Calipers and weight lifting device

Abstract

The utility model discloses a pair of calipers and a weight lifting device, and belongs to the technical field of weight lifting. The clamping groove is formed in the top of the base, and the clamping groove is in an arc shape; a flange is arranged on the circumferential wall of the clamping groove, the projection of the flange on the horizontal plane is perpendicular to the axial direction of the clamping groove, and the two ends of the flange in the length direction at most extend to be flush with the top of the base. The calipers are matched with the shapes of the weights, the calipers can stably clamp the weights, the weights are prevented from falling off, an existing cam lever structure is replaced by the weight lifting device, and more labor is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of weight lifting, in particular to a caliper and a weight lifting device. Background Art

[0002] The weight lifting mechanism in the calibration system of the DT-9 series coal feeders, commonly used at the previous power plant, was typically a cam-lever mechanism. The cam was directly connected to the feeder body via bearings. During daily operation, not only was the mechanism exposed to high levels of suspended dust, but the fragile bearings also had to withstand Y-axis compressive stress and circumferential rotational torque, making them susceptible to damage. Bearing damage significantly hindered calibration. Furthermore, the original lifting mechanism had limited Y-axis travel, and during calibration, the weights could vibrate and collide with the lifting mechanism, causing calibration errors.

[0003] In view of the current situation, the present invention aims to redesign the coal feeder calibration weight lifting device through structural design optimization and other means. It is necessary to completely overturn the original cam lever mechanism and redesign it to support the bolt and top screw locking mechanism, eliminate the bearings with complicated installation and maintenance work, simplify the mechanical structure, and reduce maintenance costs and maintenance workload. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract and title of the utility model to avoid obscuring the purpose of this section, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0005] In view of the above problems and / or the problems existing in the prior art, the present utility model is proposed.

[0006] Therefore, the first object of the present invention is to provide a caliper that can adapt to the shape of a weight and can stably clamp the weight.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions: a caliper, comprising a base; and a slot arranged on the top of the base, the slot being arc-shaped; a flange is provided on the circumferential wall of the slot, the projection of the flange on the horizontal plane is perpendicular to the axial direction of the slot, and the two ends of the flange in the length direction extend at most to be flush with the top of the base.

[0008] As a preferred solution of the caliper of the utility model, the clamping groove and the flange are arranged concentrically.

[0009] As a preferred solution of the caliper of the present invention, the flange includes a top, and the distances from the top to the two ports in the length direction of the slot are equal.

[0010] As a preferred solution of the caliper of the present invention, the flange further includes a contact portion, and the upper and lower ends of the contact portion are respectively connected to the top and the circumferential wall of the slot.

[0011] As a preferred solution of the caliper of the present invention, the distance from the contact portion to the central axis surface of the flange gradually increases from the contact portion toward the circumferential wall of the clamping groove.

[0012] As a preferred solution of the caliper of the present invention, the diameter of the slot is 25 mm, the distance from the top of the flange to the circumferential wall of the slot is 3.5 mm, the axial length of the slot is 20 mm, and the widest part of the flange is 8 mm.

[0013] The second purpose of the utility model is to provide a weight lifting device, which can replace the existing cam lever structure to lift the weight and save more labor.

[0014] In order to solve the above technical problems, the utility model provides the following technical solutions: a weight lifting device, including the above-mentioned caliper, and a mounting seat, which is fixed on the coal feeder; a base, which is detachably connected to the mounting seat; the base is slidably installed on the base; and a support column, the support column is threadedly installed on the base and conflicts with the bottom of the base.

[0015] As a preferred solution of the weight lifting device of the utility model, wherein: a threaded hole is provided at the bottom of the base, a first through hole is provided at the top of the base, the first through hole is coaxially arranged with the threaded hole, a limiting shaft is slidably installed in the first through hole, and the top of the limiting shaft is threadedly connected to the threaded hole.

[0016] As a preferred solution of the weight lifting device of the present invention, a second through hole is further provided on the top of the base, the second through hole passes through the upper and lower end surfaces of the base, and the support column is threadedly connected to the second through hole.

[0017] As a preferred solution of the weight lifting device of the present invention, a limiting hole is further provided on the base, the limiting hole is connected to the first through hole, a locking column is installed in the limiting hole through a thread, and the locking column conflicts with the limiting shaft.

[0018] The beneficial effects of the utility model are as follows: the caliper adapts to the shape of the weight, and the caliper can stably clamp the column weight to prevent the weight from falling off, and the weight lifting device replaces the existing cam lever structure, which is more labor-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work. Among them:

[0020] Figure 1 This is a working diagram of the weight lifting device of the utility model.

[0021] Figure 2 This is a structural diagram of the caliper in Example 1 of the present utility model.

[0022] Figure 3 This is a structural diagram of the caliper in Example 2 of the present utility model.

[0023] Figure 4 This is a structural diagram of the base of the utility model. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Next, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, cross-sectional views of device structures may be partially enlarged and not to scale when describing embodiments of the present invention. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included.

[0027] Furthermore, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0028] Example 1

[0029] Reference Figure 1, is the first embodiment of the present utility model, which provides a caliper.

[0030] Specifically, the caliper includes a base 100, a slot 101 and a flange 102; the slot 101 is arranged at the top of the base 100, and the shape of the slot 101 is arc-shaped; a flange 102 is provided on the circumferential wall of the slot 101, and the flange 102 is used to be clamped in the groove of the weight, and the projection of the flange 102 on the horizontal plane is perpendicular to the axial direction of the slot 101, and the two ends of the flange 102 in the length direction extend at most to be flush with the top of the base 100, while the two ends of the flange 102 in the length direction of this embodiment just extend to be flush with the top of the base 100.

[0031] When in use, the groove of the weight cooperates with the flange 120 to limit the axial movement of the weight, and the arc-shaped slot 101 cooperates with the shape of the weight, thereby limiting the shaking of the weight during the movement of the caliper and improving the stability of the weight during the movement.

[0032] Example 2

[0033] See Figure 3 , which is the second embodiment of the present utility model. This embodiment is basically the same as embodiment 1, except that the two ends of the flange 101 in the length direction of this embodiment do not extend to the state of being flush with the top of the base 100, but are lower than the top end surface of the base 100.

[0034] Example 3

[0035] See Figures 1 to 3 , which is the third embodiment of the present utility model.

[0036] Specifically, the slot 101 and the flange 102 are concentrically arranged, which makes the structure of the caliper more compact and improves the matching accuracy between the caliper and the weight.

[0037] Preferably, the flange 102 includes a top 102a, and the distances from the top 102a to the two ports in the length direction of the slot 101 are equal. This symmetrical design ensures the balance of the weight in the slot 101 and reduces tilting or sliding caused by asymmetry.

[0038] Preferably, the flange 102 further includes a contact portion 102b, the upper and lower ends of which are respectively connected to the top 102a and the circumferential wall of the slot 101. This design makes the contact between the flange 102 and the weight more stable, thereby improving the grip of the caliper on the weight.

[0039] Furthermore, the distance from the contact portion 102b to the central axis surface of the flange 102 gradually increases from the contact portion 102b toward the circumferential wall close to the slot 101. The contact portion 102b of this embodiment is triangular. This gradual design helps to disperse the weight of the weight, reduce local pressure on the caliper, and extend the service life of the caliper.

[0040] Furthermore, the diameter of the slot 101 is 25 mm, the distance from the top of the flange 102 to the circumferential wall of the slot 101 is 3.5 mm, the axial length of the slot 101 is 20 mm, and the widest part of the flange 102 is 8 mm, which ensures the precise fit between the caliper and the weight and improves the applicability and reliability of the caliper.

[0041] When in use, the groove of the weight cooperates with the flange 120 to limit the axial movement of the weight, and the arc-shaped slot 101 cooperates with the shape of the weight, thereby limiting the shaking of the weight during the movement of the caliper and improving the stability of the weight during the movement.

[0042] Example 4

[0043] See Figures 1 to 4 , which is the fourth embodiment of the present invention, and is based on embodiments 1 to 3. This embodiment provides a weight lifting device, comprising a mounting seat 200 , a base 300 and a support column 400 .

[0044] Specifically, the mounting base 200 is welded to the coal feeder; the base 300 is detachably connected to the mounting base 200 via bolts; the base 100 is slidably mounted on the base 300; and the support column 400 is threadedly mounted on the base 300 and contacts the bottom of the base 100. By screwing the support column 400, the base 100 is raised. Compared to the prior art, by eliminating bearings and cam levers, this reduces maintenance costs and workload.

[0045] Preferably, a threaded hole 103 is provided at the bottom of the base 100, and a first through hole 301 is provided at the top of the base 300. The first through hole 301 is coaxially arranged with the threaded hole 103. A limit shaft 500 is slidably mounted in the first through hole 301, and the top of the limit shaft 500 is threadedly connected to the threaded hole 103. This allows the limit shaft 500 to accurately control the position of the base 100, thereby improving the stability and accuracy of the weight lifting device.

[0046] Preferably, a second through hole 302 is further provided on the top of the base 300, and the second through hole 302 passes through the upper and lower end surfaces of the base 300, and the support column 400 is threadedly connected to the second through hole 302. This improves the structural strength and durability of the entire weight lifting device.

[0047] Furthermore, the base 300 is provided with a stopper hole 303, which is connected to the first through hole 301. A locking post 600 is internally threadedly mounted in the stopper hole 303, and the locking post 600 interferes with the stopper shaft 500. This provides an additional locking mechanism to ensure the stability of the base 100 during the lifting process and prevent accidental movement or falling off.

[0048] When in use, the operator directly screws the support column 400, and the support column 400 conflicts with the base 100, thereby raising the height of the base 100. Compared with the existing technology, by eliminating bearings and cam levers, the maintenance cost and workload are reduced, and more labor is saved.

[0049] It is important to note that the construction and arrangement of the present application shown in a number of different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, colors, directional changes, etc.) without departing substantially from the novel teachings and advantages of the subject matter described in this application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature or number or position of the discrete elements may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "means plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also an equivalent structure. Without departing from the scope of the present invention, other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0050] Additionally, in order to provide a concise description of example embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0051] It will be appreciated that in the development of any actual embodiment, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will, for those of ordinary skill having the benefit of this disclosure, be a routine undertaking of design, fabrication, and production without undue experimentation.

[0052] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, and all of these should be included in the scope of the claims of the present invention.

Claims

1. A caliper, characterized in that: include: base (100); and a card slot (101) provided on the top of the base (100), wherein the card slot (101) is in an arc shape; A flange (102) is provided on the circumferential wall of the slot (101), the projection of the flange (102) on the horizontal plane is perpendicular to the axial direction of the slot (101), and both ends of the flange (102) in the length direction extend at most to be flush with the top of the base (100).

2. The caliper according to claim 1, wherein: The clamping groove (101) and the flange (102) are arranged concentrically.

3. The caliper according to claim 1 or 2, characterized in that: The flange (102) comprises a top portion (102a), and the distances between the top portion (102a) and the two ports in the length direction of the card slot (101) are equal.

4. The caliper according to claim 3, wherein: The flange (102) further includes a contact portion (102b), and the upper and lower ends of the contact portion (102b) are respectively connected to the top (102a) and the circumferential wall of the slot (101).

5. The caliper according to claim 4, wherein: The distance from the contact portion (102b) to the central axis surface of the flange (102) gradually increases from the contact portion (102b) toward the circumferential wall of the slot (101).

6. The caliper according to claim 2, wherein: The diameter of the slot (101) is 25 mm, the distance from the top of the flange (102) to the circumferential wall of the slot (101) is 3.5 mm, the axial length of the slot (101) is 20 mm, and the widest part of the flange (102) is 8 mm.

7. A weight lifting device, characterized in that: include: The caliper according to any one of claims 1 to 6, and A mounting base (200) fixed to the coal feeder; A base (300) is detachably connected to the mounting seat (200); the base (100) is slidably mounted on the base (300); A support column (400) is threadedly mounted on the base (300) and contacts the bottom of the pedestal (100).

8. The weight lifting device according to claim 7, characterized in that: A threaded hole (103) is provided at the bottom of the base (100), and a first through hole (301) is provided at the top of the base (300). The first through hole (301) is coaxially arranged with the threaded hole (103), and a limiting shaft (500) is slidably installed in the first through hole (301), and the top of the limiting shaft (500) is threadedly connected to the threaded hole (103).

9. The weight lifting device according to claim 7, characterized in that: The top of the base (300) is also provided with a second through hole (302), the second through hole (302) passes through the upper and lower end surfaces of the base (300), and the support column (400) is threadedly connected to the second through hole (302).

10. The weight lifting device according to claim 8, characterized in that: The base (300) is further provided with a limiting hole (303), the limiting hole (303) is connected to the first through hole (301), a locking column (600) is installed in the limiting hole (303) through an internal thread, and the locking column (600) conflicts with the limiting shaft (500).

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