Supporting device

Abstract

The utility model relates to a supporting device which is suitable for a performance test of an engine, the engine comprises two first timing gears located on the upper portion and a second timing gear located below the first timing gears, the timing gears are sequentially connected through chains, and the supporting device comprises two supporting rods, a bearing piece and a mounting assembly. The supporting rod is arranged on the engine; the bearing piece is horizontally arranged on the supporting rod and used for bearing the first timing gear. The mounting assembly is arranged at the bottom end of the supporting rod and used for mounting the supporting rod on the engine. The first timing gear is borne through cooperation of the bearing piece and the supporting rod, the first timing gear does not need to be dismantled from the engine in the bench test of the engine, and therefore timing calibration does not need to be conducted on all the timing gears and chains when the engine needs to be reassembled after the test is finished, and the time calibration efficiency is improved. And the assembly period of the engine is shortened, so that the assembly efficiency of the engine is improved.

Description

Technical Field

[0001] The present application relates to the field of engine technology, and in particular to a supporting device. Background Art

[0002] An engine is a power generating device whose function is to convert other forms of energy into mechanical energy. The engine includes components such as a camshaft, a crankshaft and multiple timing gears. The camshaft is used to control the opening and closing of the valves and adjust the intake and exhaust volumes; the crankshaft is located at the bottom of the engine and is used to convert the linear motion of the piston into rotational motion, thereby driving the vehicle's tires; the timing gear is a gear used to connect the camshaft and the crankshaft, and the timing gears are connected in sequence by chains to transmit power and ensure that the camshaft and crankshaft move synchronously.

[0003] In the related art, in order to evaluate the performance of the engine, the engine needs to be tested on a test bench. During the test, the timing gear and chain need to be disassembled before the relevant performance test is performed. However, when the engine is subsequently reassembled, that is, when the timing gear and chain are reassembled, the timing calibration needs to be re-adjusted, which prolongs the engine assembly cycle and reduces the assembly efficiency. Utility Model Content

[0004] Based on this, it is necessary to provide a support device to address the problem of low assembly efficiency caused by the need to reassemble the timing gear and chain after the engine bench test.

[0005] The present application provides a supporting device suitable for a performance test of an engine, wherein the engine comprises two first timing gears located above and a second timing gear located below the first timing gears, wherein the timing gears are sequentially connected by a chain, and the supporting device comprises:

[0006] two support rods, arranged on the engine;

[0007] A supporting member, horizontally arranged on the supporting rod, and used for receiving the first timing gear;

[0008] The mounting assembly is arranged at the bottom end of the support rod, and the mounting assembly is used to mount the support rod on the engine.

[0009] In one embodiment, the supporting member includes two supporting rods, and one end of the supporting rod away from the support rod is slidingly matched with the hole wall of the center hole of the first timing gear.

[0010] In one of the embodiments, a limiting member is provided on the supporting rod, and the limiting member is used to limit the position of the first timing gear on the supporting rod.

[0011] In one of the embodiments, the limiting member includes a limiting block, which is disposed on the supporting rod, and an end of the limiting block away from the supporting rod is used to press against the side wall of the first timing gear.

[0012] In one embodiment, the engine further comprises a lower cover top plate, the first timing gear is located above the lower cover top plate, the second timing gear is located below the lower cover top plate, and the mounting assembly comprises:

[0013] A support seat, arranged on the top plate of the lower cover, and used for receiving the support rod;

[0014] The fixing piece is used to fix the support seat on the top plate of the lower cover.

[0015] In one embodiment, the support seat includes a first seat and a second seat, the first seat is connected to one of the support rods, and the second seat is connected to the other support rod. The first seat and the second seat are both slidably connected to the top plate of the lower cover, and the sliding directions of the first seat and the second seat are parallel to the direction of the line connecting the center points of the two first timing gears.

[0016] In one embodiment, a guide slot is provided on a side wall of the first support close to one end of the second support, and a guide protrusion is provided on one end of the second support close to the first support, and the guide protrusion is slidably connected to the guide slot.

[0017] In one embodiment, the fixing member includes a fixing bolt, which penetrates through the top wall of the support rod seat and is threadedly connected to the top plate of the lower cover.

[0018] In one of the embodiments, a reinforcement piece is provided on the support rod, and the reinforcement piece is used to enhance the support strength of the support rod.

[0019] In one embodiment, the reinforcement member includes a reinforcement rib, which is arranged on the side wall of the bottom end of the support rod, and the bottom end of the reinforcement rib extends to the support seat.

[0020] The above-mentioned support device is suitable for the performance test of the engine. The engine includes two first timing gears located above and a second timing gear located below the first timing gear. The timing gears are connected in sequence by a chain. The support device includes two support rods, a supporting member and a mounting assembly. The support rod is arranged on the engine; the supporting member is horizontally arranged on the support rod, and the supporting member is used to receive the first timing gear; the mounting assembly is arranged at the bottom end of the support rod, and the mounting assembly is used to install the support rod on the engine. The present application receives the first timing gear through the cooperation of the supporting member and the support rod, so that in the bench test of the engine, there is no need to remove the first timing gear from the engine, and only the other components connected to the first timing gear need to be removed. Therefore, when the engine needs to be reassembled after the test, there is no need to perform timing calibration on the timing gears and chains, which helps to shorten the assembly cycle of the engine and thus improve the assembly efficiency of the engine. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] FIG1 is a schematic structural diagram for illustrating the connection relationship between a support device and a first timing gear and a second timing gear in some embodiments of the present application;

[0023] FIG2 is a schematic structural diagram showing the connection relationship between the support rod, the supporting member, the limiting member and the mounting assembly in some embodiments of the present application;

[0024] FIG3 is a schematic diagram of a structure of a support device in some embodiments of the present application;

[0025] FIG. 4 is a schematic structural diagram for illustrating the connection relationship between the first support and the second support in some embodiments of the present application.

[0026] Description of Figure Numbers:

[0027] 100, first timing gear; 200, second timing gear; 300, chain; 400, support rod; 500, supporting member; 510, limiting member; 512, limiting slide groove; 600, mounting assembly; 610, supporting seat; 612, first support seat; 613, guide slide groove; 614, second support seat; 615, guide protrusion; 620, fixing member; 700, lower cover top plate; 800, reinforcement member. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0029] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0031] In this application, unless otherwise clearly specified and 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0032] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0033] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0034] In order to solve the problem in the related art that the engine needs to reassemble the timing gear and the chain 300 after the bench test, resulting in low assembly efficiency, a support device is provided. Referring to Figures 1 and 2, a support device provided in an embodiment of the present application is suitable for the performance test of the engine, the engine includes two first timing gears 100 located at the top and a second timing gear 200 located below the first timing gear 100, and each timing gear is connected in sequence through a chain 300. The support device includes two first timing gears 100 located at the top and a second timing gear 200 located below the first timing gear 100, and each timing gear is connected in sequence through a chain 300. The support device includes two support rods 400, a supporting member 500 and an installation assembly 600, the support rod 400 is arranged on the engine; the supporting member 500 is horizontally arranged on the support rod 400, and the supporting member 500 is used to receive the first timing gear 100; the installation assembly 600 is arranged at the bottom end of the support rod 400, and the installation assembly 600 is used to install the support rod 400 on the engine.

[0035] Among them, the first timing gear 100 is usually a gear between the camshaft and the crankshaft. The function of the first timing gear 100 is to transmit the rotational motion of the crankshaft to the camshaft, control the opening and closing of the valve, and adjust the intake and exhaust volumes; the second timing gear 200 is usually a gear connecting the crankshaft and other auxiliary components (such as an oil pump, etc.). The function of the second timing gear 200 is to transmit the rotational motion of the crankshaft to these auxiliary components to drive their operation.

[0036] Specifically, the engine further includes a lower cover top plate 700, the main function of which is to protect the components in the engine from the influence of the external environment, and at the same time provide a support and fixing structure to ensure the normal operation and safety performance of the engine. The first timing gear 100 is located above the lower cover top plate 700, the second timing gear 200 is located below the lower cover top plate 700, and the support rod 400 is arranged on the lower cover top plate 700. The support rod 400 cooperates with the lower cover top plate 700 to provide stable support for the support member 500 and the first timing gear 100.

[0037] In this embodiment, the present application supports the first timing gear 100 through the cooperation of the supporting member 500 and the support rod 400, so that during the bench test of the engine, there is no need to remove the first timing gear 100 from the engine, and only the other components connected to the first timing gear 100 need to be removed. Therefore, when the engine needs to be reassembled after the test, there is no need to perform timing calibration on the timing gears and the chain 300, which helps to shorten the assembly cycle of the engine and thus improve the assembly efficiency of the engine.

[0038] 1 and 2 , in some embodiments, the supporting member 500 includes two supporting rods, and one end of the supporting rod away from the support rod 400 is slidingly engaged with the hole wall of the center hole of the first timing gear 100 .

[0039] The support rods 400 are arranged in the vertical direction, one of the supporting rods is horizontally fixedly connected to the top of one of the support rods 400, and the other supporting rod is horizontally fixedly connected to the top of the other support rod 400. The longitudinal section of the whole after the supporting rod and the support rod 400 are fixedly connected is L-shaped.

[0040] Specifically, when the engine is subjected to a performance test, the camshaft and the crankshaft are first disassembled, and then the first timing gear 100 is translated onto the supporting rod. At this time, the supporting rod is passed through the center hole of the first timing gear 100 .

[0041] In this embodiment, the first timing gear 100 is stably supported through the cooperation of the supporting rod and the supporting stem, so that workers do not need to disassemble the first timing gear 100 and the chain 300 when conducting engine performance tests, thereby helping to improve the efficiency of subsequent engine reassembly.

[0042] 2 , in some embodiments, a limiting member 510 is provided on the supporting rod, and the limiting member 510 is used to limit the position of the first timing gear 100 on the supporting rod.

[0043] The limiting member 510 may be disposed on the top wall or the bottom wall of the supporting rod to limit the position of the first timing gear 100 on the supporting rod.

[0044] Specifically, in order to ensure that there is no misalignment between the two first timing gears 100 after they are translated onto the supporting rod, a limiter 510 is provided on the supporting rod to limit the sliding position of the first timing gears 100 on the supporting rod.

[0045] In this embodiment, the position of the first timing gear 100 on the supporting rod is limited by the limit member 510, so that workers can quickly and neatly place the two first timing gears 100 on the supporting rod to reduce the possibility of misalignment of the two first timing gears 100, and the chain 300 on the first timing gear 100 also moves synchronously with the first timing gear 100, so there is no need for disassembly, which helps to ensure that there is no need for subsequent timing calibration of the timing gear, thereby helping to improve the efficiency of subsequent engine reassembly.

[0046] 2 , in some embodiments, the limiting member 510 includes a limiting block, which is disposed on the supporting rod, and an end of the limiting block away from the supporting rod 400 is used to abut against the side wall of the first timing gear 100 .

[0047] The limiting block is fixedly connected to the peripheral side wall of the supporting rod, and one end of the limiting block away from the supporting rod 400 is opposite to the side wall of the first timing gear 100. The limiting block can also be integrally formed with the supporting rod.

[0048] Specifically, the end wall of the limit block away from one end of the support rod 400 and the peripheral side wall of the supporting rod form a limit slot 512. When the first timing gear 100 slides along the supporting rod until it is in contact with the end wall of the limit slot, the first timing gear 100 cannot continue to slide. That is, the sliding distance of the two first timing gears 100 can be limited by the limit slot 512, thereby helping to ensure that the two first timing gears 100 are unlikely to be misaligned, and the chain 300 on the first timing gear 100 also moves synchronously with the first timing gear 100, so that there is no need for disassembly, thereby improving the efficiency of subsequent engine reassembly.

[0049] 1 , in some embodiments, the mounting assembly 600 includes a support seat 610 and a fixing member 620 . The support seat 610 is disposed on the lower cover top plate 700 . The support seat 610 is used to receive the support rod 400 . The fixing member 620 is used to fix the support seat 610 on the lower cover top plate 700 .

[0050] Specifically, the support seat 610 provides stable support for the support rod 400, and the support seat 610 is fixed to the lower cover top plate 700 using the fixing member 620, so that the support device can provide stable support for the first timing gear 100 while not occupying too much space in the engine.

[0051] 1 and 3, in some embodiments, the support seat 610 includes a first support seat 612 and a second support seat 614, the first support seat 612 is connected to one of the support rods 400, and the second support seat 614 is connected to the other support rod 400, the first support seat 612 and the second support seat 614 are both slidably connected to the lower cover top plate 700, and the sliding directions of the first support seat 612 and the second support seat 614 are parallel to the direction of the line connecting the center points of the two first timing gears 100.

[0052] The bottom wall of the support rod 400 is fixedly connected to the top wall of the corresponding support, or the support rod 400 and the corresponding support are integrally formed.

[0053] Specifically, the sliding direction of the first support 612 and the second support 614 is parallel to the length direction of the lower cover top plate 700. Considering that the distances between the first timing gears 100 in different engines may be inconsistent, in order to enable the support device in this embodiment to adapt to the first timing gears 100 with different spacings, the first support 612 and the second support 614 are set to be slidably connected with the lower cover top plate 700, so that workers can adjust the distance between the first support 612 and the second support 614 according to actual needs.

[0054] In this embodiment, the first support 612 and the second support 614 are both configured as supports that can be slidably connected to the lower cover top plate 700, which can facilitate workers to adaptively adjust the distance between the two support rods 400 according to the distance between the two first timing gears 100, so that the end of the supporting rod away from the support rod 400 can be opposite to the center hole of the first timing gear 100.

[0055] 3 and 4 , in some embodiments, a guide groove 613 is provided on the side wall of the first support 612 near one end of the second support 614 , and a guide protrusion 615 is provided on one end of the second support 614 near the first support 612 , and the guide protrusion 615 is slidably connected to the guide groove 613 .

[0056] The guide protrusion 615 is fixedly connected to the second support 614 or is integrally formed therewith. The first support 612 and the second support 614 can slide toward or away from each other through the sliding cooperation between the guide protrusion 615 and the guide groove 613 .

[0057] Specifically, when the spacing between the center holes of the two first timing gears 100 is small, the first support 612 and the second support 614 are slid toward each other to reduce the distance between the two supports; when the spacing between the center holes of the two first timing gears 100 is large, the first support 612 and the second support 614 are slid away from each other to increase the distance between the two supports, thereby achieving adaptive adjustment of the distance between the two supports.

[0058] In this embodiment, the sliding cooperation between the guide protrusion 615 and the guide groove 613 helps to ensure the smoothness and stability of the two supports when sliding, while allowing the first support 612 and the second support 614 to slide toward or away from each other.

[0059] 1 and 2 , in some embodiments, the fixing member 620 includes a fixing bolt, which penetrates through the top wall of the support rod 400 seat and is threadedly connected to the lower cover top plate 700 .

[0060] Specifically, after the positions of the first support 612 and the second support 614 are determined, the first support 612 and the second support 614 are respectively fixed to the lower cover top plate 700 of the engine using fixing bolts, thereby achieving fixation of the first support 612 and the second support 614, and then achieving limiting of the support rod 400 and the supporting rod, so as to achieve stable support for the first timing gear 100.

[0061] In this embodiment, the first support 612 and the second support 614 after sliding adjustment are fixed to the lower cover top plate 700 respectively by fixing bolts. The structure is simple, the assembly and disassembly is convenient, and it is convenient for workers to continue to adjust the positions of the first support 612 and the second support 614.

[0062] 1 , in some embodiments, a reinforcement member 800 is disposed on the support rod 400 , and the reinforcement member 800 is used to enhance the support strength of the support rod 400 .

[0063] In particular, since the first timing gear 100 has a certain weight, in order to ensure the service life of the support rod 400, the support strength of the support rod 400 is enhanced by the reinforcement member 800.

[0064] Specifically, the reinforcement member 800 may be disposed at the bottom end of the support rod 400 to enhance the overall support strength of the support rod 400 .

[0065] 1 , in some embodiments, the reinforcement member 800 includes a reinforcement rib, which is disposed on a side wall at a bottom end of the support rod 400 , and a bottom end of the reinforcement rib extends to the support seat 610 .

[0066] Specifically, the reinforcing rib is fixedly connected or integrally formed with the side wall at the bottom end of the support rod 400, and the longitudinal section of the reinforcing rib is a straight triangle or a right-angled trapezoid. The reinforcing rib can be arranged around the peripheral side wall of the support rod 400, that is, the reinforcing rib can be arranged on one side wall or multiple side walls of the support rod 400 to enhance the support strength of the support rod 400.

[0067] In this embodiment, the reinforcing ribs help to increase the force-bearing area of ​​the bottom end of the support rod 400 , thereby enhancing the supporting strength of the support rod 400 .

[0068] The support device in the present application is suitable for a performance test of an engine, i.e., a bench test. During the test, the first support 612 and the second support 614 can be slidably adjusted according to the spacing between the center holes of the two first timing gears 100, so that one of the supporting rods is opposite to the center hole of one of the first timing gears 100, and the other supporting rod is opposite to the center hole of the other first timing gear 100; the first support 612 and the second support 614 are then fixedly connected to the lower cover top plate 700 on the engine by using fixing bolts, so as to achieve a stable connection between the support device and the lower cover top plate 700; the two first timing gears 100 are then translated onto the supporting rods, and the side walls of the first timing gears 100 are pressed against the limit blocks, so that when performing an engine bench test, there is no need to disassemble the first timing gears 100 and the chain 300, thereby ensuring that when the engine is reassembled later, there is no need to re-calibrate the timing of the two first timing gears 100, which helps to improve the efficiency of engine reassembly.

[0069] In the description of this specification, the description with reference to the terms "some embodiments", "other embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic description of the above terms does not necessarily refer to the same embodiment or example.

[0070] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0071] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A support device, suitable for a performance test of an engine, wherein the engine comprises two first timing gears located above and a second timing gear located below the first timing gears, wherein the timing gears are sequentially connected by a chain, and wherein: The supporting device comprises: two support rods, arranged on the engine; A supporting member, horizontally arranged on the supporting rod, the supporting member is used to receive the first timing gear; A mounting assembly is arranged at the bottom end of the support rod, and the mounting assembly is used to mount the support rod on the engine.

2. The support device according to claim 1, characterized in that: The supporting member comprises two supporting rods, and one end of the supporting rod away from the support rod is slidingly matched with the hole wall of the center hole of the first timing gear.

3. The supporting device according to claim 2, characterized in that: The supporting rod is provided with a limiting member, and the limiting member is used to limit the position of the first timing gear on the supporting rod.

4. The supporting device according to claim 3, characterized in that: The limiting member comprises a limiting block, and the limiting block is arranged on the supporting rod. An end of the limiting block away from the supporting rod is used to press against the side wall of the first timing gear.

5. The supporting device according to claim 1, characterized in that: The engine further comprises a lower cover top plate, the first timing gear is located above the lower cover top plate, the second timing gear is located below the lower cover top plate, and the mounting assembly comprises: A support seat, arranged on the top plate of the lower cover, and the support seat is used to receive the support rod; A fixing member is used to fix the support seat on the top plate of the lower cover.

6. The supporting device according to claim 5, characterized in that: The support seat includes a first seat and a second seat, the first seat is connected to one of the support rods, the second seat is connected to the other support rod, the first seat and the second seat are both slidably connected to the top plate of the lower cover, and the sliding directions of the first seat and the second seat are parallel to the direction of the line connecting the center points of the two first timing gears.

7. The supporting device according to claim 6, characterized in that: A guide slot is provided on the side wall of the first support close to one end of the second support, and a guide protrusion is provided on one end of the second support close to the first support, and the guide protrusion is slidably connected to the guide slot.

8. The supporting device according to claim 5, characterized in that: The fixing member comprises a fixing bolt, and the fixing bolt penetrates through the top wall of the support rod seat and is threadedly connected with the top plate of the lower cover.

9. The supporting device according to claim 5, characterized in that: The support rod is provided with a reinforcement member, and the reinforcement member is used to enhance the support strength of the support rod.

10. The supporting device according to claim 9, characterized in that: The reinforcement member includes a reinforcement rib, which is arranged on the side wall of the bottom end of the support rod, and the bottom end of the reinforcement rib extends to the support seat.

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