具体实施方式

本说明书中公开的所有特征，或公开的所有方法或过程中的步骤，除了互相排斥的特征和/或步骤以外，均可以以任何方式组合。

本说明书中公开的任一特征，除非特别叙述，均可被其它等效或具有类似目的的替代特征加以替换。即，除非特别叙述，每个特征只是一系列等效或类似特征中的一个例子而己。在整个说明书中，同样的附图标记指示同样的元件。

为使本实用新型解决的技术问题、采用的技术方案和达到的技术效果更加清楚，下面结合附图并通过具体实施方式来进一步说明本实用新型的技术方案。

本实施例中，提出了一种测量液力缓速器的油流量的工装，其安装在车辆的热交换器与液力缓速器的后壳体之间，热交换器用于对液力缓速器的油液进行热交换，测量液力缓速器的油流量的工装用于测量液力缓速器的工作腔内的油流量，其具有结构简单、测量方便以及成本较低的特点。其中，由于液力缓速器的工作腔内的油流量与液力缓速器流至热交换器的油流量相同，即测量由液力缓速器流至热交换器的油流量即可得到液力缓速器的工作腔内的油流量。其中，整个测量液力缓速器的油流量的工装的厚度与试验台架的空间尺寸相匹配。本实施例中，液力缓速器为现有技术中常见的液力缓速器，因此，此处不再对液力缓速器的具体结构以及工作原理进行详细赘述。

具体地，如图1和图2所示，测量液力缓速器的油流量的工装包括安装体1；在安装体1上形成有背对设置的第一安装面11及第二安装面12，第一安装面11用于定位至热交换器，第二安装面12用于定位至后壳体，在安装体1上设置有贯穿第一安装面11及第二安装面12的通油孔14，通油孔14与后壳体上的油液孔同轴设置，且通油孔14的直径与油液孔的直径相同，在通油孔14的内壁上设置有用于安装流量传感器的安装孔15，流量传感器用于测量流经通油孔14的油流量。其中，安装孔15的尺寸与流量传感器的型号相匹配。本实施例中，流量传感器通过螺栓安装至安装孔15内。

通过将第一安装面11定位至热交换器，第二安装面12定位至后壳体，且在安装体1上设置贯穿第一安装面11及第二安装面12的通油孔14，使通油孔14与后壳体上的油液孔同轴设置且直径相同，能够使液力缓速器进出热交换器的油液全部无阻碍流经通油孔14，以使通油孔14的油流量与液力缓速器进出热交换器的油流量相同；同时在通油孔14的内壁上设置用于安装流量传感器的安装孔15，以通过流量传感器测量流经通油孔14内的油流量，而由于通油孔14内的油流量与液力缓速器进出热交换器的油流量相同，且液力缓速器进出热交换器的油流量与液力缓速器的工作腔内的油流量相同，即在通油孔14内通过流量传感器测量出的油流量可直接等效为液力缓速器的工作腔内的油流量，从而能够准确地测量出液力缓速器的工作腔内的油流量；且整个测量液力缓速器的油流量的工装的结构简单，不会额外增加生产成本；同时，由于流量传感器直接设置在通油孔14的内壁，以测量流经通油孔14的油流量，其采用高精度的接触式流量传感器即可，避免了使用价格较为昂贵的非接触式的流量传感器，从而使成本较低。

进一步地，如图1所示，在第一安装面11上设置有环形凹槽13，环形凹槽13用于与热交换器上的环形凸台配合使用，以将第一安装面11定位至热交换器；环形凹槽13环设在通油孔14的外周，且环形凹槽13与通油孔14同轴，以保证通油孔14与热交换器之间的安装精度；在环形凹槽13与环形凸台之间设置有第一密封件，以使环形凹槽13与环形凸台之间能够形成端面密封，从而避免油液从环形凹槽13与环形凸台之间流出，以确保油液不会发生泄漏，使油液仅仅只能从通油孔14内流动。本实施例中，第一密封件为密封圈。

具体而言，如图2所示，在第二安装面12上形成有环形定位面17，环形定位面17用于与油液孔配合使用，以将第二安装面12定位至后壳体；环形定位面17环设在通油孔14的外周，环形定位面17与通油孔14同轴，以保证通油孔14与后壳体之间的安装精度；且在环形定位面17与油液孔之间设置有第二密封件，以使环形定位面17与油液孔之间能够形成端面密封，从而避免油液从环形定位面17与油液孔之间流出，以确保油液不会发生泄漏，使油液仅仅只能从通油孔14内流动。本实施例中，第二密封件为密封圈。

进一步地，安装体1通过紧固件固定至后壳体及热交换器；其中，如图1和图2所示，在安装体1上设置有多个固定通孔16，固定通孔16用于紧固件的穿过，以将安装体1固定至后壳体及热交换器，从而将整个测量液力缓速器的油流量的工装固定在后壳体与热交换器之间。

本实施例中，固定通孔16的数量设置有两个，两个固定通孔16均用于紧固件的穿过，紧固件依次穿过热交换器上的第一螺纹孔、固定通孔16以及后壳体上的第二螺纹孔，并拧紧固定，以将安装体1固定安装在热交换器与后壳体之间。本实施例中，紧固件为螺栓。

进一步地，在第一安装面11及第二安装面12上均设置有减重槽18，即通过对安装体1进行减重处理，从而在第一安装面11及第二安装面12上形成减重槽18，以能够减轻整个液力缓速器的油流量的工装的重量。

以上内容仅为本实用新型的较佳实施例，对于本领域的普通技术人员，依据本实用新型的思想，在具体实施方式及应用范围上均会有改变之处，本说明书内容不应理解为对本实用新型的限制。

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.

Any feature disclosed in this specification may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features. Like reference numerals refer to like elements throughout the specification.

In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the technical solution of the present invention will be further explained by combining the drawings and by means of the specific implementation manner.

In the embodiment, the tool for measuring the oil flow of the hydraulic retarder is provided, and is installed between a heat exchanger of a vehicle and a rear shell of the hydraulic retarder, wherein the heat exchanger is used for carrying out heat exchange on oil of the hydraulic retarder, and the tool for measuring the oil flow of the hydraulic retarder is used for measuring the oil flow in a working cavity of the hydraulic retarder. The oil flow in the working cavity of the hydraulic retarder is the same as the oil flow from the hydraulic retarder to the heat exchanger, namely the oil flow in the working cavity of the hydraulic retarder can be obtained by measuring the oil flow from the hydraulic retarder to the heat exchanger. The thickness of the whole tool for measuring the oil flow of the hydraulic retarder is matched with the space size of the test bed. In this embodiment, the hydraulic retarder is a common hydraulic retarder in the prior art, and therefore, the specific structure and the working principle of the hydraulic retarder are not described in detail herein.

Specifically, as shown in fig. 1 and fig. 2, the tool for measuring the oil flow of the hydraulic retarder includes an installation body 1; the mounting body 1 is provided with a first mounting surface 11 and a second mounting surface 12 which are oppositely arranged, the first mounting surface 11 is used for being positioned to the heat exchanger, the second mounting surface 12 is used for being positioned to the rear shell, the mounting body 1 is provided with an oil through hole 14 penetrating through the first mounting surface 11 and the second mounting surface 12, the oil through hole 14 is coaxially arranged with an oil liquid hole in the rear shell, the diameter of the oil through hole 14 is the same as that of the oil liquid hole, the inner wall of the oil through hole 14 is provided with a mounting hole 15 used for mounting a flow sensor, and the flow sensor is used for measuring the flow of oil flowing through the oil through hole 14. Wherein the size of the mounting hole 15 matches the model of the flow sensor. In the present embodiment, the flow sensor is mounted in the mounting hole 15 by a bolt.

By positioning the first mounting surface 11 to the heat exchanger, positioning the second mounting surface 12 to the rear shell, and arranging the oil through hole 14 penetrating through the first mounting surface 11 and the second mounting surface 12 on the mounting body 1, the oil through hole 14 and an oil hole on the rear shell are coaxially arranged and have the same diameter, so that oil entering and exiting the heat exchanger of the hydrodynamic retarder can completely flow through the oil through hole 14 without obstruction, and the oil flow of the oil through hole 14 is the same as the oil flow of the hydrodynamic retarder entering and exiting the heat exchanger; meanwhile, the inner wall of the oil through hole 14 is provided with a mounting hole 15 for mounting a flow sensor, so that the flow of oil flowing through the oil through hole 14 is measured by the flow sensor, and the oil flow in the oil through hole 14 is the same as the oil flow of the hydraulic retarder in and out of the heat exchanger, and the oil flow of the hydraulic retarder in and out of the heat exchanger is the same as the oil flow in the working cavity of the hydraulic retarder, namely the oil flow measured by the flow sensor in the oil through hole 14 can be directly equivalent to the oil flow in the working cavity of the hydraulic retarder, so that the oil flow in the working cavity of the hydraulic retarder can be accurately measured; the whole tool for measuring the oil flow of the hydraulic retarder is simple in structure, and the production cost cannot be increased additionally; meanwhile, the flow sensor is directly arranged on the inner wall of the oil through hole 14 to measure the oil flow passing through the oil through hole 14, and the high-precision contact type flow sensor is adopted, so that the use of a non-contact type flow sensor with high price is avoided, and the cost is low.

Further, as shown in fig. 1, an annular groove 13 is provided on the first mounting surface 11, and the annular groove 13 is used for cooperating with an annular boss on the heat exchanger to position the first mounting surface 11 to the heat exchanger; the annular groove 13 is annularly arranged on the periphery of the oil through hole 14, and the annular groove 13 is coaxial with the oil through hole 14 so as to ensure the mounting precision between the oil through hole 14 and the heat exchanger; a first sealing element is arranged between the annular groove 13 and the annular boss, so that end face sealing can be formed between the annular groove 13 and the annular boss, oil is prevented from flowing out from the annular groove 13 and the annular boss, leakage of the oil is avoided, and the oil can only flow from the oil through hole 14. In this embodiment, the first sealing element is a sealing ring.

Specifically, as shown in fig. 2, an annular positioning surface 17 is formed on the second mounting surface 12, and the annular positioning surface 17 is used for being matched with an oil hole to position the second mounting surface 12 to the rear shell; the annular positioning surface 17 is annularly arranged on the periphery of the oil through hole 14, and the annular positioning surface 17 is coaxial with the oil through hole 14 so as to ensure the mounting precision between the oil through hole 14 and the rear shell; and a second sealing element is arranged between the annular positioning surface 17 and the oil hole, so that end face sealing can be formed between the annular positioning surface 17 and the oil hole, thereby preventing oil from flowing out from the annular positioning surface 17 and the oil hole, ensuring that the oil cannot leak, and enabling the oil to only flow from the oil through hole 14. In this embodiment, the second sealing element is a sealing ring.

Further, the mounting body 1 is fixed to the rear case and the heat exchanger by fasteners; as shown in fig. 1 and 2, a plurality of fixing through holes 16 are provided on the mounting body 1, and the fixing through holes 16 are used for passing fasteners to fix the mounting body 1 to the rear housing and the heat exchanger, so that the whole tool for measuring the oil flow of the hydrodynamic retarder is fixed between the rear housing and the heat exchanger.

In this embodiment, two fixing through holes 16 are provided, and each of the two fixing through holes 16 is used for passing a fastener, and the fastener passes through the first threaded hole on the heat exchanger, the fixing through hole 16 and the second threaded hole on the rear housing in sequence and is screwed and fixed to fixedly mount the mounting body 1 between the heat exchanger and the rear housing. In this embodiment, the fasteners are bolts.

Furthermore, weight-reducing grooves 18 are formed in both the first mounting surface 11 and the second mounting surface 12, that is, the weight-reducing grooves 18 are formed in the first mounting surface 11 and the second mounting surface 12 by performing weight-reducing treatment on the mounting body 1, so that the weight of the tool for reducing the oil flow of the entire hydrodynamic retarder can be reduced.

The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.