Testing device for rotary speed reducer

Abstract

The utility model discloses a testing device for a rotary speed reducer, and the device comprises a pedestal which is used for supporting and fixing the rotary speed reducer to be tested; the guide rail is fixed on one side of the base; the driving mechanism is arranged on the guide rail, part of the driving mechanism is fixed, and part of the driving mechanism can axially move; the support is connected with the driving mechanism and comprises a first supporting rod and a second supporting rod which are rotatably connected, the first supporting rod is rotatably connected with the side, close to the base, of the guide rail, and the second supporting rod is rotatably connected with the movable part of the driving mechanism; the mechanical sensor is arranged on the bracket; one end of the connecting arm is connected with the mechanical sensor, and the other end is connected with a main shaft of the rotary speed reducer. The rotary speed reducer testing device is simple in structure, can simulate the operation state of the rotary speed reducer, and reduces component force errors caused by vertical stress.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary reducers, in particular to a rotary reducer testing device. Background Art

[0002] The slewing test platform currently on the market is vertical when subjected to force. When a certain angle is reached, a larger torque test cannot be performed to avoid damage to the oil cylinder. In the prior art, a universal joint is installed on the oil cylinder. When the force is gradually increased, the vertical force remains unchanged, but the component force error of the slewing reducer will become larger and larger. At the same time, a forklift or an overhead crane is required to install the tooling and the slewing reducer. Replacing slewing reducers of different sizes requires adjusting the position of the oil cylinder, which wastes a lot of time.

[0003] Therefore, it is necessary to provide a new rotary reducer testing device to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a rotary reducer testing device, which can simulate the rotary operation state to perform the test, apply force along the curve direction, and reduce the force error.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A rotary reducer testing device, comprising:

[0007] A base, used to support and fix the slewing reducer to be tested;

[0008] A guide rail fixed to one side of the base;

[0009] A driving mechanism, disposed on the guide rail, wherein a portion of the driving mechanism is fixed and a portion of the driving mechanism is axially movable;

[0010] The bracket comprises a first support rod and a second support rod, wherein the first support rod is rotatably connected to the second support rod, the first support rod is rotatably connected to a side of the guide rail close to the base, and the second support rod is rotatably connected to a movable part of the driving mechanism;

[0011] A mechanical sensor is arranged on the bracket;

[0012] A connecting arm has one end connected to the mechanical sensor and the other end connected to the main shaft of the rotary reducer.

[0013] As a further improved technical solution of the utility model, the first support rod and the second support rod are rotatably connected through a first shaft, a first through hole is provided at one end of the first support rod close to the second support rod, a second through hole is provided at one end of the second support rod close to the first support rod, and the first shaft passes through the first through hole and the second through hole.

[0014] As a further improved technical solution of the utility model, the driving mechanism includes a cylinder, a piston rod and a cross bar, the cylinder is fixed to the guide rail, the piston rod is at least partially located in the cylinder and can move axially, the cross bar is fixed to one end of the piston rod away from the cylinder, and the second support rod is rotatably connected to the cross bar.

[0015] As a further improved technical solution of the utility model, the guide rail includes a bottom plate, side plates arranged on both sides of the bottom plate, and a limiting portion arranged on the bottom plate, and the first support rod is rotatably connected to the limiting portion.

[0016] As a further improved technical solution of the utility model, the driving mechanism also includes a sleeve, which is fixed to one end of the cylinder away from the piston rod. The guide rail also includes a rotating shaft, which passes through the sleeve, the first support rod and the limiting portion.

[0017] As a further improved technical solution of the utility model, it also includes a slider, which is fixed at both ends of the cross bar, the lower surface of the slider abuts the bottom plate, the side of the slider away from the second support rod abuts the side plate, the side of the slider away from the side plate abuts the second support rod, and the cross bar passes through the second support rod and the slider.

[0018] As a further improved technical solution of the utility model, it also includes a mounting seat, which is arranged on the bracket, the mechanical sensor is fixed on the mounting seat, the mounting seat is provided with a seventh through hole, and the first shaft body passes through the first through hole, the second through hole and the seventh through hole;

[0019] It comprises two groups of the brackets, and the mounting seat is located between the two groups of the brackets.

[0020] As a further improved technical solution of the utility model, it also includes a connecting component, which includes a fixing seat and a second shaft body, the fixing seat is fixed on the mechanical sensor and has an eighth through hole, the connecting arm is provided with a ninth through hole, and the second shaft body passes through the eighth through hole and the ninth through hole.

[0021] As a further improved technical solution of the utility model, it includes two connecting arms, each connecting arm is provided with a tenth through hole, the tenth through hole is adapted to the main shaft, the rotary reducer is located between the two connecting arms, and the main shaft is penetrated by the tenth through holes on both sides.

[0022] As a further improved technical solution of the utility model, it includes a connecting arm, the inner wall of the connecting arm is adapted to the main shaft, and the main shaft is sleeved in the connecting arm.

[0023] Compared with the prior art, the beneficial effect of the rotary reducer test device of the utility model is that: through the cooperation between the driving mechanism, the bracket and the connecting arm, the driving mechanism is forced to drive the bracket to move upward in a curve, and at the same time drives the connecting arm to rotate. When the driving mechanism gradually increases the force, the rotation angle of the rotary reducer increases, and the torque received also increases, thereby testing the ultimate strength of the rotary reducer. The rotary reducer test device has a simple structure, can simulate the operating state of the rotary reducer, reduce the component force error caused by vertical force, save space and manpower, and has high safety and reusability. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of a rotary reducer testing device according to a specific embodiment of the utility model;

[0025] Figure 2 It is an exploded schematic diagram of a rotary reducer testing device according to a specific embodiment of the utility model;

[0026] Figure 3 It is a schematic diagram of the exploded structure of the driving mechanism and the bracket of a specific embodiment of the utility model;

[0027] Figure 4 This is a schematic diagram of the structure of a guide rail according to a specific embodiment of the utility model;

[0028] Figure 5 It is a front view schematic diagram of the assembly of the bracket and the driving mechanism of a specific embodiment of the utility model;

[0029] Figure 6 It is a partial assembly schematic diagram of a rotary reducer testing device according to a specific embodiment of the utility model;

[0030] Figure 7 This is a schematic diagram of the exploded structure of a mounting base, a mechanical sensor and a connecting assembly according to a specific embodiment of the utility model;

[0031] Figure 8 The utility model is a schematic structural diagram of a connecting arm and a rotary reducer according to a specific embodiment of the utility model. DETAILED DESCRIPTION

[0032] The exemplary embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. If there are several embodiments, the features of these embodiments can be combined with each other without conflict. When the description refers to the drawings, unless otherwise specified, the same numbers in different drawings represent the same or similar elements. The contents described in the following exemplary embodiments do not represent all embodiments consistent with the present invention; on the contrary, they are merely examples of devices, products and / or methods that are consistent with some aspects of the present invention and are recorded in the claims of the present invention.

[0033] The terms used in the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the scope of protection of the present invention. The singular forms "a", "said" or "the" used in the specification and claims of the present invention are also intended to include plural forms, unless the context clearly indicates other meanings.

[0034] It should be understood that the words used in the specification and claims of the present invention, such as "first", "second" and similar words, do not indicate any order, quantity or importance, but are only used to distinguish the names of features. Similarly, words such as "one" or "an" do not indicate a quantitative limitation, but indicate the existence of at least one. Unless otherwise specified, words such as "front", "rear", "upper", "lower" and similar words appearing in the present invention are only for the convenience of description and are not limited to a specific position or a spatial orientation. Words such as "include" or "comprise" are an open-ended expression, meaning that the elements appearing before "include" or "comprise" include the elements appearing after "include" or "comprise" and their equivalents, which does not exclude that the elements appearing before "include" or "comprise" may also include other elements. If "several" appears in the present invention, it means two or more.

[0035] See also Figures 1 to 8 As shown, this embodiment discloses a rotary reducer testing device for testing the holding torque and overturning torque of the rotary reducer, the testing device comprises a base 1, a guide rail 2, a driving mechanism 3, a bracket 4, a mechanical sensor 5 and a connecting arm 6, the base 1 is used to support and fix the rotary reducer 100 to be tested, the guide rail 2 is fixedly arranged on one side of the base 1, the driving mechanism 3 is arranged on the guide rail 2 and a part of the fixed part can be axially moved, one end of the bracket 4 is rotatably connected to the movable part of the driving mechanism 3, and the other end is rotatably connected to a side close to the base 1 along the length or width direction of the guide rail 2, the mechanical sensor 5 is arranged on the bracket 4, and the two ends of the connecting arm 6 are connected to the mechanical sensor 5 and the main shaft 101 of the rotary reducer 100.

[0036] See also Figures 1 to 3 As shown, the driving mechanism 3 includes a cylinder 31, a piston rod 32, a sleeve 33 and a cross bar 34, wherein the diameter of the piston rod 32 is smaller than the diameter of the cylinder 31, the piston rod 32 is at least partially located in the cylinder 31 and can move axially, the sleeve 33 is fixed to the end of the cylinder 31 away from the piston rod 32, the cross bar 34 is fixed to the end of the piston rod 32 away from the cylinder 31, the cylinder 31 and the sleeve 33 are relatively fixed on the guide rail 2, and the piston rod 32 drives the cross bar 34 to move along the axial direction of the piston rod 32. In some embodiments, a through hole 321 is provided at the end of the piston rod 32 away from the cylinder 31, and the cross bar 34 is penetrated with the through hole 321, so that the piston rod 32 can drive the cross bar 34 to move synchronously.

[0037] See also Figures 1 to 3 , Figure 5 , Figure 6 As shown, the bracket 4 includes a first support rod 41 and a second support rod 42, and the first support rod 41 is rotatably connected to the second support rod 42. Specifically, the first support rod 41 and the second support rod 42 are rotatably connected through a first shaft body 43, a first through hole 411 is provided at one end of the first support rod 41 close to the second support rod 42, and a second through hole 421 is provided at one end of the second support rod 42 close to the first support rod 41, and the first shaft body 43 is penetrated with the first through hole 411 and the second through hole 421, so as to realize the rotatable connection between the first support rod 41 and the second support rod 42, and both the first support rod 41 and the second support rod 42 can rotate around the first shaft body 43. The end of the first support rod 41 away from the second support rod 42 can rotate around the axial direction of the sleeve 33. The guide rail 2 includes a rotating shaft 25, and the rotating shaft 25 passes through the sleeve 33 and the first support rod 41. Specifically, the end of the first support rod 41 away from the second support rod 42, that is, the end close to the sleeve 33, is provided with a third through hole 412. The sleeve 33 is a hollow cylinder. The rotating shaft 25 passes through the third through hole 412 and the sleeve 33, so that the first support rod 41 is rotatably connected to the side of the guide rail 2 close to the base 1, and the first support rod 41 can rotate around the rotating shaft 25. The end of the second support rod 42 away from the first support rod 41 is rotatably connected to the cross bar 34. Specifically, the end of the second support rod 42 away from the first support rod 41, that is, the end close to the cross bar 34, is provided with a fourth through hole 422. The cross bar 34 passes through the fourth through hole 422, so that the second support rod 42 is rotatably connected to the cross bar 34, and the second support rod 42 can rotate around the cross bar 34.

[0038] In this embodiment, the connection and cooperation relationship between the driving mechanism 3 and the bracket 4 enables the connection point between the first support rod 41 and the second support rod 42 in the bracket 4 to perform up and down curved motion with the axial movement of the driving mechanism 3, simulating the operating state of the rotary reducer.

[0039] See also Figure 1 , Figure 2 , Figure 4 and Figure 6As shown, the guide rail 2 includes a bottom plate 21 and a side plate 22, the two side plates 22 are arranged on both sides of the bottom plate 21 and extend upward along the two sides of the bottom plate 21, and the driving mechanism 3 and the bracket 4 are both arranged on the bottom plate 21. Further, the guide rail 2 also includes a limiting portion 23, the limiting portion 23 is fixedly arranged on the bottom plate 21, the first support rod 41 is at least partially located in the limiting portion 23 and is rotatably connected to the limiting portion 23, the rotating shaft 25 passes through the sleeve 33, the first support rod 41 and the limiting portion 23; the limiting portion 23 is provided with a fifth through hole 231, and the rotating shaft 25 passes through the sleeve 33, the third through hole 412 and the fifth through hole 231. Specifically, the limiting portion 23 includes two limiting plates 232 arranged in parallel, the distance between the two limiting plates 232 is equivalent to the thickness of the first support rod 41, the fifth through hole 231 is arranged on the limiting plate 232, and the two limiting plates 232 are both provided with the fifth through hole 231; the limiting portion 23 limits the first support rod 41 in the axial direction of the rotating shaft 25, and the rotating shaft 25 limits the end of the first support rod 41 connected thereto, so that the first support rod 41 can only rotate around the rotating shaft 25, and will not be displaced in other directions. Further, the side plate 22 is provided with a ninth through hole 221, and the rotating shaft 25 passes through the ninth through hole 221, the fifth through hole 231, the third through hole 412 and the sleeve 33 from the outside in sequence.

[0040] See also Figures 1 to 4 , Figure 6 As shown, in this embodiment, the rotary reducer test device further includes a slider 7, which is fixed to both ends of the cross bar 34 and moves axially with the cross bar 34; the lower surface of the slider 7 abuts the bottom plate 21, and the side of the slider 7 away from the second support rod 42 abuts the side plate 22; further, the slider 7 is provided with a sixth through hole 71, the cross bar 34 is penetrated with a fourth through hole 422 and a sixth through hole 71, and the side of the slider 7 away from the side plate 22 abuts the second support rod 42. The setting of the slider 7 is used to reduce the friction between the cross bar 34 and the guide rail 2.

[0041] In other embodiments, the slider 7 may also be fixed below the cross bar 34 , only abutting against the bottom plate 21 downward, or abutting against the bottom plate 21 downward and against the side plates 22 on both sides, which can also reduce the friction between the cross bar 34 and the guide rail 2 .

[0042] See also Figure 1 , Figure 2 , Figure 4 and Figure 6 As shown, the guide rail 2 also includes a baffle 24, which is arranged on the side of the side plate 22 away from the bottom plate 21, and the baffles 24 on both sides extend from the upper ends of the side plates 22 close to each other, and the baffles 24 are parallel to the bottom plate 21. In the vertical direction, the slider 7 or the cross bar 34 at least partially overlaps with the baffle 24 to prevent the cross bar 34 from detaching from the guide rail 2 upward.

[0043] See also Figure 1, Figure 2 and Figure 7 As shown, the rotary reducer test device of this embodiment also includes a mounting seat 8 for mounting a mechanical sensor 5; the mounting seat 8 is arranged on the bracket 4, the mechanical sensor 5 is fixed on the mounting seat 8, and the mounting seat 8 and the mechanical sensor 5 move in a curve with the bracket 4. Specifically, the mounting seat 8 is provided with a seventh through hole 81, and the first shaft 43 is penetrated by a first through hole 411, a second through hole 421 and a seventh through hole 81. Further, the test device of this embodiment includes two groups of brackets 4, the mounting seat 8 is located between the two groups of brackets 4, and the two sides of the mounting seat 8 are respectively abutted against the two groups of brackets 4 to improve the installation stability of the mounting seat 8 and the mechanical sensor 5.

[0044] For further information, see Figures 1 to 3 As shown, the bracket 4 further includes a support member 44 connected between the two groups of brackets 4 , and the support member 44 is perpendicular to the first support rod 41 or the second support rod 42 , and is used to enhance the installation stability between the two groups of brackets 4 .

[0045] In other embodiments, the rotary reducer testing device may also be provided with only one set of brackets 4, and the driving mechanism 3 can also sequentially drive the brackets 4, the mounting seat 8, the mechanical sensor 5 and the connecting arm 6 to perform curved motion.

[0046] See also Figure 1 , Figure 2 , Figure 6 , Figure 7 and Figure 8 As shown, the connecting arm 6 and the mechanical sensor 5 are connected through a connecting assembly 9, which includes a fixing seat 91 and a second shaft 92. The fixing seat 91 is fixed on the mechanical sensor 5 and has an eighth through hole 911. The connecting arm 6 is provided with a ninth through hole 61. The second shaft 92 penetrates the eighth through hole 911 and the ninth through hole 61. Further, the fixing seat 91 includes two fixing parts 912 arranged opposite to each other, and the two fixing parts 912 are interlocked to form the eighth through hole 911. In this way, the fixing seat 91, the mechanical sensor 5 and the mounting seat 8 are relatively fixed. The mounting seat 8 at the bottom can drive the mechanical sensor 5 and the fixing seat 91 at the top to rotate around the first shaft 43, and the fixing seat 91 at the top can drive the mechanical sensor 5 and the mounting seat 8 at the bottom to rotate around the second shaft 92, and the connecting arm 6 can rotate around the second shaft 92, forming a relatively stable structure that can restrain each other.

[0047] See also Figure 1 and Figure 8As shown, the rotary reducer test device includes two connecting arms 6, the connecting arms 6 are provided with a tenth through hole 62, the tenth through hole 62 is adapted to the main shaft 101 of the rotary reducer 100, the rotary reducer 100 is arranged between the two connecting arms 6, and the main shaft 101 passes through the tenth through holes 62 of the connecting arms 6 on both sides. At this time, the test device is used to test the holding torque of the rotary reducer 100.

[0048] In another embodiment, the rotary reducer test device is provided with a connecting arm 6, the inner wall of the connecting arm 6 is adapted to the main shaft 101, and the main shaft 101 is at least partially sleeved in the connecting arm 6. In this case, the test device is used to test the overturning moment of the rotary reducer 100.

[0049] The rotary reducer testing device of this embodiment can be used to test the holding torque and overturning torque of the rotary reducer 100. When replacing a different rotary reducer 100, there is no need to adjust the position of the driving mechanism 3, thereby simplifying the operation process. It can also be used for other product testing, such as the strength test of the shock absorber baffle.

[0050] In summary, compared with the prior art, the rotary reducer test device of the utility model has the following advantages: through the cooperation between the driving mechanism 3, the bracket 4 and the connecting arm 6, the driving mechanism 3 is forced to drive the bracket 4 to move upward in a curve, and at the same time drives the connecting arm 6 to rotate. When the driving mechanism 3 gradually increases the force, the rotation angle of the rotary reducer 100 increases, and the torque received also increases, thereby testing the ultimate strength of the rotary reducer 100. The rotary reducer test device has a simple structure, a safe test environment, and is easy to install and debug. It can simulate the operating state of the rotary reducer, reduce the component force error caused by vertical force, save space and manpower, and has high safety and reusability.

[0051] The above implementation modes are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. The understanding of this specification should be based on the technical personnel in the relevant technical field. Although this specification has described the present invention in detail with reference to the above embodiments, ordinary technical personnel in the field should understand that the technical personnel in the relevant technical field can still modify or make equivalent substitutions to the present invention, and all technical solutions and improvements thereof that do not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A rotary reducer testing device, characterized in that: include: A base (1) for supporting and fixing a rotary reducer (100) to be tested; A guide rail (2) fixed to one side of the base (1); A driving mechanism (3) is arranged on the guide rail (2), wherein the driving mechanism (3) is partially fixed and partially movable axially; The bracket (4) comprises a first support rod (41) and a second support rod (42), wherein the first support rod (41) and the second support rod (42) are rotatably connected, the first support rod (41) is rotatably connected to a side of the guide rail (2) close to the base (1), and the second support rod (42) is rotatably connected to a movable part of the driving mechanism (3); A mechanical sensor (5) is arranged on the bracket (4); A connecting arm (6) has one end connected to the mechanical sensor (5) and the other end connected to the main shaft (101) of the rotary reducer (100).

2. The rotary reducer testing device according to claim 1, characterized in that: The first support rod (41) and the second support rod (42) are rotatably connected via a first shaft (43); a first through hole (411) is provided at one end of the first support rod (41) close to the second support rod (42); a second through hole (421) is provided at one end of the second support rod (42) close to the first support rod (41); and the first through hole (411) and the second through hole (421) are penetrated by the first shaft (43).

3. The rotary reducer testing device according to claim 1, characterized in that: The driving mechanism (3) comprises a cylinder (31), a piston rod (32) and a cross bar (34); the cylinder (31) is fixed to the guide rail (2); the piston rod (32) is at least partially located in the cylinder (31) and is axially movable; the cross bar (34) is fixed to an end of the piston rod (32) away from the cylinder (31); and the second support rod (42) is rotatably connected to the cross bar (34).

4. The rotary reducer testing device according to claim 3, characterized in that: The guide rail (2) comprises a bottom plate (21), side plates (22) arranged on both sides of the bottom plate (21), and a limiting portion (23) arranged on the bottom plate (21), and the first support rod (41) is rotatably connected to the limiting portion (23).

5. The rotary reducer testing device according to claim 4, characterized in that: The driving mechanism (3) further comprises a sleeve (33), wherein the sleeve (33) is fixed to an end of the cylinder (31) away from the piston rod (32), and the guide rail (2) further comprises a rotating shaft (25), wherein the rotating shaft (25) passes through the sleeve (33), the first support rod (41) and the limiting portion (23).

6. The rotary reducer testing device according to claim 4, characterized in that: It also comprises a slider (7), wherein the slider (7) is fixed to both ends of the cross bar (34), the lower surface of the slider (7) abuts against the bottom plate (21), the side of the slider (7) away from the second support rod (42) abuts against the side plate (22), the side of the slider (7) away from the side plate (22) abuts against the second support rod (42), and the cross bar (34) passes through the second support rod (42) and the slider (7).

7. The rotary reducer testing device according to claim 2, characterized in that: It also includes a mounting seat (8) arranged on the bracket (4), the mechanical sensor (5) is fixed on the mounting seat (8), the mounting seat (8) is provided with a seventh through hole (81), and the first shaft (43) is penetrated by the first through hole (411), the second through hole (421) and the seventh through hole (81); It comprises two groups of brackets (4), and the mounting seat (8) is located between the two groups of brackets (4).

8. The rotary reducer testing device according to claim 1, characterized in that: The invention also comprises a connecting component (9), wherein the connecting component (9) comprises a fixing seat (91) and a second shaft body (92), wherein the fixing seat (91) is fixed on the mechanical sensor (5) and has an eighth through hole (911), the connecting arm (6) is provided with a ninth through hole (61), and the second shaft body (92) passes through the eighth through hole (911) and the ninth through hole (61).

9. The rotary reducer testing device according to claim 1, characterized in that: The invention comprises two connecting arms (6), each connecting arm (6) being provided with a tenth through hole (62), the tenth through hole (62) being adapted to the main shaft (101), the rotary reducer (100) being located between the two connecting arms (6), and the main shaft (101) being provided with the tenth through holes (62) on both sides.

10. The rotary reducer testing device according to claim 1, characterized in that: It comprises a connecting arm (6), the inner wall of the connecting arm (6) is adapted to the main shaft (101), and the main shaft (101) is sleeved in the connecting arm (6).

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