Chain sheet

Abstract

The utility model provides a chain sheet. The chain sheet comprises two end parts with arc-shaped areas; the two ends of the connecting area are in smooth connection with the corresponding arc-shaped areas, at least one positioning hole is formed in the connecting area, and pin holes used for inserting connecting pins are correspondingly formed in the end, close to the conveying arc-shaped areas, of the connecting area. The center point of the positioning hole and the circle center of the pin hole are located on the same horizontal extension line. The chain sheet produced by the utility model can be formed only by punch forming, the processing technology is simple, and the chain sheet is suitable for rapid mass production; and the formed holes can assist in draining and exhausting water, discharging moisture and helping internal air circulation, and on the premise that the strength is not affected, the lightweight design is adopted, so that energy consumption is reduced, the operation efficiency is improved, the surface area of the chain piece is increased, the heat exchange effect is enhanced, and heat dissipation is assisted.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator parts and tools, in particular to a chain piece. Background Art

[0002] The application of chain plates in elevators usually refers to the components of traction chains. The traction chain is an important load-bearing and transmission component in traction-driven elevators. It is composed of a series of chain links connected by pins, and each chain link contains two chain plates and a pin in the middle.

[0003] The chain plates of existing elevator traction chains are simple flat plates with mounting holes for connecting guide rails. During the punching process of the chain plates, it is difficult for mechanical equipment to accurately position the chain plates, and the production process is relatively complicated due to the multiple processing steps. Utility Model Content

[0004] In view of the deficiencies in the above-mentioned prior art, the purpose of the present utility model is to provide a chain plate.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a chain piece, comprising: two ends having an arc-shaped area;

[0006] And a connecting area, wherein both ends of the connecting area are smoothly connected to the corresponding arc-shaped area, at least one positioning hole is provided in the connecting area, and a pin hole for inserting a connecting pin is correspondingly opened on the connecting area and close to the end of the conveying arc-shaped area, and the center point of the positioning hole and the center point of the pin hole are located on the same horizontal extension line.

[0007] Furthermore, the positioning hole is selected from a geometrically regular figure having a center point.

[0008] Furthermore, the distance from the center point of the positioning hole to the center point of the pin holes at both ends forms an equidistant relative arrangement.

[0009] As a preferred solution of the present application, the positioning holes are relatively arranged and are planar recessed holes opened in the connection area.

[0010] Furthermore, the distances from the center of the positioning hole to the center of the corresponding pin hole are equal.

[0011] Furthermore, the arc-shaped area and the connecting area are an integrally formed plane.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: the chain plate produced in the present application only needs to be stamped and formed, the processing technology is simple, and it is suitable for rapid mass production; and the holes opened can assist in drainage and exhaust, help discharge moisture, and help internal air circulation. Without affecting the strength, the lightweight design can reduce energy consumption and improve operating efficiency, increase the surface area of ​​the chain plate, enhance the heat exchange effect, and thus assist in heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0014] Figure 1 This is a schematic diagram of the main structure of Embodiment 1 of the present utility model;

[0015] Figure 2 This is a schematic diagram of the main structure of the second embodiment of the present utility model;

[0016] Figure 3 It is a diagram for use in the best embodiment of the utility model;

[0017] Figure 4 This is a schematic diagram of the first structure of the third embodiment of the present utility model;

[0018] Figure 5 This is a second structural schematic diagram of the third embodiment of the present utility model;

[0019] Figure 6 This is a schematic diagram of the first structure of the fourth embodiment of the present utility model;

[0020] Figure 7 This is a second structural schematic diagram of the fourth embodiment of the present utility model;

[0021] Figure 8 This is a third structural schematic diagram of the fourth embodiment of the present utility model;

[0022] Fig. 9 This is a schematic diagram of the structure of Embodiment 5 of the present invention.

[0023] In the figure: 1, arc area; 2, connection area; 3, pin hole; 4, positioning hole. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] Embodiment 1:

[0026] like Figure 1 , Figure 4 As shown, the present application discloses a chain piece, comprising: two ends having an arc-shaped region 1, each of the arc-shaped regions 1 having an arc-shaped outer contour;

[0027] and a connecting area 2, wherein both ends of the connecting area 2 are smoothly connected to the corresponding arc-shaped area 1, and the connecting area and the arc-shaped area 1 of the present application are integrally formed to form a chain plate body, and the arc-shaped area 1 is relatively arranged at the end of the connecting area,

[0028] When punching the pin hole 3 of the chain plate, it is necessary to use a precision drilling machine for positioning according to the design requirements and specifications to punch holes at a preset position and depth, wherein the punching accuracy directly affects the assembly accuracy, operation effect and service life of the chain. The existing production process requires multiple processes for processing, and the production process is relatively complicated. For this reason, the applicant provides at least one positioning hole 4 in the connecting area 2, and a pin hole 3 for inserting a connecting pin is correspondingly opened at the end of the connecting area 2 close to the arc area 1, and the center point of the positioning hole 4 is located on the same horizontal extension line as the center point of the pin hole 3, so that In order to punch and guide the pin hole 3 to avoid displacement or misalignment, although the technical feature of adding the positioning hole 4 adopted in the present application has an additional punching process, the setting of the positioning hole 4 can reduce the weight of the chain plate to achieve a lightweight design, thereby reducing energy loss and improving operating efficiency. Secondly, opening more holes helps to increase the surface area and enhance the heat exchange effect, thereby assisting in heat dissipation; it can exhaust and divert air, and the holes provided can help internal air circulation to ensure the internal and external pressure difference, and increase the residence time of the cooling lubricant between the chain plates. The setting of the positioning hole 4 greatly improves the yield rate of the chain plate, specifically as high as 97%.

[0029] like Figure 1 As shown, the distances from the positioning holes 4 to the centers of the pin holes 3 at both ends form an equidistant relative arrangement, that is, d1=d2, and the horizontal extension line of the positioning holes 4 coincides with the axis passing through the centers of the pin holes 3 at both ends.

[0030] In this embodiment, the positioning hole 4 is selected from a regular geometric shape with a center point, including but not limited to a circle, an ellipse, a triangle, a quadrilateral, a regular polygon, etc., but for the convenience of the punching process, the positioning hole 4 is preferably a circle, that is, the shape of the positioning hole 4 is consistent with the structure of the pin hole 3.

[0031] Embodiment 2:

[0032] like Figure 2 , Figure 3As shown, different from the first embodiment, two positioning holes 4 are provided in the present application, and the positioning holes 4 are relatively arranged and are planar recessed holes opened in the connecting area 2, and the positioning holes 4 correspond to the adjacent pin holes 3. Similarly, in the present embodiment, the distance from the center of the positioning hole 4 to the center of the corresponding pin hole 3 is the same, that is, D1=D2; that is, the distance from the center point of the positioning hole 4 to the corresponding pin hole 3 is consistent, and the horizontal extension line passing through the center of the positioning hole 4 coincides with the horizontal extension line passing through the pin hole 3.

[0033] The present application defines the outer shape of the positioning holes 4 on the basis of the third embodiment, and the two positioning holes 4 are consistent with the circular structure of the pin hole 3 .

[0034] Embodiment three:

[0035] like Figure 4 As shown, the difference from the first embodiment is that the shape of the positioning hole 4 is an elliptical structure with an arc-shaped outer contour. Specifically, the present application preferably has a runway-shaped structure, which is composed of two semicircles and two straight lines spliced ​​together. The use of a runway-shaped pattern in the present application can improve the fault tolerance of the hole opening, thereby simplifying the production process.

[0036] Embodiment 4:

[0037] like Figure 5-7 As shown, the present application defines the shape of the positioning hole 4 based on the third embodiment, and both positioning holes 4 have an elliptical structure with an arc-shaped outer contour, wherein the elliptical structure is preferably a runway-shaped structure, which is composed of two semicircles and two straight lines. The positioning hole 4 can be set as two opposite horizontally arranged runway-shaped structures, or two vertically arranged runway-shaped structures, and one horizontally and one vertically arranged runway-shaped structure.

[0038] Embodiment five:

[0039] like Figure 8-9 As shown, the present application limits the shape of the positioning hole 4 on the basis of the third embodiment, that is, one of the positioning holes 4 can be set to be consistent with the circular structure of the pin hole 3, and the other positioning hole 4 is an elliptical structure with an arc-shaped outer contour.

[0040] For the present application, the above improvement is mainly achieved by adding positioning holes 4 to increase the hole forming rate of the chain sheet.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A chain plate, comprising: two ends having an arc-shaped region (1); and a connecting area (2), wherein both ends of the connecting area (2) are smoothly connected to the corresponding arc-shaped area (1), characterized in that: At least one positioning hole (4) is provided in the connection area (2), and a pin hole (3) for inserting a connection pin is correspondingly provided on the connection area (2) and at the end close to the conveying arc area (1), and the center point of the positioning hole (4) and the center point of the pin hole (3) are located on the same horizontal extension line.

2. A chain sheet according to claim 1, characterized in that: The positioning hole (4) is selected from a geometrically regular pattern having a center point.

3. A chain sheet according to claim 2, characterized in that: The distance from the center point of the positioning hole (4) to the center point of the pin holes (3) at both ends forms an equidistant relative arrangement.

4. A chain sheet according to claim 2, characterized in that: The positioning holes (4) are arranged relatively to each other and are planar recessed holes opened in the connection area (2).

5. A chain sheet according to claim 4, characterized in that: The distance from the center of the positioning hole (4) to the center of the corresponding pin hole (3) is equal.

6. A chain sheet according to claim 1, characterized in that: The arc-shaped area (1) and the connecting area (2) are an integrally formed plane.

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