Pure iron weight set

Abstract

The utility model relates to the technical field of hoisting equipment debugging, and discloses a pure iron weight set. The pure iron weight set comprises a weight block set, grooves are formed in the two sides of the weight block set in a hollowed-out mode, lifting lugs are arranged in the grooves, and the weight block set is formed by combining and overlapping two first weight blocks of ton weight, a second weight block of ton weight, a third weight block of ton weight and a fourth weight block of ton weight. The device has the advantages of being small in size, large in weight, small in occupied space, good in structural strength, convenient to stack and combine the weights, capable of matching and selecting various weights and the like, and solves the problems that a cast weight set is poor in quality due to the fact that the cast weight set is made of gray cast iron, and the weight of a crane cannot be combined when the balance weights of the crane are combined. The problems that in the prior art, a counter bore and a boss need to be aligned with counter weights stacked on the counter bore and the boss at the same time, stacking and combination of the counter weights can be completed, complexity is high, and the combination and matching weight of the crane counter weights is single are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of hoisting equipment debugging, in particular to a pure iron weight group. Background Art

[0002] Pure iron weight sets are essential items for hoisting equipment commissioning and load testing. They are used to verify the safety, stability and reliability of hoisting equipment. Test weights can avoid safety risks when hoisting valuable products.

[0003] There are cast weight sets on the market, but cast weight sets require molds, the molds are expensive and the production cost is high. The cast weight sets have high material requirements. Most of the ones on the market are cast with gray cast iron. Gray cast iron has disadvantages. It is not strong enough when casting thin parts and is prone to breakage during use, which reduces the service life of the weight set.

[0004] Crane counterweight block, announcement number CN201605115U, proposes a crane counterweight block, with positioning structures correspondingly provided at the four corners of the upper and lower surfaces of the counterweight block, and lifting ears provided on the side; its characteristic is that the center of the upper and lower surfaces of the counterweight block are respectively provided with bosses and countersunk holes for nesting and positioning the counterweight blocks when they are stacked. The utility model designs bosses and countersunk holes on the upper and lower surfaces of the middle part of the counterweight block, so that when two counterweight blocks are stacked together, the horizontal movement of the counterweight block is limited by the nesting limit of the bosses and countersunk holes. Compared with the comparative documents, the two belong to different technical fields, but are the closest in structure.

[0005] In summary, since the cast weight set is made of gray iron, its quality is poor. When assembling the crane counterweight blocks, the countersinks and bosses need to be aligned with the counterweight blocks stacked above at the same time to complete the stacking combination of the counterweight blocks, which is rather cumbersome. In addition, the weight combination of the crane counterweight blocks is relatively simple. Therefore, a pure iron weight set is proposed to solve the above problems. Utility Model Content

[0006] 1. Technical issues to be resolved

[0007] In view of the shortcomings of the prior art, the utility model provides a pure iron weight group, which has the advantages of small size and large weight, small space occupation, good structural strength, easy stacking and combination of weight blocks, and a variety of weight matching options. It solves the problem that the cast weight group is made of gray iron, which leads to its own poor quality. When assembling the crane counterweight blocks, it is necessary to align the countersink and the boss at the same time with the counterweight blocks stacked above to complete the stacking and combination of the counterweight blocks, which is rather cumbersome, and the weight combination of the crane counterweight blocks is relatively single.

[0008] (II) Technical solution

[0009] The utility model solves the above-mentioned technical problem with the following technical solution: a pure iron weight group, comprising a weight block group, both sides of the weight block group are hollowed out with grooves, the grooves are provided with hanging ears, the weight block group is composed of two tons of first weight blocks, a ton of second weight block, a ton of third weight block and a ton of fourth weight block, the top of the first weight block is provided with through holes distributed in four corners, the tops of the second weight block, the third weight block and the fourth weight block are respectively hollowed out with a plurality of connected countersunk holes, and the upper surface of the weight block group is coated with a quartz sand anti-slip layer.

[0010] The beneficial effects of the utility model are:

[0011] The pure iron weight set and weight block set can be stacked in various combinations through countersunk holes, so there are various weight combinations to choose from. When the weight block set is in use, the contact surface for people's feet is covered with a quartz sand anti-slip layer, which fully ensures the safety of people's use.

[0012] On the basis of the above technical solution, the present invention can also be improved as follows.

[0013] Furthermore, the two first weight blocks are connected by placing the same bolt in the corresponding through hole.

[0014] The beneficial effect of adopting the above further solution is that the first weight blocks are connected in a limited position by bolts.

[0015] Furthermore, the countersunk holes of the second weight block, the third weight block and the fourth weight block are hollowed out with , , and , respectively.

[0016] The beneficial effect of adopting the above further solution is that the weight block set can be stacked in a variety of ways, thereby providing a variety of weight combinations to choose from.

[0017] Further, the upper portion of the inner side surface of the countersunk hole is an inclined surface, and the lower portion of the inner side surface of the countersunk hole is a vertical surface;

[0018] Furthermore, the countersunk holes on the top of the weight blocks of the next layer of the weight block set are adapted to the bottom of the weight blocks above them.

[0019] The beneficial effect of adopting the above further scheme is that when the weight block group is stacked, for example, the second weight block and the third weight block are stacked and combined, the second weight block falls into the countersunk hole, and when the second weight block contacts the inclined surface, it is convenient to align the second weight block with the countersunk hole, and when the second weight block contacts the vertical surface, the vertical surface limits the second weight block in the horizontal direction.

[0020] Furthermore, the material of the weight block group is pure iron material QB, and the density is . tons / cubic meter.

[0021] The beneficial effect of adopting the above further scheme is that, compared with gray cast iron, the weight block set made of pure iron is small in size, heavy in weight, occupies little space, and has good structural strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the utility model;

[0023] Figure 2 It is a schematic diagram of the structure of the utility model;

[0024] Figure 3 It is a schematic diagram of the structure of the utility model;

[0025] Figure 4 It is a schematic diagram of the structure of the utility model.

[0026] In the figure: 1, weight block group; 101, first weight block; 102, second weight block; 103, third weight block; 104, fourth weight block; 2, groove; 3, lifting ear; 4, through hole; 5, countersunk hole; 501, inclined surface; 502, vertical surface; 6, anti-skid layer; 7, bolt. DETAILED DESCRIPTION

[0027] 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.

[0028] In the embodiment, Figure 1-4 A pure iron weight group is provided. The utility model comprises a weight block group 1. Both sides of the weight block group 1 are hollowed out with grooves 2. The grooves 2 are provided with hanging ears 3. The weight block group 1 is composed of two 1-ton first weight blocks 101, a 3-ton second weight block 102, a 5-ton third weight block 103 and a 10-ton fourth weight block 104. The top of the first weight block 101 is provided with through holes 4 distributed in four corners. The tops of the second weight block 102, the third weight block 103 and the fourth weight block 104 are respectively hollowed out with a plurality of connected countersunk holes 5. The upper surface of the weight block group 1 is coated with a quartz sand anti-slip layer 6.

[0029] The two first weight blocks 101 are connected by placing the same bolt 7 in the corresponding through hole 4;

[0030] The first weight blocks 101 are connected in a limited position by bolts 7;

[0031] The second weight block 102, the third weight block 103 and the fourth weight block 104 have 1, 2 and 3 hollowed-out countersunk holes 5 respectively;

[0032] The weight block set 1 can be stacked in various ways, thereby providing various weight matching options;

[0033] The upper part of the inner side surface of the countersunk hole 5 is an inclined surface 501, and the lower part of the inner side surface of the countersunk hole 5 is a vertical surface 502;

[0034] The countersunk holes 5 on the top of the weight blocks of the next layer of the weight block set 1 are adapted to the bottom of the weight blocks above them;

[0035] When the weight block set 1 is stacked, for example, the second weight block 102 and the third weight block 103 are stacked and combined, the second weight block 102 falls into the countersunk hole 5, and when the second weight block 102 contacts the inclined surface 501, it is convenient for the second weight block 102 to be aligned with the countersunk hole 5, and when the second weight block 102 contacts the vertical surface 502, at this time, the vertical surface 502 limits the second weight block 102 in the horizontal plane direction;

[0036] The material of weight block set 1 is pure iron material Q235B, with a density of 7.85 tons / cubic meter;

[0037] Compared with gray cast iron, the weight block set 1 made of pure iron is small in size, heavy in weight, occupies less space, and has good structural strength.

[0038] Working principle:

[0039] The first step to implement the innovation point:

[0040] Step 1: The weight block group 1 is stacked through the countersunk hole 5, and the countersunk hole 5 is convenient for limiting and fixing the weight block group 1. For example, the second weight block 102 and the third weight block 103 are stacked and combined, and the second weight block 102 falls into the countersunk hole 5. When the second weight block 102 contacts the inclined surface 501, it is convenient for the second weight block 102 to be aligned with the countersunk hole 5. When the second weight block 102 contacts the vertical surface 502, at this time, the vertical surface 502 limits the second weight block 102 in the horizontal direction.

[0041] Step 2: The weight block set 1 can be stacked in various combinations through the countersunk holes 5, so that there are various weight combinations to choose from. When the weight block set 1 is in use, the contact surface of the foot of a person is provided with a quartz sand anti-slip layer 6, which fully ensures the safety of the person in use;

[0042] Step 3: Compared with gray cast iron, the weight block set 1 made of pure iron is small in size, heavy in weight, occupies less space, and has good structural strength.

[0043] The second innovation point implementation steps:

[0044] Step 1: The weight block set 1 can be stacked in various combinations through the countersunk holes 5, so that there are various weight combinations to choose from. Among them, the first weight blocks 101 are connected in a limited position by bolts 7;

[0045] Step 2: For example, two first weight blocks 101 and second weight blocks 102, or one of the third weight block 103 and fourth weight block 104 are stacked together;

[0046] Step 3: For example, a first weight block 101 and a second weight block 102, a third weight block 103 and a fourth weight block 104 are stacked and combined. There are many stacking and matching schemes, which are briefly described here.

[0047] 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. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pure iron weight set, comprising a weight block set (1), both sides of the weight block set (1) are hollowed out with grooves (2), and each groove (2) is provided with a hanging ear (3), characterized in that: The weight block group (1) is composed of two first weight blocks (101) weighing 1 ton, a second weight block (102) weighing 3 tons, a third weight block (103) weighing 5 tons, and a fourth weight block (104) weighing 10 tons. The top of each of the first weight blocks (101) is provided with through holes (4) distributed in four corners, and the tops of each of the second weight block (102), the third weight block (103), and the fourth weight block (104) are respectively hollowed out with a plurality of connected countersunk holes (5). The upper surface of the weight block group (1) is coated with a quartz sand anti-slip layer (6).

2. A pure iron weight set according to claim 1, characterized in that: The two first weight blocks (101) are connected by placing the same bolt (7) in the corresponding through hole (4).

3. A pure iron weight set according to claim 1, characterized in that: The countersunk holes (5) of the second weight block (102), the third weight block (103) and the fourth weight block (104) are respectively hollowed out with one, two and three holes.

4. A pure iron weight set according to claim 3, characterized in that: The upper portion of the inner side surface of the countersunk hole (5) is an inclined surface (501), and the lower portion of the inner side surface of the countersunk hole (5) is a vertical surface (502).

5. A pure iron weight set according to claim 3, characterized in that: The countersunk holes (5) on the top of the weight blocks of the next layer of the weight block set (1) are adapted to the bottom of the weight blocks above them.

6. A pure iron weight set according to claim 1, characterized in that: The weight block group (1) is made of pure iron material Q235B, with a density of 7.85 tons / cubic meter.

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