Contact angle adjusting mechanism of rotating wheel support

Abstract

The utility model belongs to the technical field of rotating wheel supports, and particularly relates to a contact angle adjusting mechanism of a rotating wheel support. The tool comprises a base, lug plates are arranged on the side faces of the two ends of the base, and a plurality of pin holes are formed in the lug plates; the front ends of the rotating wheel fixing boxes are provided with extending hinge plates, the two rotating wheel fixing boxes are oppositely arranged on the base, and the two hinge plates are hinged to the middle of the base; the two rotating wheel frames are arranged on the top surface of the rotating wheel fixing box in a sliding manner; and a driving mechanism for driving the rotating wheel frame to move is arranged in the rotating wheel fixing box. The rotary wheel support is used for solving the technical problems that a rotary wheel support in the prior art cannot support a cylindrical workpiece under part of working conditions, or the included angle between the tangent point of the cylindrical workpiece supported by the rotary wheel support and the tangent point of a rotary wheel is too small, and the workpiece is prone to being unstable.

Description

Technical Field

[0001] The utility model belongs to the technical field of rotary wheel brackets, and particularly relates to a contact angle adjusting mechanism for a rotary wheel bracket. Background Technique

[0002] Rotary wheel brackets are widely used and can generally be used for the production and transportation of heavy cylindrical workpieces such as pipelines, containers, boilers, and oil tanks. The existing form of rotary wheel brackets is generally that two rotary wheel frames are slidably arranged on the plane of the base, and the distance between the two rotary wheel frames is adjusted to adapt to cylindrical workpieces of different diameters.

[0003] However, it is found in practice that when the diameter of the cylindrical workpiece is small, there are two situations. One is that when the rotary wheel frames are retracted to the shortest distance, the diameter of the cylindrical workpiece is smaller than the distance between the two rotary wheels, and the rotary wheels cannot support the workpiece. The other is that when the rotary wheel frames are retracted to the shortest distance, although the cylindrical workpiece can also be supported, the included angle between the tangent point of the cylindrical workpiece and the rotary wheel is too small, which easily causes the cylindrical workpiece to become unstable. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a contact angle adjusting mechanism for a rotary wheel bracket, which is used to solve the technical problems that in some working conditions of the existing rotary wheel bracket, the cylindrical workpiece cannot be supported, or the included angle between the tangent point of the supported cylindrical workpiece and the rotary wheel is too small, which easily causes the workpiece to become unstable.

[0005] The technical solution of the utility model to solve the above technical problems is as follows: A contact angle adjusting mechanism for a rotary wheel bracket, comprising:

[0006] A base, on the sides of both ends of the base, there are provided ear plates, and a plurality of pin holes are opened on the ear plates;

[0007] Two rotary wheel fixing boxes, at the front end of the rotary wheel fixing box, there is provided an extended hinge plate, the two rotary wheel fixing boxes are arranged opposite to each other on the base, and the two hinge plates are hinged in the middle of the base;

[0008] Two rotary wheel frames, the two rotary wheel frames are slidably arranged on the top surface of the rotary wheel fixing box;

[0009] A driving mechanism for driving the movement of the rotary wheel frame is arranged in the rotary wheel fixing box.

[0010] The rotating wheel frame of the present utility model can move on the rotating wheel fixing box, and the rotating wheel fixing box can rotate, thereby increasing the movement range of the rotating wheel frame from one-dimensional to two-dimensional. This makes the adjustment range of the rotating wheel frame wider. When supporting a small-diameter cylindrical workpiece, the included angle range with its tangent point is larger, and the support is more stable.

[0011] Further: The edges on both sides of the top plate of the rotating wheel fixing box extend beyond the rotating wheel fixing box.

[0012] The bottom plate of the rotating wheel frame is closely attached to the top plate of the rotating wheel fixing box, and clamping grooves are provided on both sides of the bottom plate, and the clamping grooves are clamped on the edges on both sides of the top plate.

[0013] Beneficial effect of this step: The rotating wheel frame fits better with the rotating wheel fixing box, and the contact area is larger, having better supporting force.

[0014] Further: The driving mechanism is a ball screw. The balls of the ball screw are fixedly connected to the bottom surface of the rotating wheel frame through fixing blocks. The screw rod of the ball screw is movably connected to the rotating wheel fixing box, and one end of the screw rod extends out of the rotating wheel fixing box.

[0015] A relief groove is provided on the top plate of the rotating wheel fixing box for making way for the fixing block.

[0016] Beneficial effect of this step: The position adjustment accuracy of the ball screw is high.

[0017] Further: The pin holes are used for placing pins or pin rods.

[0018] Beneficial effect of this step: The pins or pin rods are for positioning the rotating wheel fixing box.

[0019] Further: A number of the pin holes are divided into two columns, the distance of each column of pin holes is the same, and the distance between adjacent two columns of pin holes is staggered.

[0020] Beneficial effect of this step: The two staggered columns of pin holes can provide more positioning angles.

[0021] The beneficial effect of the present utility model is:

[0022] The rotating wheel frame of the present application can not only move back and forth on the rotating wheel fixing box, but also the rotating wheel fixing box can rotate around the middle of the base. This makes the movement range of the rotating wheel wider. It can not only be applicable to cylindrical workpieces of various diameters, but also keep the included angle between the cylindrical workpiece and the tangent point of the rotating wheel within a reasonable range, thereby achieving the effect of preventing the workpiece from becoming unstable. Description of the Drawings

[0023] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0024] Figure 1 A perspective view of a contact angle adjustment mechanism for a rotating wheel bracket provided by the present invention;

[0025] Figure 2 A structural schematic diagram of a contact angle adjustment mechanism for a rotating wheel bracket provided by the present invention;

[0026] Figure 3 For Figure 2 Side view;

[0027] Figure 4 An application schematic diagram of a contact angle adjustment mechanism for a rotating wheel bracket provided by the present invention;

[0028] Figure 5 An application schematic diagram of a contact angle adjustment mechanism for a rotating wheel bracket provided by the present invention for supporting small-diameter workpieces;

[0029] Figure 6 An application schematic diagram of a rotating wheel bracket in the prior art for supporting small-diameter workpieces.

[0030] Reference numerals:

[0031] 1 - Base; 2 - Rotating wheel fixing box; 3 - Rotating wheel bracket; 4 - Driving mechanism; 5 - Pin; 6 - Cylindrical workpiece;

[0032] 11 - Ear plate; 21 - Hinge plate; 22 - Relief groove;

[0033] 111 - Pin hole. Specific embodiments

[0034] The following will describe in detail the embodiments of the technical solutions of the present invention in conjunction with the drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention, so they are only examples and cannot be used to limit the protection scope of the present invention.

[0035] It should be noted that unless otherwise specified, the technical terms or scientific terms used in this application should have the ordinary meaning understood by those skilled in the art to which the present invention belongs.

[0036] In the description of the present application, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0037] In addition, terms such as "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless otherwise clearly and specifically defined.

[0038] In the present application, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0039] In the present application, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0040] Embodiment

[0041] As Figures 1 to 3 shown, a contact angle adjusting mechanism for a rotating wheel bracket provided by the present utility model includes:

[0042] A base 1, on both side surfaces of the two ends of the base 1, there are provided ear plates 11, and a plurality of pin holes 111 are opened on the ear plates 11;

[0043] Two rotating wheel fixing boxes 2, the front end of each rotating wheel fixing box 2 is provided with a protruding hinge plate 21, the two rotating wheel fixing boxes 2 are arranged oppositely on the base 1, and the two hinge plates 21 are hinged at the middle of the base 1;

[0044] Two rotating wheel frames 3, the two rotating wheel frames 3 are slidably arranged on the top surface of the rotating wheel fixing box 2;

[0045] The rotating wheel fixing box 2 is provided with a driving mechanism 4 for driving the rotating wheel frame 3 to move.

[0046] Specifically, Figures 4 to 6 As shown, the rotating wheel frame 3 of the utility model can move on the rotating wheel fixing box 2, that is, adjust the distance L, and the rotating wheel fixing box 2 can rotate, that is, adjust the size of the angle α, thereby increasing the rotating wheel frame 3 from a one-dimensional motion range to a two-dimensional motion range. In this way, the adjustment range of the rotating wheel frame 3 is wider, and it is suitable for workpieces with a larger diameter range. When supporting a small diameter cylindrical workpiece 6, the angle range with the tangent point is larger. Compared with the rotating wheel bracket in the prior art, the angle β between the small diameter cylindrical workpiece 6 and the rotating wheel in the present application is larger, which can provide more stable support.

[0047] On the basis of the above technical solution, the edges on both sides of the top plate of the rotating wheel fixing box 2 extend beyond the rotating wheel fixing box 2;

[0048] The bottom plate of the rotating wheel frame 3 is in close contact with the top plate of the rotating wheel fixing box 2, and two sides of the bottom plate are provided with clamping grooves, and the clamping grooves are clamped on the two side edges of the top plate.

[0049] The rotating wheel frame 3 is generally used to support heavy objects. If only two slide rails are used to connect the rotating wheel frame 3 and the rotating wheel fixing box 2, the slide rails will be easily damaged by heavy pressure, affecting the service life. The rotating wheel frame 3 in this embodiment fits more closely with the rotating wheel fixing box 2, has a larger contact area, and has better supporting force.

[0050] On the basis of the above technical solution, the driving mechanism 4 is a ball screw, the ball of the ball screw is fixedly connected to the bottom surface of the rotating wheel frame 3 through a fixing block, the screw of the ball screw is movably connected to the rotating wheel fixing box 2, and one end of the screw extends out of the rotating wheel fixing box 2;

[0051] A top plate of the rotating wheel fixing box 2 is provided with a clearance groove 22, and the clearance groove 22 is used to make way for the fixing block.

[0052] The driving mechanism 4 can have various structures, such as the ball screw used in this example, or the electric push rod, cylinder or hydraulic cylinder that are not used, etc. Among them, the ball screw has high position adjustment accuracy. In addition, the ball screw can be manually driven or electrically driven. A wrenching surface needs to be set at the top of the manually driven screw to facilitate rotation. The top of the electrically driven screw can be pin-connected to the output shaft of the motor through a coupling;

[0053] Based on the above technical solution, the pin hole 111 is used to place a pin or a pin rod.

[0054] Both the pin and the pin rod are for positioning the rotating wheel fixing box 2. The difference between the pin and the pin rod is that when using the pin rod, there is no need to open a hole on the side of the rotating wheel fixing box 2. The pin rod can support on the bottom surface of the rotating wheel fixing box 2, while the pin generally needs to be inserted into the rotating wheel fixing box 2. If the pin is placed under the rotating wheel fixing box 2 like the pin rod, the pin can only be supported by one pin hole 111 and is more likely to be deformed by shear force.

[0055] Based on the above technical solution, several of the pin holes 111 are divided into two columns, the distance of each column of the pin holes 111 is the same, and the distance between adjacent two columns of the pin holes 111 is staggered.

[0056] The two staggered columns of pin holes 111 can provide more positioning angles.

[0057] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A contact angle adjusting mechanism for a rotating wheel bracket, characterized in that, Comprising: A base, on the sides of both ends of the base are provided with ear plates, and a plurality of pin holes are opened on the ear plates; Two rotating wheel fixing boxes, the front end of the rotating wheel fixing box is provided with a protruding hinge plate, the two rotating wheel fixing boxes are oppositely arranged on the base, and the two hinge plates are hinged to the middle of the base; Two rotating wheel frames, the two rotating wheel frames are slidably arranged on the top surface of the rotating wheel fixing box; A driving mechanism for driving the movement of the rotating wheel frame is arranged in the rotating wheel fixing box.

2. The contact angle adjusting mechanism of the rotating wheel bracket according to claim 1, characterized in that The two side edges of the top plate of the rotating wheel fixing box extend beyond the rotating wheel fixing box; The bottom plate of the rotating wheel frame is closely attached to the top plate of the rotating wheel fixing box, and both sides of the bottom plate are provided with clamping grooves, and the clamping grooves are clamped on the two side edges of the top plate.

3. The contact angle adjusting mechanism of the rotary wheel bracket according to claim 1 or 2, characterized in that, The driving mechanism is a ball screw, the balls of the ball screw are fixedly connected with the bottom surface of the rotating wheel frame through fixing blocks, the screw rod of the ball screw is movably connected with the rotating wheel fixing box, and one end of the screw rod extends out of the rotating wheel fixing box; A relief groove is opened on the top plate of the rotating wheel fixing box, and the relief groove is used for making way for the fixing block.

4. The contact angle adjusting mechanism of the rotating wheel bracket according to claim 1, characterized in that, The pin holes are used for placing pins or pin rods.

5. The contact angle adjusting mechanism of the rotating wheel bracket according to claim 1, characterized in that, A plurality of the pin holes are divided into two columns, the distances of each column of pin holes are the same, and the distances between adjacent two columns of pin holes are staggered.

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