Counterweight for excavator

Abstract

The counter weight comprises a box body, stand columns are arranged on the surfaces of the left end and the right end of the box body, grooves are formed in the ends, close to each other, of the two stand columns, a boss is arranged at the bottom end of the interior of the box body, fixing plates are arranged at the four corners of the upper end of the box body, screw holes are formed in the surfaces of the fixing plates, and a base is arranged at the bottom end of the box body. Fixing holes (7) are formed in the four corners of the base respectively, a containing plate is arranged in the box body, sliding blocks are arranged at the left end and the right end of the containing plate respectively, the sliding blocks are connected with grooves in a sliding mode, a clamping assembly is arranged in the box body, a lifting assembly is arranged in the box body, a cover plate is arranged above the box body, and screws are movably connected to the four corners of the cover plate respectively. According to the counter weight for the excavator, the counter weight blocks of different sizes can be fixed, and the counter weight blocks can be taken out conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of excavator counterweights and discloses a counterweight for an excavator. Background Art

[0002] An excavator is an earth-moving machine that uses a bucket to dig materials above or below the surface of the machine and load them into a transport vehicle or unload them to a stockpile. A counterweight is a heavy object used to increase its own weight to maintain balance.

[0003] However, the patents in the prior art have the following disadvantages:

[0004] (1) The counterweight cannot be fixed. When the counterweight is smaller than the box, the counterweight in the box is likely to hit the box when the excavator is working, which greatly reduces the service life of the box.

[0005] (2) It is inconvenient to remove the counterweight. Utility Model Content

[0006] The utility model aims to provide a counterweight for an excavator, which solves the problem that the prior art cannot fix counterweight blocks of different sizes and is inconvenient to take out the counterweight blocks by arranging a clamping assembly and a lifting assembly.

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A counterweight for an excavator, comprising:

[0009] A box body, wherein columns are provided on the surfaces of the left and right ends of the box body, and grooves are provided on the ends of the two columns close to each other, a boss is provided at the bottom end of the box body, a fixing plate is provided at the four corners of the upper end of the box body, and screw holes are provided on the surface of the fixing plate, and a base is provided at the bottom end of the box body, and fixing holes are provided at the four corners of the base;

[0010] A placement plate, the placement plate is located inside the box, and sliders are provided at both left and right ends of the placement plate, and the sliders are slidably connected to the grooves;

[0011] A clamping assembly, wherein the clamping assembly is located inside the box;

[0012] A lifting assembly, wherein the lifting assembly is located inside the box;

[0013] The cover plate has screws movably connected at four corners thereof, and the screws are threadedly connected to the screw holes.

[0014] Furthermore, a sliding shaft is slidably connected inside the cover plate, a pressing plate is provided at the bottom end of the sliding shaft, and a limiting ring is provided at the upper end of the sliding shaft.

[0015] Furthermore, a spring is provided between the cover plate and the pressure plate, and the spring is sleeved on the sliding shaft.

[0016] Furthermore, the clamping assembly comprises:

[0017] A double-ended screw, the front and rear ends of which are rotatably connected to the box body, and a knob is provided at the front end of the double-ended screw;

[0018] A slide bar, the front and rear ends of which are fixedly connected to the box body;

[0019] The splints include two splints.

[0020] Furthermore, the left and right ends of the bottom of the clamping plate are respectively sleeved with a double-headed screw rod and a sliding rod.

[0021] Furthermore, the lifting assembly comprises:

[0022] A stud, wherein both upper and lower ends of the stud are rotatably connected to a column, a micro motor is provided at the upper end of the stud, and the bottom end of the micro motor is fixedly connected to the column;

[0023] A guide rod is fixedly connected to the column, and the two sliding blocks are respectively sleeved on the stud and the guide rod.

[0024] The utility model provides a counterweight for an excavator, which has the following beneficial effects:

[0025] (1) The utility model solves the problem that the existing counterweight for excavators cannot fix counterweights of different sizes by providing a clamping assembly. By rotating the knob to rotate the double-headed screw, the two clamping plates can be brought closer to each other to clamp the counterweight and prevent the counterweight from shaking.

[0026] (2) The utility model solves the problem that it is inconvenient to remove the counterweight block used in the existing excavator by providing a lifting component. The micro motor can be started to drive the stud to rotate, and then the placement plate is driven to move upward through the slider, so that the counterweight block is lifted to the upper end of the box body, which is convenient for removing the counterweight block. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0028] Figure 1 This is a three-dimensional structural schematic diagram of a counterweight for an excavator according to the utility model;

[0029] Figure 2This is a top view of a counterweight for an excavator according to the utility model;

[0030] Figure 3 This is a right side view of a counterweight for an excavator according to the utility model;

[0031] Figure 4 The utility model is a counterweight for an excavator Figure 2 Enlarged view of point A in the middle;

[0032] Figure 5 The utility model is a counterweight for an excavator Figure 3 Enlarged view of point B in the middle;

[0033] Among them: 1. Box body; 101. Post; 102. Groove; 103. Boss; 104. Fixing plate; 105. Screw hole; 106. Base; 107. Fixing hole; 2. Placement plate; 201. Slider; 3. Clamping assembly; 301. Double-headed screw; 302. Sliding rod; 303. Knob; 304. Clamping plate; 4. Lifting assembly; 401. Stud; 402. Guide rod; 403. Micro motor; 5. Cover plate; 501. Screw; 502. Sliding shaft; 503. Pressure plate; 504. Limiting ring; 505. Spring. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] See also Figure 1-5 A counterweight for an excavator includes a box 1 for storing a counterweight. The box 1 has columns 101 on the left and right surfaces. The two columns 101 have grooves 102 at one end close to each other. The box 1 has a boss 103 at the bottom. The four corners of the upper end of the box 1 have fixing plates 104. The fixing plates 104 have screw holes 105 on the surface. The box 1 has a base 106 at the bottom. The four corners of the base 106 have fixing holes 107 to facilitate fixing the box 1 on the excavator. The box 1 has a placement plate 2 inside to support The counterweight block and the placement plate 2 are provided with sliders 201 at both ends, the sliders 201 are slidably connected to the grooves 102, and the placement plate 2 can move in the vertical direction. There is a clamping assembly 3 inside the box body 1, which can clamp and fix the counterweight block. There is a lifting assembly 4 inside the box body 1, which can lift the counterweight block. There is a cover plate 5 on the top of the box body 1, and screws 501 are movably connected at the four corners of the cover plate 5. The screws 501 are threadedly connected to the screw holes 105. The cover plate 5 can be fixed to the upper end of the box body 1 by the screws 501, and it is convenient to disassemble.

[0036] Specifically, a sliding shaft 502 is slidably connected inside the cover plate 5 , a pressing plate 503 is provided at the bottom of the sliding shaft 502 , a limiting ring 504 is provided at the upper end of the sliding shaft 502 , a spring 505 is provided between the cover plate 5 and the pressing plate 503 , and the spring 505 is sleeved on the sliding shaft 502 .

[0037] Through the above technical solution, after the cover plate 5 is covered, the spring 505 will use its elastic force to push the pressure plate 503 to make it contact with the counterweight block, thereby enhancing the stability of the counterweight block.

[0038] Specifically, the clamping assembly 3 includes a double-headed screw 301, the threads of which are in opposite directions at both ends, the front and rear ends of the double-headed screw 301 are both rotatably connected to the box body 1, a knob 303 is provided at the front end of the double-headed screw 301 to facilitate the rotation of the double-headed screw 301, a sliding rod 302 is provided on the right side of the double-headed screw 301, the front and rear ends of the sliding rod 302 are both fixedly connected to the box body 1, the front and rear ends of the double-headed screw 301 are both sleeved with splints 304, and the bottom end of the splint 304 is sleeved with the sliding rod 302.

[0039] Through the above technical solution, by rotating the knob 303, the double-headed screw 301 is rotated, so that the two clamping plates 304 are moved closer to each other, clamping the counterweight block to prevent the counterweight block from shaking.

[0040] Specifically, the lifting component 4 includes a stud 401, and the upper and lower ends of the stud 401 are rotatably connected to the column 101. A micro motor 403 is provided at the upper end of the stud 401, and the lower end of the micro motor 403 is fixedly connected to the column 101. The micro motor 403 can control the rotation of the stud 401. A guide rod 402 is provided on the right side of the stud 401 to improve the stability of the movement of the placement plate 2. The guide rod 402 is fixedly connected to the column 101. Two sliders 201 are respectively connected to the stud 401 and the guide rod 402. The slider 201 will move with the rotation of the stud 401.

[0041] Through the above technical solution, the micro motor 403 is started, and the micro motor 403 can drive the stud 401 to rotate, and then drive the placement plate 2 to move upward through the slider 201, and lift the counterweight block to the upper end of the box body 1, so as to facilitate the removal of the counterweight block.

[0042] When in use, place the counterweight on the placement plate 2, rotate the knob 303 to rotate the double-headed screw 301, and move the two clamping plates 304 closer to each other to clamp the counterweight to prevent it from shaking, and then cover the cover 5. At this time, the spring 505 will use its elastic force to push the pressure plate 503 to make it contact with the counterweight, thereby enhancing the stability of the counterweight, and the installation is completed. When the counterweight needs to be removed, first open the cover 5 and start the micro motor 403. The micro motor 403 can drive the stud 401 to rotate, and then drive the placement plate 2 to move upward through the slider 201, lift the counterweight to the upper end of the box body 1, and then the counterweight can be removed.

[0043] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0044] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A counterweight for an excavator, characterized in that: include: A box body (1), wherein upright posts (101) are provided on the surfaces of the left and right ends of the box body (1), and a groove (102) is provided at one end of the two upright posts (101) close to each other, a boss (103) is provided at the bottom end of the box body (1), and fixing plates (104) are provided at the four corners of the upper end of the box body (1), and screw holes (105) are provided on the surface of the fixing plates (104), and a base (106) is provided at the bottom end of the box body (1), and fixing holes (107) are provided at the four corners of the base (106); A placement plate (2), the placement plate (2) being located inside the box body (1), and sliders (201) being provided at both left and right ends of the placement plate (2), and the sliders (201) being slidably connected to the grooves (102); A clamping assembly (3), wherein the clamping assembly (3) is located inside the box body (1); A lifting assembly (4), wherein the lifting assembly (4) is located inside the box body (1); A cover plate (5), wherein screws (501) are movably connected at four corners of the cover plate (5), and the screws (501) are threadedly connected to the screw holes (105).

2. The counterweight for an excavator according to claim 1, characterized in that: A sliding shaft (502) is slidably connected inside the cover plate (5), a pressing plate (503) is provided at the bottom end of the sliding shaft (502), and a limiting ring (504) is provided at the upper end of the sliding shaft (502).

3. The counterweight for an excavator according to claim 2, characterized in that: A spring (505) is provided between the cover plate (5) and the pressure plate (503), and the spring (505) is sleeved on the sliding shaft (502).

4. The counterweight for an excavator according to claim 1, characterized in that: The clamping assembly (3) comprises: A double-headed screw rod (301), the front and rear ends of which are rotatably connected to the box body (1), and a knob (303) is provided at the front end of the double-headed screw rod (301); A sliding rod (302), wherein both front and rear ends of the sliding rod (302) are fixedly connected to the box body (1); The clamping plates (304) are two in number.

5. The counterweight for an excavator according to claim 4, characterized in that: The left and right ends of the bottom of the clamping plate (304) are respectively sleeved with a double-headed screw rod (301) and a sliding rod (302).

6. The counterweight for an excavator according to claim 1, characterized in that: The lifting assembly (4) comprises: A stud (401), wherein both upper and lower ends of the stud (401) are rotatably connected to the column (101), a micro motor (403) is provided at the upper end of the stud (401), and the bottom end of the micro motor (403) is fixedly connected to the column (101); A guide rod (402) is fixedly connected to the column (101), and the two sliding blocks (201) are respectively sleeved on the stud (401) and the guide rod (402).

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