Ball chain connector and linear guide rail

Abstract

The utility model relates to the technical field of linear guide rails, in particular to a ball chain connector and a linear guide rail, the linear guide rail comprises a guide rail, a sliding block arranged on the guide rail in a sliding mode in the length direction of the guide rail, a return cover arranged at the end of the sliding block and a circulation channel, the ball chain connector is arranged in the circulation channel, and the ball chain connector comprises a ball chain and a guide rail, the connecting belt can be detached to form a closed loop; the spacers are arranged on the connecting belt at equal intervals, a mounting space used for containing the rolling bodies is formed between every two adjacent spacers, and the length of the connecting belt is larger than the circumference of the circulating channel by the diameter of one rolling body. According to the invention, the end part of the flexible connecting belt is disconnected, so that the connecting belt can form a closed loop, the end tail of the ball chain connector is prevented from being blocked when entering the through hole of the plastic-coated sliding block through the reversing cover, the friction force caused by the contact between the ball chain connector and the reversing cover is avoided, and the service life of the reversing cover and the ball chain connector is further prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the linear guide rail technical field, especially to a ball chain connector and linear guide rail. BACKGROUND

[0002] Rolling linear guide rail is widely used in various mechatronic devices. Rolling linear guide rail realizes the linear movement of the slider along the guide rail through the rolling between the rolling elements such as rollers or balls arranged in the slider. In order to ensure the stable rolling of the rolling elements between the slider and the guide rail, and to reduce the friction between the rolling elements, the steel balls are uniformly spaced to move, and the rolling elements are usually installed between the guide rail and the slider through the retaining chain.

[0003] The existing retaining chain is only installed between the slider and the guide rail. When the rolling elements move to the return cover from the end of the retaining chain, the retaining chain is prone to jamming, thereby affecting the running performance, causing wear to the retaining chain itself, and affecting the service life. In addition, when the end of the retaining chain enters the slider channel from the return cover, the end of the retaining chain is only subjected to a pushing force, and due to the tension of the retaining chain itself, a friction force is generated between the end of the retaining chain and the return cover, resulting in an increase in running resistance. CONTENT OF THE UTILITY MODEL

[0004] The technical problem to be solved by the present application is that the existing linear retaining chain arranged only between the slider and the guide rail causes the rolling elements to jam when passing through the position between the end of the retaining chain and the return cover, and causes damage to the retaining chain, resulting in an increase in running resistance and affecting the service life of the device.

[0005] Therefore, the present application provides a ball chain connector and a linear guide rail.

[0006] The technical solution adopted by the present application to solve the technical problem is:

[0007] A ball chain connector, comprising,

[0008] A connecting belt, which is made of flexible material capable of bending, and the two ends of the connecting belt are detachably connected to form a closed loop.

[0009] A plurality of spacers are arranged at equal intervals on the connecting belt, and an installation space for accommodating rolling elements is formed between adjacent spacers, and the rolling elements roll in the installation space.

[0010] Further, one end of the connecting belt is connected with a first connecting part, and the other end is connected with a second connecting part, and the first connecting part and the second connecting part are respectively provided with an insertion block and an insertion slot, and when the connecting belt is closed to form a ring, the insertion block and the insertion slot are inserted.

[0011] Further, the first connecting part and the second connecting part are provided with mounting surfaces, the plug and the slot are arranged on the mounting surfaces, and the mounting surface on the first connecting part and the mounting surface on the second connecting part are attached when the plug is arranged in the slot.

[0012] Further, the first connecting part is connected with a first intermediate plug plate at one end close to the connecting band, the first connecting part is connected with a first end plug plate at one end away from the connecting band, the second connecting part is connected with a second intermediate plug plate at one end close to the connecting band, and the second connecting part is connected with a second end plug plate at one end away from the connecting band, the first intermediate plug plate and the second end plug plate are inserted and combined to form a first connecting partition plate, the first end plug plate and the second intermediate plug plate are inserted and combined to form a second connecting partition plate, a connecting space is formed between the first connecting partition plate and the second connecting partition plate, and a connecting ball is embedded in the connecting space.

[0013] Further, the diameter of the connecting ball is smaller than the diameter of the rolling body.

[0014] Further, the plane on the first intermediate plug plate away from the connecting band is plane a, the plane on the second intermediate plug plate away from the connecting band is plane b, the side wall of the first end plug plate away from the first connecting part is set as plane B, the side wall of the second end plug plate away from the second connecting part is set as plane A, the plane A is attached to the plane a when the first intermediate plug plate and the second end plug plate are inserted and combined, and the plane B is attached to the plane b when the first end plug plate and the second intermediate plug plate are inserted and combined.

[0015] Further, the side wall of the first end plug plate and the second end plug plate facing the connecting space is provided with an embedding groove, and the embedding groove is set as an arc shape attached to the side wall of the connecting ball.

[0016] Further, the side wall of the first intermediate plug plate and the second intermediate plug plate close to the connecting band is also provided with a rolling groove, and the rolling groove on the first intermediate plug plate and the second intermediate plug plate and the adjacent partition plate form a mounting space.

[0017] Further, the connecting band is arranged on both sides of the partition plate along the arrangement direction of the plurality of partition plates, the side wall of the connecting band and the partition plate facing the mounting space is provided with a rolling groove, and the rolling groove is adapted to the shape of the rolling body.

[0018] A linear guide rail, comprising,

[0019] a guide rail, and a sliding block arranged on the guide rail along the length direction of the guide rail;

[0020] a return cover arranged at the end of the sliding block;

[0021] A circulation channel is arranged between the guide rail and the sliding block, and ends of the circulation channel are located between the sliding block and the return cover.

[0022] The ball chain connector as described above is located in the circulation channel, and a length of the connecting belt is longer than a circumference of the circulation channel by a diameter of one rolling body.

[0023] The ball chain connector of the utility model has the advantages that the plug block and the plug groove structure are arranged at the end of the connecting belt, the end of the flexible connecting belt is quickly connected, the connecting belt can form a closed loop, and the connecting belt is convenient to disassemble and assemble. The end of the ball chain connector smoothly passes through the through hole of the return cover and the plastic-coated sliding block, the end of the ball chain connector is subjected to both the thrust force and the tensile force when the rolling body enters the load area at the end of the ball chain connector, the rolling body enters the load area of the sliding block more smoothly, the ball chain connector and the return cover are not in contact to generate friction, and the service life of the return cover and the ball chain connector is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] The utility model is further described below in combination with the drawings and the embodiments.

[0025] Figure 1 Fig. 1 is a structural schematic view of the ball chain connector in the utility model.

[0026] Figure 2 Fig. 2 is a schematic view of the butt joint of the end of the connecting belt in the utility model.

[0027] Figure 3 Fig. 3 is a structural schematic view of the end of the connecting belt before butt joint in the utility model.

[0028] Figure 4 Fig. 4 is a structural schematic view of the end of the connecting belt after butt joint in the utility model.

[0029] In the drawings: 1, connecting belt; 2, spacer; 3, mounting space; 4, rolling groove; 5, first connecting part; 6, second connecting part; 7, plug block; 8, plug groove; 9, first intermediate plug plate; 10, first end plug plate; 11, first connecting spacer; 12, second intermediate plug plate; 13, second end plug plate; 14, second connecting spacer; 15, plane A; 16, plane a; 17, plane B; 18, plane b; 19, connecting space; 20, mounting surface; 21, embedding groove. DETAILED DESCRIPTION

[0030] The utility model will be further described in combination with the drawings. The drawings are all simplified schematic views, and only illustrate the basic structure of the utility model in a schematic manner, and thus only show the components related to the utility model.

[0031] In the description of the utility model, it needs to be understood that, the orientation or positional relation indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" are based on the orientation or positional relation shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model. In addition, the features limited by "first" and "second" can explicitly or implicitly include one or more features. In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0032] In the description of the utility model, it needs to be understood that, unless otherwise explicitly specified and limited, the terms "mounting", "connection" and "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0033] A linear guide rail, comprising a guide rail, a slider and a return cover. The slider and the guide rail form a ball channel, the return cover is connected to the end of the slider, the side wall of the return cover facing the slider is provided with an arc-shaped channel communicated with the ball channel, the arc-shaped channel and the ball channel together constitute a circulating channel, a plurality of balls are installed between the slider and the slide rail through the ball chain connector, and the balls circulate and roll in the circulating channel through the ball chain connector.

[0034] Reference Figure 1 A ball chain connector, comprising a connecting belt 1 and a spacer 2, a plurality of spacers 2 are provided, the plurality of spacers 2 are equidistantly arranged and connected with the connecting belt 1, the spacers 2 connected with each other form a mounting space 3 for mounting rolling bodies, and the rolling bodies can be steel balls or rollers. In the embodiment, the spacer 2 is circular, and the connecting belt 1 is provided with two symmetrically arranged spacers 2 on both sides of the spacer 2.

[0035] The side wall of the connecting belt 1 and the spacer 2 facing the mounting space 3 is provided with a rolling groove 4, and the rolling groove 4 is matched with the shape of the rolling body. In the embodiment, the rolling body is a steel ball, and in the embodiment, the rolling groove 4 is arc-shaped, so that the rolling body is embedded in the mounting space 3 through the rolling groove 4.

[0036] It should be noted that the connecting belt 1 is flexible material that can be bent, and the two ends of the connecting belt 1 can be detachably connected together, so that the connecting belt 1 forms a ring structure, and the two end portions of the connecting belt 1 are connected with the connecting portions, which are integrally formed with the connecting belt 1.

[0037] Specifically, referring to Figure 2 , one end of the connecting belt 1 is connected with the first connecting portion 5, and the other end is connected with the second connecting portion 6, and the first connecting portion 5 and the second connecting portion 6 are provided with mounting surfaces 20, and the mounting surfaces 20 are provided with insertion slots 8 and insertion blocks 7, when the connecting belt 1 is closed to form a ring, the mounting surface 20 on the first connecting portion 5 and the mounting surface 20 on the second connecting portion 6 are opposite and fit, the insertion block 7 is inserted with the insertion slot 8, so as to fix the end portion of the connecting belt 1. It should be noted that the thickness of the first connecting portion 5 and the second connecting portion 6 is half of the connecting belt 1, and the mounting surface 20 on the first connecting portion 5 and the mounting surface 20 on the second connecting portion 6 fit to form an extension of the connecting belt 1.

[0038] The first connecting portion 5 is connected with the first intermediate insertion plate 9 near one end of the connecting belt 1, and the first connecting portion 5 is connected with the first end insertion plate 10 away from one end of the connecting belt 1, and the second connecting portion 6 is connected with the second intermediate insertion plate 12 near one end of the connecting belt 1, and the second connecting portion 6 is connected with the second end insertion plate 13 away from one end of the connecting belt 1. The first intermediate insertion plate 9 and the second intermediate insertion plate 12 are also provided with rolling grooves 4 on the side walls close to the connecting belt 1, and the rolling grooves 4 on the first intermediate insertion plate 9 and the second intermediate insertion plate 12 form mounting spaces 3 between the adjacent partition plates 2, and the side walls of the first intermediate insertion plate 9 and the second intermediate insertion plate 12 away from the connecting belt 1 are flat, the plane a16 on the first intermediate insertion plate 9 away from the connecting belt 1, and the plane b18 on the second intermediate insertion plate 12 away from the connecting belt 1; The side wall of the first end insertion plate 10 facing the first connecting portion 5 is provided with an embedding groove 21, and the side wall of the first end insertion plate 10 away from the first connecting portion 5 is flat, which is a plane B17, and the side wall of the second end insertion plate 13 facing the second connecting portion 6 is also provided with an embedding groove 21, and the side wall of the second end insertion plate 13 away from the second connecting portion 6 is flat, which is a plane A15.

[0039] Referring to Figure 3 , 4, the first intermediate plug-in plate 9, the second end plug-in plate 13, the first end plug-in plate 10 and the second intermediate plug-in plate 12 are staggered, the two ends of the connecting belt 1 are inserted together through the plug-in blocks 7 and the plug-in slots 8, along the insertion direction of the plug-in blocks 7 and the plug-in slots 8, the plane A15 and the plane a16 are attached together to form the first connecting partition plate 11, the first end plug-in plate 10 and the second intermediate plug-in plate 12 are inserted together, the plane B17 and the plane b18 are attached together to form the second connecting partition plate 14, and the connecting space 19 is formed between the first connecting partition plate 11 and the second connecting partition plate 14, a connecting ball is embedded in the connecting space 19, the embedding slots 21 on the first end plug-in plate 10 and the embedding slots 21 on the second end plug-in plate 13 are both arranged in an arc shape and attached to the side wall of the connecting ball, and the diameter of the connecting ball is smaller than the diameter of the rolling body.

[0040] The two ends of the connecting belt 1 are inserted together, and the connecting ball embedded in the connecting space 19 at the butt joint of the two ends of the connecting belt 1, so that the connecting belt 1 forms a closed loop, and the steel balls are located in the mounting spaces 3 between the adjacent partition plates 2 and the intermediate plug-in plates.

[0041] During the installation of the ball chain connector in the circulating channel of the linear guide rail, the connecting ball can bear the pulling force and the pushing force on the two sides of the connecting belt 1, and can fix the connecting belt 1, at this time, the connecting belt 1 forms a closed loop, and the two ends completely coincide together, and can smoothly circulate, avoiding the jamming of the end of the connecting belt 1 when passing through the return cover and entering the through hole of the plastic-coated slider, and the friction force generated between the end of the connecting belt 1 and the return cover when passing through the return cover, and the end of the connecting belt 1 which has not entered the load area will be subjected to the pulling force of the end which has entered the load area when the end of the connecting belt 1 enters the slider channel (slider load area) from the return cover, so that the connecting belt 1 can more easily enter the load area. In addition, it should be noted that the length of the connecting belt 1 is greater than the circumference of the slider circulating channel by a length of about one steel ball diameter, which enables the ball chain connector to have self-adjusting capability, avoiding the overlength of the ball chain connector due to the expansion of the connecting belt 1 caused by the increase of the temperature in the circulating channel, which causes the friction force between the connecting belt 1 and the circulating channel, and avoiding the breakage of the connecting belt 1 caused by the shortening of the ball chain connector due to the decrease of the temperature in the circulating channel.

[0042] Based on the above ideal embodiments of the present application, through the above description, relevant personnel can make various changes and modifications without deviating from the technical concept of the present application. The technical scope of the present application is not limited to the content in the specification, and must be determined by the scope of the claims.

Claims

1. A ball chain connector characterized by, The utility model relates to a kind of connecting belt and connecting ball, including, Connecting belt (1), the connecting belt (1) is flexible material that can be bent, two ends of the connecting belt (1) are detachably connected, so that the connecting belt (1) forms closed loop; A plurality of spacers (2) are equidistantly spaced on the connecting belt (1), and a mounting space (3) for accommodating a rolling element is formed between adjacent spacers (2).

2. The ball chain connector of claim 1, wherein One end of the connecting belt (1) is connected to a first connecting portion (5), and the other end is connected to a second connecting portion (6). The first connecting portion (5) and the second connecting portion (6) are respectively provided with an insertion block (7) and an insertion slot (8). When the connecting belt (1) is closed to form a ring, the insertion block (7) is inserted into the insertion slot (8).

3. The ball chain connector of claim 2, wherein The first connecting portion (5) and the second connecting portion (6) are each provided with a mounting surface (20). The insertion block (7) and the insertion slot (8) are arranged on the mounting surface (20). When the insertion block (7) is inserted into the insertion slot (8), the mounting surface (20) of the first connecting portion (5) and the mounting surface (20) of the second connecting portion (6) are attached.

4. The ball chain connector of claim 2, wherein The first connecting portion (5) is connected to a first intermediate insertion plate (9) near one end of the connecting belt (1). The first connecting portion (5) is connected to a first end insertion plate (10) away from one end of the connecting belt (1). The second connecting portion (6) is connected to a second intermediate insertion plate (12) near one end of the connecting belt (1). The second connecting portion (6) is connected to a second end insertion plate (13) away from one end of the connecting belt (1). When the insertion block (7) is inserted into the insertion slot (8), the first intermediate insertion plate (9) and the second end insertion plate (13) are inserted to form a first connecting partition plate (11). The first end insertion plate (10) and the second intermediate insertion plate (12) are inserted to form a second connecting partition plate (14). A connecting space (19) is formed between the first connecting partition plate (11) and the second connecting partition plate (14). A connecting ball is embedded in the connecting space (19).

5. The ball chain connector of claim 4, wherein, The diameter of the connecting ball is smaller than the diameter of the rolling element.

6. The ball chain connector of claim 4, wherein, The plane of the first intermediate insertion plate (9) away from the connecting belt (1) is plane a (16). The plane of the second intermediate insertion plate (12) away from the connecting belt (1) is plane b (18). The side wall of the first end insertion plate (10) away from the first connecting portion (5) is plane B (17). The side wall of the second end insertion plate (13) away from the second connecting portion (6) is plane A (15). When the first intermediate insertion plate (9) and the second end insertion plate (13) are inserted, plane A (15) is attached to plane a (16). When the first end insertion plate (10) and the second intermediate insertion plate (12) are inserted, plane B (17) is attached to plane b (18).

7. The ball chain connector of claim 4, wherein The side wall of the first end insertion plate (10) and the second end insertion plate (13) facing the connecting space (19) is respectively provided with an embedding groove (21). The embedding groove (21) is arranged in an arc shape and attached to the side wall of the connecting ball.

8. The ball chain connector of claim 4, wherein, The first intermediate insert plate (9) and the second intermediate insert plate (12) are also provided with rolling grooves (4) near the side walls of the connecting belt (1), and the rolling grooves (4) on the first intermediate insert plate (9) and the second intermediate insert plate (12) form mounting spaces (3) with the adjacent spacers (2).

9. The ball chain connector of claim 1, wherein, The connecting belt (1) is arranged on both sides of the spacers (2) along the arrangement direction of the spacers (2), and the connecting belt (1) and the spacers (2) are all provided with rolling grooves (4) on the side walls facing the mounting spaces (3), and the rolling grooves (4) are matched with the shapes of the rolling bodies.

10. A linear guide rail characterized by comprising: Comprise, A guide rail, and a sliding block arranged on the guide rail and sliding along the length direction of the guide rail; A return cover arranged at the end of the sliding block; A circulation channel arranged between the guide rail and the sliding block, and the end of the circulation channel is located between the sliding block and the return cover; The ball chain connector according to any one of claims 1-9 is located in the circulation channel, and the length of the connecting belt (1) is longer than the circumference of the circulation channel by the diameter of one rolling body.

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