Width-variable circulating circle of high-power hydraulic torque converter

Abstract

The utility model relates to a circulating circle, and aims to solve the technical problems that the maximum width of the existing circulating circle is limited by the diameter of a first section of arc of an outer ring and the major diameter of the circulating circle, once the maximum diameter of the circulating circle is determined, the width limit of the circulating circle is determined, and expansion in the width direction cannot be carried out. According to the widening circulating circle of the high-power hydraulic torque converter, an outer circulation line comprises a first outer circulation line and a second outer circulation line which are symmetrically distributed about the radial axis of the circulating circle; the first outer circulation line comprises a straight line, a first outer circulation line arc, a second outer circulation line arc and a third outer circulation line arc which are sequentially and smoothly connected in the clockwise direction; the straight line is parallel to the central axis of the torque converter rotating shaft; the inner circulation line comprises a first inner circulation line and a second inner circulation line which are symmetrically distributed about the radial axis of the circulation circle, and the first inner circulation line comprises a first inner circulation line arc, a second inner circulation line arc and a third inner circulation line arc which are sequentially and smoothly connected in the clockwise direction.

Description

Technical Field

[0001] The utility model relates to a circulation circle, in particular to a widening circulation circle of a high-power hydraulic torque converter. Background Art

[0002] The torque converter uses fluid interaction to transfer power from the engine output shaft to the transmission. The torque converter is mainly composed of a pump wheel, a turbine wheel and a guide wheel. The torque converter uses fluid as the transmission medium and acts as a torque multiplication device; the fluid interaction within the torque converter is achieved by the pump wheel pumping the fluid into the turbine, which absorbs the energy and deflects it in the opposite direction of the guide wheel. The guide wheel produces a torque multiplication effect by directing the fluid back to the pump wheel.

[0003] During the application of the torque converter, the circulation circle size, blade area ratio and blade inlet and outlet angles will affect the performance of the torque converter; usually the torque converter performance can be improved by adjusting the blade area ratio and the blade inlet and outlet angles; if you want to obtain a larger energy capacity, you need to start by improving the torque converter circulation circle.

[0004] The Chinese patent document with the publication number CN201288804Y discloses a circulation circle of an automobile hydraulic torque converter, which is composed of a pump wheel assembly, a turbine assembly and a guide wheel assembly. The pump wheel outer ring of the pump wheel assembly and the turbine outer ring of the turbine assembly are both set to an asymmetric oblate circle, and the width of the asymmetric oblate circle circulation circle is 54.67 mm, the height is 63.43 mm, and the flattening rate is 0.86; the asymmetric oblate circle of the pump wheel outer ring is composed of four sections of circular arcs with different radii tangent to each other, and the radius ratio of the four sections of circular arcs is 1.42:1.78:0.94:1; the asymmetric oblate circle of the turbine outer ring is composed of three sections of circular arcs with different radii tangent to each other, and the radius ratio of the three sections of circular arcs is 0.77:1.65:1. In this scheme, the maximum width of the circulation circle is limited by the diameter of the first section of the outer ring and the major diameter of the circulation circle. Once the maximum diameter of the circulation circle is determined, the width limit of the circulation circle is determined, and it is impossible to expand in the width direction, and thus it is impossible to further increase the energy capacity. Utility Model Content

[0005] The purpose of the utility model is to solve the technical problem that the maximum width of the existing circulation circle is limited by the diameter of the first arc section of the outer ring and the major diameter of the circulation circle. Once the maximum diameter of the circulation circle is determined, the width limit of the circulation circle is determined and the width direction cannot be expanded. A high-power hydraulic torque converter widened circulation circle is provided to solve the technical problem that the maximum width of the circulation circle is limited by the diameter of the first arc section of the outer ring and the major diameter of the circulation circle.

[0006] In order to solve the above technical problems, the technical solutions provided by the utility model are as follows:

[0007] A widening circulation circle of a high-power hydraulic torque converter comprises an outer circulation circle and an inner circulation circle; the outer circulation circle is formed by the outer circulation streamline rotating around the torque converter rotation axis; the inner circulation circle is formed by the inner circulation streamline rotating around the torque converter rotation axis; the special features of the invention are:

[0008] The outer ring streamlines include a first outer ring streamline and a second outer ring streamline that are symmetrically distributed about the radial axis of the circulation circle, wherein the first outer ring streamline includes a straight line, a first outer ring streamline arc, a second outer ring streamline arc, and a third outer ring streamline arc that are smoothly connected in sequence in a clockwise direction;

[0009] The straight line is parallel to the central axis of the torque converter rotating shaft;

[0010] The inner circulation streamlines include a first inner circulation streamline and a second inner circulation streamline symmetrically distributed about a radial axis of a circulation circle, and the first inner circulation streamline includes a first inner circulation streamline arc, a second inner circulation streamline arc and a third inner circulation streamline arc which are smoothly connected in sequence along a clockwise direction.

[0011] Furthermore, the center angles of the first outer ring streamline arc, the second outer ring streamline arc and the third outer ring streamline arc are 61.3°, 90° and 22.62° respectively.

[0012] Furthermore, the center angles of the first inner circular streamline arc, the second inner circular streamline arc and the third inner circular streamline arc are 97°, 54.46° and 28.54° respectively.

[0013] Further, it is defined that: a coordinate system is established with the central axis of the torque converter rotating shaft and the radial axis of the circulation circle as coordinate axes, and the intersection of the central axis of the torque converter rotating shaft and the radial axis of the circulation circle is taken as a circle point;

[0014] The starting point coordinate and the end point coordinate of the straight line are (0,220mm) and (7,220mm) respectively;

[0015] The starting point coordinates and the end point coordinates of the first outer ring streamline arc are (7, 220 mm) and (65.15 mm, 181.23 mm) respectively;

[0016] The starting point coordinates and the end point coordinates of the second outer ring streamline arc are (65.15mm, 181.23mm) and (32.3mm, 101.46mm) respectively;

[0017] The starting point coordinates and the end point coordinates of the third outer ring streamline arc are (32.3mm, 101.46mm) and (0, 95mm) respectively;

[0018] The center coordinates of the first outer ring streamline arc are is (7,157mm), the arc radius R1 is 63mm, and the center coordinates of the second outer ring streamline arc are is (8.85mm, 157.77mm), the arc radius R2 is 61mm; the center coordinates of the third outer ring streamline arc is (0,179mm), and the arc radius R3 is 84mm.

[0019] Furthermore, the starting point coordinates and the ending point coordinates of the first inner ring streamline arc are (0, 192.9 mm) and (32.27, 158.21 mm) respectively;

[0020] The starting point coordinates and the end point coordinates of the second inner ring streamline arc are (32.27, 158.21 mm) and (32.3 mm, 101.46 mm) respectively;

[0021] The starting point coordinates and the end point coordinates of the third inner ring streamline arc are (21.97mm, 143.09mm) and (0, 137.5mm) respectively;

[0022] The center coordinates of the first inner streamline arc are is (1.5mm, 162mm), the arc radius r1 is 31mm, and the center coordinates of the second inner ring streamline arc are is (12.4mm, 160.66mm), the arc radius r2 is 20mm, and the center coordinates of the third inner ring streamline arc are It is (0,183.5mm) and the arc radius r3 is 46mm.

[0023] Furthermore, a maximum distance between a tangent line of the first outer circulation streamline and a tangent line of the second outer circulation streamline is 139.7 mm.

[0024] Compared with the prior art, the utility model has the following beneficial effects:

[0025] The utility model provides a high-power hydraulic torque converter with a widened circulation circle, in which the first outer circulation streamline is arranged as a straight line, a first outer circulation streamline arc, a second outer circulation streamline arc and a third outer circulation streamline arc which are smoothly connected in sequence. When the maximum diameter of the circulation circle has been determined, by translating the first outer circulation streamline arc outward and introducing a straight line connected to the first outer circulation streamline arc, the width of the circulation circle can be widened without increasing the major diameter of the circulation circle, thereby further improving the energy capacity of the torque converter. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the structure of the embodiment of the utility model Figure 1 ;

[0027] Figure 2This is a schematic diagram of the structure of the embodiment of the utility model Figure 2 .

[0028] Explanation of the figure marks: 1-outer ring streamline, 11-first outer ring streamline, 111-straight line, 112-first outer ring streamline arc, 113-second outer ring streamline arc, 114-third outer ring streamline arc, 12-second outer ring streamline, 2-inner ring streamline, 21-first inner ring streamline, 211-first inner ring streamline arc, 212-second inner ring streamline arc, 213-third inner ring streamline arc, 22-second inner ring streamline, 3-circular radial axis, 4-torque converter rotating shaft. DETAILED DESCRIPTION

[0029] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] like Figure 1 and Figure 2 As shown, a widened circulation circle of a high-power hydraulic torque converter includes an outer circulation circle and an inner circulation circle; the outer circulation circle is formed by the outer circulation streamline 1 rotating around the torque converter rotating shaft 4; the inner circulation circle is formed by the inner circulation streamline 2 rotating around the torque converter rotating shaft 4.

[0031] like Figure 1 and Figure 2 As shown, the outer loop streamline 1 includes a first outer loop streamline 11 and a second outer loop streamline 12 symmetrically distributed about the radial axis 3 of the circulation circle, and the first outer loop streamline 11 includes a straight line 111, a first outer loop streamline arc 112, a second outer loop streamline arc 113 and a third outer loop streamline arc 114 which are smoothly connected in the clockwise direction; the second outer loop streamline 12 has the same structure as the first outer loop streamline 11. When the maximum diameter of the circulation circle has been determined, by translating the first outer loop streamline arc 112 outward and introducing a straight line 111 connected to the first outer loop streamline arc 112, the width of the circulation circle can be widened without increasing the major diameter of the circulation circle, so that the energy capacity of the torque converter can be further improved.

[0032] like Figure 1 As shown, the straight line 111 is parallel to the central axis of the torque converter rotating shaft 4; the central angles of the first outer ring streamline arc 112, the second outer ring streamline arc 113 and the third outer ring streamline arc 114 are 61.3°, 90° and 22.62° respectively.

[0033] like Figure 1 and Figure 2As shown, the inner circulation streamline 2 includes a first inner circulation streamline 21 and a second inner circulation streamline 22 which are symmetrically distributed about the radial axis 3 of the circulation circle. The first inner circulation streamline 21 includes a first inner circulation streamline arc 211, a second inner circulation streamline arc 212 and a third inner circulation streamline arc 213 which are smoothly connected in sequence in a clockwise direction. The second inner circulation streamline 22 has the same structure as the first inner circulation streamline 21.

[0034] like Figure 2 As shown, the central angles of the first inner circular streamline arc 211, the second inner circular streamline arc 212 and the third inner circular streamline arc 213 are 97°, 54.46° and 28.54° respectively.

[0035] like Figure 1 and Figure 2 As shown, the definition is: a coordinate system is established with the central axis of the torque converter rotating shaft 4 and the radial axis 3 of the circulating circle as coordinate axes, and the intersection of the central axis of the torque converter rotating shaft 4 and the radial axis 3 of the circulating circle is taken as the circle point.

[0036] The starting point coordinate and the end point coordinate of the straight line 111 are (0,220 mm) and (7,220 mm) respectively;

[0037] The starting point coordinates and the end point coordinates of the first outer ring streamline arc 112 are (7, 220 mm) and (65.15 mm, 181.23 mm) respectively;

[0038] The starting point coordinates and the end point coordinates of the second outer ring streamline arc 113 are (65.15 mm, 181.23 mm) and (32.3 mm, 101.46 mm) respectively;

[0039] The starting point coordinates and the end point coordinates of the third outer ring streamline arc 114 are (32.3mm, 101.46mm) and (0, 95mm) respectively;

[0040] The starting point coordinates and the end point coordinates of the first inner streamline arc 211 are (0, 192.9 mm) and (32.27, 158.21 mm) respectively;

[0041] The starting point coordinates and the end point coordinates of the second inner streamline arc 212 are (32.27, 158.21 mm) and (32.3 mm, 101.46 mm) respectively;

[0042] The starting point coordinates and the end point coordinates of the third inner streamline arc 213 are (21.97 mm, 143.09 mm) and (0, 137.5 mm) respectively;

[0043] The center coordinates of the first outer ring streamline arc 112 is (7,157mm), the arc radius R1 is 63mm, and the center coordinates of the second outer ring streamline arc 113 are is (8.85mm, 157.77mm), the arc radius R2 is 61mm; the center coordinates of the third outer ring streamline arc 114 are is (0,179mm), the arc radius R3 is 84mm;

[0044] The center coordinates of the first inner streamline arc 211 is (1.5mm, 162mm), the arc radius r1 is 31mm, and the center coordinates of the second inner ring streamline arc 212 are is (12.4mm, 160.66mm), the arc radius r2 is 20mm, and the center coordinates of the third inner ring streamline arc 213 are It is (0,183.5mm) and the arc radius r3 is 46mm.

[0045] like Figure 1 and Figure 2 As shown, the maximum distance between the tangent line of the first outer circulation line 11 and the tangent line of the second outer circulation line 12 is 139.7 mm.

[0046] The maximum nominal torque of the circulation circle obtained in this embodiment is 1021.2Nm. Without increasing the major diameter of the circulation circle, the maximum nominal torque of the circulation circle is increased by 4.2% compared with the existing commonly used circulation circle (the existing commonly used circulation circle dimensions: major diameter is 440mm, minor diameter is 182.9mm, width is 135.7mm, and maximum nominal torque is 978.6Nm).

[0047] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or replacements within the technical scope disclosed in the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope recorded in the claims.

Claims

1. A widening circulation circle of a high-power hydraulic torque converter, comprising an outer circulation circle ring and an inner circulation circle ring; the outer circulation circle ring is formed by the outer circulation streamline (1) rotating around the torque converter rotation axis (4); the inner circulation circle ring is formed by the inner circulation streamline (2) rotating around the torque converter rotation axis (4); the characteristics are: The outer circulation streamline (1) comprises a first outer circulation streamline (11) and a second outer circulation streamline (12) symmetrically distributed about a radial axis (3) of the circulation circle, wherein the first outer circulation streamline (11) comprises a straight line (111), a first outer circulation streamline circular arc (112), a second outer circulation streamline circular arc (113) and a third outer circulation streamline circular arc (114) which are smoothly connected in sequence in a clockwise direction; The straight line (111) is parallel to the central axis of the torque converter rotating shaft (4); The inner circulation streamline (2) comprises a first inner circulation streamline (21) and a second inner circulation streamline (22) which are symmetrically distributed about a radial axis (3) of a circulation circle, wherein the first inner circulation streamline (21) comprises a first inner circulation streamline arc (211), a second inner circulation streamline arc (212) and a third inner circulation streamline arc (213) which are smoothly connected in sequence in a clockwise direction.

2. The high-power hydraulic torque converter widening circulation circle according to claim 1 is characterized in that: The central angles corresponding to the first outer ring streamline arc (112), the second outer ring streamline arc (113) and the third outer ring streamline arc (114) are 61.3°, 90° and 22.62° respectively.

3. The variable-width circulation circle of a high-power hydraulic torque converter according to claim 1 is characterized in that: The central angles corresponding to the first inner circular streamline arc (211), the second inner circular streamline arc (212) and the third inner circular streamline arc (213) are 97°, 54.46° and 28.54° respectively.

4. The high-power hydraulic torque converter widening circulation circle according to claim 1 is characterized in that: Definition: A coordinate system is established with the central axis of the torque converter rotating shaft (4) and the radial axis of the circulation circle (3) as coordinate axes, and the intersection of the central axis of the torque converter rotating shaft (4) and the radial axis of the circulation circle (3) is taken as a circle point; The starting point coordinate and the end point coordinate of the straight line (111) are (0, 220 mm) and (7, 220 mm) respectively; The starting point coordinates and the end point coordinates of the first outer ring streamline arc (112) are (7, 220 mm) and (65.15 mm, 181.23 mm) respectively; The starting point coordinates and the end point coordinates of the second outer ring streamline arc (113) are respectively (65.15 mm, 181.23 mm) and (32.3 mm, 101.46 mm); The starting point coordinates and the end point coordinates of the third outer ring streamline arc (114) are (32.3 mm, 101.46 mm) and (0, 95 mm) respectively; The center coordinates of the first outer streamline arc (112) are is (7,157mm), the arc radius R1 is 63mm, and the center coordinates of the second outer ring streamline arc (113) are is (8.85mm, 157.77mm), the arc radius R2 is 61mm; the center coordinates of the third outer ring streamline arc (114) are is (0,179mm), and the arc radius R3 is 84mm.

5. The high-power hydraulic torque converter widening circulation circle according to claim 4 is characterized in that: The starting point coordinates and the end point coordinates of the first inner streamline arc (211) are respectively (0, 192.9 mm) and (32.27, 158.21 mm); The starting point coordinates and the end point coordinates of the second inner streamline arc (212) are respectively (32.27, 158.21 mm) and (32.3 mm, 101.46 mm); The starting point coordinates and the end point coordinates of the third inner circular streamline arc (213) are respectively (21.97 mm, 143.09 mm) and (0, 137.5 mm); The center coordinates of the first inner streamline arc (211) are is (1.5mm, 162mm), the arc radius r1 is 31mm, and the center coordinates of the second inner ring streamline arc (212) are is (12.4mm, 160.66mm), the arc radius r2 is 20mm, and the center coordinates of the third inner ring streamline arc (213) are It is (0,183.5mm) and the arc radius r3 is 46mm.

6. The high-power hydraulic torque converter widening circulation circle according to claim 1 is characterized in that: The maximum distance between the tangent line of the first outer circulation streamline (11) and the tangent line of the second outer circulation streamline (12) is 139.7 mm.

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