Adjustable wire guide

Abstract

The present invention discloses an adjustable wire guide plate, comprising: a wire guide plate assembly and a multi-point telescopic curvature adjustment assembly; wherein, a wire rope groove is provided on the outer edge of the wire guide plate assembly, and the wire rope groove extends from the upper front end of the wire guide plate assembly to the bottom of the wire guide plate assembly; an adjustment assembly installation groove is provided at the bottom of the wire guide plate assembly, and the adjustment assembly installation groove is connected with the wire rope groove at the bottom of the wire guide plate assembly; the multi-point telescopic curvature adjustment assembly is arranged in the adjustment assembly installation groove, the rear end of the multi-point telescopic curvature adjustment assembly is connected with the top of the adjustment assembly installation groove, and each telescopic end of the front end of the multi-point telescopic curvature adjustment assembly extends into the wire rope groove, and can telescopically support and adjust the curvature of the wire rope arranged in the wire rope groove. The adjustable wire guide plate can be conveniently adjusted on the pantograph to obtain the correct wire guide plate curve, and the wire guide plate with a curve that meets the requirements can be quickly and conveniently manufactured.

Description

Technical Field

[0001] The invention relates to the field of pantographs for electric locomotives, and in particular to a wire guide plate used on the pantograph. Background Art

[0002] The high voltage electricity used by electric locomotives and urban rail trams on the railway is received by the pantograph from the grid line to the locomotive. During the current collection process, the carbon plate on the pantograph head is required to be in stable contact with the grid line at every point at the working height, with the same contact force and tolerances that meet the relevant national standards. How different types of pantographs meet the requirements of the static force of the contact network is ensured by adjusting the curve of the wire guide plate on the lower arm of the pantograph.

[0003] In the past, the adjustment of the wire guide curve was carried out on the test equipment according to the static curve diagram of the contact force between the carbon slide plate of the pantograph and the network line. When the static force at a certain point on the bow head increases, the corresponding wire guide curve point at the working height is reduced by a certain size; when the static force at a certain point on the bow head decreases, the corresponding wire guide curve point at the working height is increased by a certain size; and the size of this size is generally padded with paper or copper sheet thickness at the low point according to experience, and the wire guide is removed at the high point, and the high point is milled according to the approximate value of experience, and then installed and re-looked at the static curve diagram. In this way, it is roughly estimated that the wire guide curve trajectory will be modified repeatedly at least 5 times to meet the pantograph static curve tolerance requirements and finally determine the type of pantograph wire guide curve. This adjustment process often requires the removal of the drive device and wire guide, and then the wire guide curve is processed, and then installed and tested again, which is very time-consuming and wastes a lot of manpower and material resources, becoming a bottleneck in the development of pantographs.

[0004] In view of this, the present invention is proposed. Summary of the invention

[0005] The purpose of the present invention is to provide an adjustable wire guide plate, which can be easily adjusted to obtain the correct wire guide plate curve without disassembly, so as to facilitate the rapid production of a wire guide plate with a curve that meets the requirements, thereby solving the above-mentioned technical problems existing in the prior art.

[0006] The objective of the present invention is achieved through the following technical solutions:

[0007] An embodiment of the present invention provides an adjustable wire guide plate, comprising:

[0008] A wire guide assembly and a multi-point telescopic curvature adjustment assembly; wherein,

[0009] A wire rope groove is provided on the outer edge of the wire guide assembly, and the wire rope groove extends from the upper front end of the wire guide assembly to the bottom of the wire guide assembly;

[0010] An adjustment assembly installation groove is provided at the bottom of the wire guide assembly, and the adjustment assembly installation groove is communicated with the wire rope groove at the bottom of the wire guide assembly;

[0011] The multi-point telescopic curvature adjustment component is arranged in the adjustment component installation groove, the rear end of the multi-point telescopic curvature adjustment component is connected to the top of the adjustment component installation groove, and the telescopic ends of the front end of the multi-point telescopic curvature adjustment component extend into the wire rope groove, and can telescopically support and adjust the curvature of the wire rope set in the wire rope groove.

[0012] Compared with the prior art, the adjustable wire guide provided by the present invention has the following beneficial effects:

[0013] By setting up a multi-point telescopic curvature adjustment component and utilizing the telescopic ends at the front end of the multi-point telescopic curvature adjustment component, the curvature of the wire rope supported in the wire rope groove can be adjusted, that is, the wire guide curve can be adjusted, thereby quickly meeting the static curve tolerance requirements of the pantograph and obtaining the correct wire guide curve. Since there is no need for disassembly and repeated debugging, the trial production work can be completed in one go, saving a lot of manpower and material resources, greatly shortening the research and development time of the pantograph and improving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0015] Figure 1 A schematic diagram of the structure of an adjustable wire guide plate provided in an embodiment of the present invention;

[0016] Figure 2 A schematic side view of an adjustable wire guide plate provided in an embodiment of the present invention;

[0017] Figure 3 for Figure 2 A schematic cross-sectional view at BB of FIG.

[0018] Figure 4 A schematic diagram of an adjustable wire guide provided in an embodiment of the present invention being arranged on a pantograph;

[0019] Figure 5 A schematic diagram of the installation state of the adjustable wire guide plate provided in an embodiment of the present invention;

[0020] Figure 6 A schematic diagram of the internal structure of the adjustable wire guide plate in the installation state provided by an embodiment of the present invention;

[0021] In the figure: 1-wire guide assembly; 11-first baffle; 111-first long strip through groove; 12-wire guide body; 13-second baffle; 14-clamping fixing block; 15-adjustment assembly mounting groove; 16-wire rope groove; 2-multi-point telescopic curvature adjustment assembly; 21-locking nut; 22-adjustment stud; 23-floating block; 10-adjustable wire guide; 20-driving spring; 30-carbon slide plate; 40-lower arm; 50-wire rope. DETAILED DESCRIPTION

[0022] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in combination with the specific content of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, not all of the embodiments, which does not constitute a limitation of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the protection scope of the present invention.

[0023] First, the terms that may be used in this article are explained as follows:

[0024] The term “and / or” means that either or both of them can be realized at the same time. For example, X and / or Y means both “X” or “Y” and “X and Y”.

[0025] The terms "include", "comprises", "contains", "has" or other descriptions with similar semantics should be interpreted as non-exclusive inclusion. For example, including certain technical feature elements (such as raw materials, components, ingredients, carriers, dosage forms, materials, dimensions, parts, components, mechanisms, devices, steps, procedures, methods, reaction conditions, processing conditions, parameters, algorithms, signals, data, products or products, etc.) should be interpreted as including not only certain technical feature elements explicitly listed, but also other technical feature elements known in the art that are not explicitly listed.

[0026] The term "consisting of..." means excluding any technical feature elements not explicitly listed. If this term is used in a claim, it will make the claim closed, so that it does not contain technical feature elements other than the technical feature elements explicitly listed, except for the conventional impurities related to them. If this term only appears in a clause of a claim, it only limits the elements explicitly listed in the clause, and the elements recorded in other clauses are not excluded from the overall claim.

[0027] Unless otherwise specified or limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example: it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this article can be understood according to specific circumstances.

[0028] When concentration, temperature, pressure, size or other parameters are expressed in the form of a numerical range, the numerical range should be understood to specifically disclose all ranges formed by the pairing of any upper limit, lower limit, and preferred value in the numerical range, regardless of whether the range is explicitly stated; for example, if a numerical range of "2 to 8" is stated, the numerical range should be interpreted as including ranges such as "2 to 7", "2 to 6", "5 to 7", "3 to 4 and 6 to 7", "3 to 5 and 7", "2 and 5 to 7", etc. Unless otherwise specified, the numerical ranges stated herein include both their end values ​​and all integers and fractions within the numerical range.

[0029] The orientation or position relationship indicated by terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. are based on the orientation or position relationship shown in the drawings and are only for the convenience and simplification of description, and do not explicitly or implicitly indicate 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 understood as a limitation of this document.

[0030] The adjustable wire guide provided by the present invention is described in detail below. The contents not described in detail in the embodiments of the present invention belong to the prior art known to professional and technical personnel in the field. If no specific conditions are specified in the embodiments of the present invention, the conventional conditions in the field or the conditions recommended by the manufacturer are followed. The reagents or instruments used in the embodiments of the present invention, if the manufacturer is not specified, are all conventional products that can be purchased commercially.

[0031] like Figure 1 , 2 As shown in FIG. 3 , an embodiment of the present invention provides an adjustable wire guide plate, comprising:

[0032] Wire guide plate assembly 1 and multi-point telescopic curvature adjustment assembly 2; wherein,

[0033] A wire rope groove 16 is provided on the outer edge of the wire guide assembly 1, and the wire rope groove 16 extends from the upper front end of the wire guide assembly 1 to the bottom of the wire guide assembly 1;

[0034] The bottom of the wire guide assembly 1 is provided with an adjustment assembly installation groove 15, and the adjustment assembly installation groove 15 is communicated with the wire rope groove 16 at the bottom of the wire guide assembly 1;

[0035] The multi-point telescopic curvature adjustment component 2 is arranged in the adjustment component installation groove, the rear end of the multi-point telescopic curvature adjustment component is connected to the top of the adjustment component installation groove, and the telescopic ends of the front end of the multi-point telescopic curvature adjustment component 2 extend into the wire rope groove 16, and can telescopically support and adjust the curvature of the wire rope set in the wire rope groove 16.

[0036] In the above-mentioned adjustable wire guide plate, the wire guide plate assembly comprises:

[0037] The wire guide body 12, the first baffle 11, the second baffle 13, the clamping block 14 and the fixing bolts;

[0038] The first baffle 11 and the second baffle 13 are arranged on both sides of the wire guide body 12 to clamp the wire guide body 12, and the clamping fixing block 14 and two clamping bolts are arranged at intervals on the upper ends of the first baffle 11 and the second baffle 13 to fix and clamp the first baffle 11, the wire guide body 12 and the second baffle 13;

[0039] The clamping and fixing block 14 is disposed on the upper front end of the first baffle 11, the wire guide body 12 and the second baffle 13;

[0040] The gap between the outer edge of the wire guide body 12 and the first baffle 11 and the second baffle 13 constitutes the wire rope groove 16;

[0041] The adjusting component groove 121 is provided at the bottom of the wire guide body 12, and the top of the adjusting component groove 121 is connected to the rear end of the multi-point telescopic curvature adjusting component 2;

[0042] A first long strip through groove 111 is provided on the first baffle 11 at a position corresponding to the adjustment component groove 121;

[0043] A second long strip through slot 131 is provided on the second baffle plate 13 at a position corresponding to the groove of the adjustment component;

[0044] The first elongated through slot 111 , the adjustment component groove 121 , and the second elongated through slot 131 together constitute the adjustment component installation groove 16 .

[0045] In the above-mentioned wire guide assembly, the bottom outer edge of the wire guide body 12 is curved.

[0046] In the above-mentioned wire guide plate assembly, the clamping and fixing block 14 is provided with a through hole for clamping and fixing the end of the wire rope.

[0047] In the above-mentioned adjustable wire guide, the multi-point telescopic curvature adjustment component 2 includes:

[0048] At least three sets of telescopic adjustment components are arranged in parallel and at intervals, and each telescopic adjustment component has the same structure, and all include:

[0049] Adjust the stud 22, the floating block 23 and the locking nut 21; wherein,

[0050] The rear end of the adjustment stud 22 is connected to the top of the adjustment assembly mounting groove 16 via the locking nut 21;

[0051] The front end of the adjusting stud 22 is movably connected to the floating block 23, and can be telescopically adjusted to adjust the supporting position of the floating block 23;

[0052] The top end of the adjusting stud 22 connected to the floating block 23 is an arc surface, which is arranged in the connecting groove of the floating block 23. The contact surface of the connecting groove with the arc surface of the adjusting stud 22 is a plane, which can ensure that the floating block 23 can play a floating role at the front end of the adjusting stud 22. Specifically, the arc surface at the front end of the adjusting stud 22 is pressed tightly against the internal plane of the floating block 23, so that the floating block 23 is synchronized with the wire rope within a certain range without holding back.

[0053] In the above-mentioned multi-point telescopic curvature adjustment assembly 2, the supporting end of the floating block 23 is arc-shaped.

[0054] In the above-mentioned multi-point telescopic curvature adjustment assembly 2 , the thickness of the floating block 23 is smaller than the width of the wire rope groove 16 of the wire guide plate assembly 1 .

[0055] Preferably, the multi-point telescopic curvature adjustment component 2 is provided with four or more sets of telescopic adjustment components, which can better ensure the smoothness of the curve.

[0056] In summary, it can be seen that the embodiment of the present invention, by setting a multi-point telescopic curvature adjustment component, utilizes the telescopic ends at the front end of the multi-point telescopic curvature adjustment component to adjust the curvature of the wire rope supported in the wire rope groove, that is, adjust the wire guide curve. If the static force increases, the bolt is shortened; if the static force decreases, the bolt is lengthened, thereby quickly meeting the pantograph static curve tolerance requirement, and facilitating the deriving of the correct wire guide curve. Since there is no need for disassembly and assembly and repeated debugging, the trial production work can be completed in one time, thus saving a lot of manpower and material resources, greatly shortening the research and development time of the pantograph, improving efficiency, facilitating the winning of market opportunities, and having promotion significance.

[0057] In order to more clearly demonstrate the technical solution and technical effects provided by the present invention, the adjustable wire guide plate provided by the embodiment of the present invention is described in detail with reference to a specific embodiment below.

[0058] Example 1

[0059] like Figures 1 to 3 As shown, the embodiment of the present invention provides an adjustable wire guide plate, which can adjust the wire guide plate curve by extending and shortening the bolt to drive the floating block in contact with the wire rope. If the static force increases, the bolt is shortened, and if the static force decreases, the bolt is lengthened, so that the static curve tolerance requirements of the pantograph are quickly met, and the trial production work is completed at one time, saving a lot of manpower and material resources, and greatly shortening the research and development time of the pantograph.

[0060] like Figure 4 and Figure 5 As shown, the principle of adjusting the bow head contact force of the adjustable wire guide is:

[0061] The position where the adjustable wire guide plate 10 is installed on the pantograph is as follows: Figure 4 As shown, it is fixed on the rotating shaft of the lower arm, one end of the steel wire rope 50 on the driving spring 20 is fixed on the steel wire rope groove of the adjustable wire guide plate, and the steel wire rope 50 is connected to the driving spring 20 along the arc of the adjustable wire guide plate 10 and the arc surface of the floating block 22. Under the action of the spring force, the steel wire rope pulls the adjustable wire guide plate to rotate the lower arm 40, driving the upper arm and the bow head to rise, and the carbon slide plate 30 contacts the high-voltage network line to receive current. In order to ensure that the contact force within the working height range of the pantograph is consistent, the different pulling forces at each point on the arc curve of the adjustable wire guide plate 10 are used to compensate for the different contact forces between the carbon slide plate 30 and the network line at each working height, so that the contact force between the pantograph and the network meets the national standard requirements.

[0062] like Figure 5 and Figure 6 As shown, the adjustment method of the adjustable wire guide plate 10 is:

[0063] Place the pantograph on the static curve test equipment, connect the chassis to the equipment base, and complete the pantograph lifting process under the action of the cylinder wind pressure and spring. The equipment will display the static pressure (contact force) of the carbon slide plate at each height of the pantograph.

[0064] When the pressure at a certain point is greater than the tolerance requirement, the adjustment stud 22 at the corresponding point on the rotary adjustment wire guide 10 is shortened; when the pressure at a certain point is less than the tolerance requirement, the adjustment stud 22 at the corresponding point on the rotary adjustment wire guide 10 is extended; each time the pressure is adjusted, the static pressure of the carbon slide plate 30 is re-tested to make the pressure at the point within the tolerance. Similarly, the contact force at each point in the entire working height range is adjusted according to the above method until the entire working range meets the requirements; one circle of contraction and extension is a pitch of 1.5mm, which can be quantified.

[0065] When the static curve meets the requirements, the locking nut 21 is tightened to ensure that the adjustable wire guide plate 10 maintains the correct curve fixation.

[0066] The arc where each floating block 22 contacts the wire rope 50 is drawn on one side of the second baffle plate 13 using a stylus.

[0067] Remove the drive spring 20 and the adjustable wire guide, connect the high points of each arc on one side of the second baffle 13, and then connect them with the tangent lines of the head and tail arcs to obtain a curve of the wire guide that meets the requirements.

[0068] According to this curve, a fixed curve is made to meet the required wire guide.

[0069] like Figure 6 As shown, the structural principle of the adjustment tool adjustment type wire guide 10 is:

[0070] One end of the adjusting stud 22 is fixed on the wire guide body 12, and the other end is connected to the floating block 23. The floating block 23 and the adjusting stud 22 are arc surface floating supports, ensuring that the arc surface of the floating block 23 has the maximum contact surface along the contact surface of the wire rope 50 after each adjustment.

[0071] By rotating the adjustment stud 22, the floating block 23 moves up and down, driving the steel wire rope 50 on the floating block 23 to move, thereby adjusting the tension of the steel wire rope 50 at that point.

[0072] Four adjustment studs 22 are set on the wire guide body 12, which can adjust the force points of the wire rope at the four supporting points. Here, more or fewer adjustment supporting points can be set according to the length of the wire guide.

[0073] The first baffle 11 and the second baffle 13 sandwich the wire guide body 12 in the middle, and the three are fixedly connected by the clamping block 14 and two clamping bolts at three points, so as to prevent the steel wire rope from falling off on the wire guide curve and also play a role in guiding the floating block 23 in a straight line.

[0074] The locking nut 21 is used to lock the adjusting stud 22 when the adjustment force meets the static curve requirements, and the arc of the floating block 23 is drawn on the side of the second baffle 13. Remove the first baffle 11 of the adjustable wire guide, and connect the high points of the arc on one side of the second baffle 13, which is the curve of the fixed wire guide.

[0075] The thickness of the floating block 23 is 0.1 mm less than the inner dimension of the two baffles (i.e., the first and second baffles 11 and 13) assembled, ensuring that the floating block 23 can only move but not rotate. The bottom of the floating block is arc-shaped, which not only plays a floating role, but also makes the contact area of ​​the wire rope large, ensuring a certain curved contact surface of the wire rope.

[0076] Preferably, the adjustment studs 22 are all M10 adjustment studs, which can conveniently determine the adjustment amount according to the pitch. The adjustment amount can also be determined more intuitively by setting a scale in coordination with the mark on the adjustment stud.

[0077] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims. The information disclosed in the background technology section of this article is only intended to deepen the understanding of the overall background technology of the present invention, and should not be regarded as an admission or in any form that the information constitutes prior art known to those skilled in the art.

Claims

1. An adjustable wire guide plate, characterized in that: include: A wire guide plate assembly (1) and a multi-point telescopic curvature adjustment assembly (2); wherein: A wire rope groove (16) is provided on the outer edge of the wire guide assembly (1), and the wire rope groove (16) extends from the upper front end of the wire guide assembly (1) to the bottom of the wire guide assembly (1); The bottom of the wire guide assembly (1) is provided with an adjustment assembly installation groove (15), and the adjustment assembly installation groove (15) is communicated with the wire rope groove (16) at the bottom of the wire guide assembly (1); The multi-point telescopic curvature adjustment component (2) is arranged in the adjustment component installation groove, the rear end of the multi-point telescopic curvature adjustment component is connected to the top of the adjustment component installation groove, and each telescopic end of the front end of the multi-point telescopic curvature adjustment component (2) extends into the wire rope groove (16), and can telescopically support and adjust the curvature of the wire rope arranged in the wire rope groove (16); The wire guide assembly comprises: a wire guide body (12), a first baffle (11), a second baffle (13), a clamping fixing block (14) and two clamping bolts; wherein: The first baffle (11) and the second baffle (13) are arranged on both sides of the wire guide body (12) to clamp the wire guide body (12); the clamping fixing block (14) and two clamping bolts are arranged at intervals on the upper ends of the first baffle (11) and the second baffle (13) to fix and clamp the first baffle (11), the wire guide body (12) and the second baffle (13); The clamping and fixing block (14) is arranged on the upper front end of the first baffle (11), the wire guide plate body (12) and the second baffle (13); The gap between the outer edge of the wire guide plate body (12) and the first baffle plate (11) and the second baffle plate (13) forms the wire rope groove (16); The multi-point telescopic curvature adjustment component (2) comprises: at least three groups of telescopic adjustment components arranged in parallel and at intervals, each of which has the same structure and comprises: The adjusting stud (22), the floating block (23) and the locking nut (21); wherein, The rear end of the adjustment stud (22) is connected to the top of the adjustment component mounting groove (16) via the locking nut (21); The front end of the adjusting stud (22) is movably connected to the floating block (23) and can adjust the supporting position of the floating block (23) by telescoping; The top end of the adjusting stud (22) connected to the floating block (23) is an arc surface, which is arranged in a connecting groove of the floating block (23), and the contact surface of the connecting groove with the arc surface of the adjusting stud (22) is a plane; The supporting end of the floating block (23) is arc-shaped.

2. The adjustable wire guide according to claim 1, characterized in that An adjustment component groove (121) is provided at the bottom of the wire guide plate body (12), and the top of the adjustment component groove (121) is connected to the rear end of the multi-point telescopic curvature adjustment component (2); A first long strip through groove (111) is provided on the first baffle (11) at a position corresponding to the adjustment component groove (121); A second long strip through groove (131) is provided on the second baffle (13) at a position corresponding to the groove of the adjustment component; The first elongated through slot (111), the adjustment component groove (121) and the second elongated through slot (131) together constitute the adjustment component installation groove (16).

3. The adjustable wire guide according to claim 1, characterized in that The bottom outer edge of the wire guide body (12) is in a curved shape.

4. The adjustable wire guide according to claim 1, characterized in that The clamping and fixing block (14) is provided with a through hole for clamping and fixing the end of the steel wire rope.

5. The adjustable wire guide according to claim 1, characterized in that: The thickness of the floating block (23) is smaller than the width of the wire rope groove (16) of the wire guide assembly (1).

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