, the first guide portion 141 has a third wall surface 143, and the third wall surface 143 is located on a side of the first guide portion 141 away from the notch 132, that is, the third wall surface 143 is a wall surface on a second side of the first guide portion 141. The second guide portion 144 has a fourth wall surface 146, and the fourth wall surface 146 is located on a side of the second guide portion 144 away from the notch 132, that is, the fourth wall surface 146 is a wall surface of the second guide portion 144 on the second side. Since the distance between the first guide part 141 and the second guide part 144 gradually increases in the first direction, similarly, the distance between the third wall 143 and the fourth wall 146 gradually increases in the first direction, that is, the maximum distance between the third wall 143 and the fourth wall 146 is the distance between the end of the third wall 143 near the notch 132 and the end of the fourth wall 146 near the notch 132, and the distance is a 2. The width of the rack 110 is a2, a2 is a2 or less, so that water flows out of the rack 110 while flowing along the first and

second guide portions

141 and 144. Obviously, in the case of a2 ≦ A2, even a1 ≧ A1 can effectively prevent water from flowing toward the notch 132 of the shim 130.

In the embodiment, the blocking member 140 is fixed to the frame body 110 by welding, so that the position of the blocking member 140 relative to the frame body 110 is fixed, thereby ensuring that the counterweight structure 120 is smoothly installed when the counterweight structure 120 is installed in a concealed manner. It is understood that in other embodiments, the blocking member 140 can be fixed to the frame body 110 in other manners according to requirements, such as clamping.

According to the waterproof structure 100 provided in this embodiment, the working principle of the waterproof structure 100 is as follows:

since the adjusting shim 130 is provided with the U-shaped groove, the sealing of the connecting hole 111 except the gap 132 of the adjusting shim 130 can be realized by the adjusting shim 130, that is, the external water can only flow into the connecting hole 111 through the gap 132 of the adjusting shim 130, thereby affecting the counterweight structure 120. The blocking member 140 is disposed corresponding to the gap 132 to block the gap 132, so that water is effectively prevented from flowing into the connecting hole 111 through the gap 132 after flowing into the space under the weight member 124. Meanwhile, the blocking member 140 is arranged in a bending form, so that shunting and flow guiding are realized, and the waterproof performance is further improved.

The waterproof structure 100 provided by the embodiment at least has the following advantages:

the embodiment of the invention provides a waterproof structure 100, and the waterproof structure 100 effectively prevents water from entering the connecting hole 111 through the matching of the adjusting gasket 130 and the blocking piece 140, thereby avoiding the influence of water on the counterweight structure 120 and being beneficial to prolonging the service life of the counterweight structure 120. The blocking member 140 is bent with an opening facing the notch 132, so that the flow diversion and the flow guidance are realized, and the waterproof performance is further improved.

The present embodiment also provides an excavator, which includes the waterproof structure 100, and therefore, the excavator also has the beneficial effects of being capable of preventing water from affecting the counterweight structure 120, having a long service life, and having good waterproof performance.

The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. A waterproof structure is characterized by comprising a frame body, a counterweight structure, an adjusting gasket and a blocking piece;

the frame body is provided with a connecting hole; the adjusting gasket is provided with a through groove, and the periphery of the adjusting gasket is provided with a notch communicated with the through groove; the adjusting shim is arranged between the counterweight structure and the frame body, and part of the counterweight structure penetrates through the through groove to be located in the connecting hole; the blocking piece is fixedly connected to the frame body and arranged corresponding to the notch so as to block the notch;

the blocking member comprises a first guide part and a second guide part which are connected with each other, the first guide part and the second guide part are obliquely arranged relative to a first direction, and the distance between the first guide part and the second guide part is increased along the first direction;

2. The waterproof structure according to claim 1, wherein the weight structure includes a threaded seat and a bolt, the bolt is screwed with the threaded seat through the connection hole, and the adjustment gasket is disposed between the threaded seat and the frame body.

3. The waterproof structure according to claim 2, wherein the threaded seat has a flange portion for supporting a weight block; the thickness of the flange part is H1, the thickness of the adjusting shim is H2, the thickness of the barrier is H3, and H2< H3< H1+ H2.

4. A water repellent structure according to claim 3, characterized in that 1.5mm ≦ (H1+ H2-H3) ≦ 2.5 mm.

5. The waterproof structure according to claim 2, wherein the weight structure further comprises a weight block connected to the threaded seat, and the weight block and the frame body are spaced apart from each other to form a space for accommodating the blocking member therebetween.

6. The waterproof structure according to any one of claims 1 to 5, wherein the first guide portion has a first wall surface located on a side of the first guide portion close to the notch; the second guide part is provided with a second wall surface, the second wall surface is positioned on one side, close to the notch, of the second guide part, and the maximum distance between the first wall surface and the second wall surface is A1;

the width of the shim near one end of the barrier is a1, a1< A1.

7. The waterproof structure according to any one of claims 1 to 5, wherein the first guide portion has a third wall surface located on a side of the first guide portion away from the notch; the second guide part is provided with a fourth wall surface, the fourth wall surface is positioned on one side, away from the notch, of the second guide part, and the maximum distance between the third wall surface and the fourth wall surface is A2;

the width of the frame body is a2, and a2 is not more than A2.

8. The waterproof structure according to any one of claims 1 to 5, wherein the blocking member further includes a circular arc portion, and the first guide portion and the second guide portion are connected to both ends of the circular arc portion, respectively.

9. An excavator, characterized in that the excavator comprises a waterproof structure according to any one of claims 1 to 8.