Assembly node mis-installation prevention mechanism and mis-installation prevention method for secondary reducer

Abstract

The present invention discloses an anti-misinstallation mechanism for the assembly node of the secondary reducer, which uses the limiting ball on the anti-misinstallation positioning column to fill the gap between it and the positioning groove, so as to prevent the anti-misinstallation positioning column from being offset or vibrated in the positioning groove, thereby affecting the connection stability of the secondary reducer after installation. It is characterized in that it consists of a reducer case cover, an installation groove, an edge guide hole, a positioning groove and a reducer base, the reducer case cover is placed on the reducer base, the reducer case cover has a corresponding installation groove at the diagonal, the reducer base has a corresponding positioning groove at the diagonal, the cross section of the positioning groove is a triangular structure, the reducer base has a group of edge guide holes at the diagonal, a group of edge guide holes consists of three edge guide holes, and the three edge guide holes in the same group are equidistantly distributed around the positioning groove.

Description

Technical Field

[0001] The present invention discloses an anti-misinstallation mechanism and an anti-misinstallation method for an assembly node of a two-stage reducer, which relate to a mechanism and an anti-misinstallation method for preventing incorrect installation during assembly of a two-stage reducer, and belongs to the technical field of reducers. Background Art

[0002] Reducers are generally used for low-speed and high-torque transmission equipment. The purpose of reducing speed is achieved by meshing the gear with a small number of teeth on the input shaft of the reducer with the large gear on the output shaft. In the production and assembly process of the two-stage reducer, the box cover is generally placed on the base by hoisting, and then the box cover and the base are assembled together with the mounting bolts. Since the box cover often has irregular offset and swing during the hoisting process, the assembly holes on the box cover and the corresponding assembly holes on the base cannot be aligned, and even the assembly holes are misaligned, resulting in rework. Therefore, it is necessary to set an anti-wrong installation mechanism to avoid this situation. At present, the most widely used anti-wrong installation mechanism is to weld a positioning bolt on the box cover, open a corresponding positioning hole at the corresponding position of the base, and insert the positioning bolt into the positioning hole when the box cover is lowered. The box cover is limited so that the box cover and the base are aligned. However, in actual use, in order to facilitate the lowering of the box cover, there is often a large gap between the positioning bolt and the corresponding positioning hole. The positioning bolt will have a certain offset in the positioning hole, which will cause the center lines between the corresponding assembly holes on the box cover and the base to be not on the same straight line, making it difficult to screw the installation bolts or even cause deformation, affecting the use quality of the secondary reducer. In addition, during the use of the secondary reducer after assembly, since the positioning bolt and the positioning hole are not fixedly connected and there is a large gap between the two, the positioning bolt is easily affected by the vibration generated by the operation of the secondary reducer and undergoes continuous and irregular displacement in the positioning hole, which in turn drives other assembly nodes to generate irregular lateral offset forces, reducing the connection stability of the secondary reducer of the assembly shaft.

[0003] Publication No. CN113231978A discloses a reducer production assembly machine and assembly method, including a horizontal base plate, with two mutually parallel horizontal grooves opened on the upper surface of the base plate, and a positioning mechanism slidingly engaged with the upper surface of the base plate through the horizontal grooves; in order to facilitate the lowering of the box cover, the positioning mechanism in the assembly machine has a large gap between the mechanism components, which can easily cause the positioning rod to offset or vibrate and displace, resulting in affecting the connection stability of the reducer after the reducer is assembled. Summary of the invention

[0004] In order to improve the above situation, the present invention provides an anti-misinstallation mechanism and an anti-misinstallation method for the assembly node of the two-stage reducer, which provides an anti-misinstallation mechanism by which the gap between the anti-misinstallation positioning column and the positioning groove is filled by a limiting ball on the anti-misinstallation positioning column to prevent the anti-misinstallation positioning column from being offset or vibrated in the positioning groove, thereby affecting the connection stability of the two-stage reducer after installation.

[0005] The assembly node anti-misassembly mechanism for the two-stage reducer of the present invention is implemented as follows: The assembly node anti-misassembly mechanism for the two-stage reducer of the present invention is composed of a main body component and an anti-misassembly component.

[0006] The main assembly is composed of a reducer case cover, a mounting slot, an edge guide hole, a positioning slot and a reducer base.

[0007] The reducer case cover is placed on the reducer base.

[0008] The reducer case cover has corresponding installation slots at the diagonal positions.

[0009] The reducer base has corresponding positioning grooves at the diagonal positions.

[0010] Preferably, the cross section of the positioning slot is a triangular structure.

[0011] A group of edge guide holes are correspondingly opened at the diagonal positions of the reducer base, and a group of edge guide holes is composed of three edge guide holes.

[0012] Preferably, the three edge guide holes in the same group are equidistantly distributed around the positioning slot.

[0013] The anti-misinstallation assembly is composed of a mounting plate, a limit fixing sleeve, a movable guide rod, an anti-misinstallation positioning column, a limit ball, a ball mounting groove and a guide limit column.

[0014] The installation fixing plate is placed in the installation slot, and the error-proof positioning column is placed on the installation fixing plate.

[0015] Preferably, the anti-mistake positioning column is a triangular prism structure, the anti-mistake positioning column is located in the middle of the mounting plate, and the anti-mistake positioning column corresponds to the positioning slot.

[0016] One end of the anti-error positioning column is connected to the mounting plate, and the other end extends out of the mounting plate. The guide positioning column is placed on the other end of the anti-error positioning column.

[0017] Preferably, the guide and positioning column is a triangular pyramid structure.

[0018] A group of ball mounting grooves are correspondingly opened on the three sides of the anti-mistake positioning column, and a group of ball mounting grooves is composed of multiple ball mounting grooves.

[0019] Preferably, the plurality of ball mounting grooves in the same group are equidistantly distributed along the axial direction of the anti-mistake positioning column.

[0020] The limit ball can be rolled in the ball installation groove.

[0021] Preferably, one third of the limiting ball extends out of the ball mounting groove.

[0022] The anti-mistake positioning column is inserted into the corresponding positioning slot, and the limiting ball contacts the inner wall of the positioning slot.

[0023] Three limit fixing sleeves are placed on the installation fixing plate.

[0024] Preferably, a buffer rubber ring is sleeved on the limit fixing sleeve.

[0025] The three limit fixing sleeves are equidistantly distributed around the anti-mistake positioning column, and the three limit fixing sleeves correspond to the three edge guide holes one by one.

[0026] One end of the movable guide rod is detachably placed in the limit fixing sleeve.

[0027] Preferably, one end of the movable guide rod is inserted or screwed into the limiting fixing sleeve, and the other end of the movable guide rod is a conical structure.

[0028] Preferably, the length of the movable guide rod is greater than the total length of the error-proofing positioning column and the guide limit column.

[0029] The limiting fixing sleeve is inserted into the corresponding edge guide hole, and the buffer rubber ring is in contact with the inner wall of the edge guide hole;

[0030] The present invention also relates to an anti-mis-assembly method for an assembly node anti-mis-assembly mechanism of a two-stage reducer, comprising the following steps:

[0031] 1) Use lifting equipment to hang the reducer case cover above the reducer base;

[0032] 2) The hoisting personnel hold the reducer case cover with their hands and adjust the position so that the movable guide rod points to the corresponding edge guide hole;

[0033] 3) Lower the reducer case cover so that the movable guide rod is inserted into the edge guide hole, and then drives the limit fixing sleeve to be inserted into the edge guide hole for auxiliary positioning;

[0034] 4) At the same time, the anti-error positioning column and the guide limit column are inserted into the positioning groove. The limit ball on the anti-error positioning column rolls and contacts the positioning groove during the falling process, and the position of the anti-error positioning column is fine-tuned so that the anti-error positioning column is stably stuck in the positioning groove and will not move;

[0035] 5) Remove the movable guide rod from the limit fixing sleeve;

[0036] 6) Use the mounting bolts to install the reducer case cover on the reducer base.

[0037] Beneficial effects.

[0038] 1. It can prevent the secondary reducer from being installed incorrectly during the assembly process.

[0039] Second, it can prevent the anti-error positioning column from being offset or vibrated in the positioning groove, which will affect the connection stability of the secondary reducer after installation.

[0040] 3. A movable guide rod can be inserted into the edge guide hole for auxiliary positioning, so that the anti-mistake positioning column can be smoothly inserted into the positioning groove to limit the reducer.

[0041] Description of the drawings.

[0042] Figure 1 A three-dimensional structural diagram of the assembly node anti-misassembly mechanism for a two-stage reducer of the present invention;

[0043] Figure 2 A three-dimensional structural diagram of the assembly node anti-misassembly mechanism for a two-stage reducer of the present invention;

[0044] Figure 3 The three-dimensional structural diagram of the assembly node anti-misassembly mechanism for the two-stage reducer of the present invention only shows the structure of the anti-misassembly component;

[0045] Figure 4 The structural schematic diagram of the anti-misassembly mechanism of the assembly node of the two-stage reducer of the present invention only shows the structure of the limiting ball.

[0046] In the attached figure

[0047] The components include: a reducer case cover (1), a mounting plate (2), a mounting groove (3), a limit fixing sleeve (4), a movable guide rod (5), an anti-mistake positioning column (6), an edge guide hole (7), a positioning groove (8), a reducer base (9), a limit ball (10), a ball mounting groove (11), and a guide limit column (12). DETAILED DESCRIPTION

[0048] The assembly node anti-misassembly mechanism for the two-stage reducer of the present invention is composed of a main body component and an anti-misassembly component.

[0049] The main body assembly is composed of a reducer case cover (1), a mounting slot (3), an edge guide hole (7), a positioning slot (8) and a reducer base (9).

[0050] The reducer case cover (1) is placed on the reducer base (9).

[0051] The reducer case cover (1) has corresponding installation slots (3) at the diagonal positions.

[0052] The reducer base (9) has corresponding positioning slots (8) at the diagonal positions.

[0053] Preferably, the cross section of the positioning slot (8) is a triangular structure.

[0054] A group of edge guide holes (7) are correspondingly opened at the diagonal positions of the reducer base (9), and a group of edge guide holes (7) is composed of three edge guide holes (7).

[0055] Preferably, the three edge guide holes (7) in the same group are equidistantly distributed around the positioning slot (8).

[0056] The anti-mis-installation assembly is composed of a mounting plate (2), a limiting fixing sleeve (4), a movable guide rod (5), an anti-mis-installation positioning column (6), a limiting ball (10), a ball mounting groove (11) and a guide limiting column (12).

[0057] The mounting plate (2) is placed in the mounting groove (3), and the anti-mistake positioning column (6) is placed on the mounting plate (2).

[0058] Preferably, the anti-mistake positioning column (6) is a triangular prism structure, the anti-mistake positioning column (6) is located in the middle of the mounting plate (2), and the anti-mistake positioning column (6) corresponds to the positioning slot (8).

[0059] One end of the anti-error positioning column (6) is connected to the mounting plate (2), and the other end extends out of the mounting plate (2). The guide positioning column is placed on the other end of the anti-error positioning column (6).

[0060] Preferably, the guide and positioning column is a triangular pyramid structure.

[0061] A group of ball mounting grooves (11) are correspondingly formed on three sides of the anti-mistake positioning column (6), and a group of ball mounting grooves (11) is composed of a plurality of ball mounting grooves (11).

[0062] Preferably, the plurality of ball mounting grooves (11) in the same group are equidistantly distributed along the axial direction of the anti-mistake positioning column (6).

[0063] The limiting ball (10) is rollably placed in the ball mounting groove (11).

[0064] Preferably, one third of the limiting ball (10) extends out of the ball mounting groove (11).

[0065] The anti-error positioning column (6) is inserted into the corresponding positioning groove (8), and the limiting ball (10) is in contact with the inner wall of the positioning groove (8).

[0066] Three limit fixing sleeves (4) are placed on the mounting fixing plate (2).

[0067] Preferably, a buffer rubber ring is sleeved on the limiting fixing sleeve (4).

[0068] The three position-limiting fixing sleeves (4) are equidistantly distributed around the anti-mistake positioning column (6) in the circumferential direction, and the three position-limiting fixing sleeves (4) correspond to the three edge guide holes (7) one by one.

[0069] One end of the movable guide rod (5) is detachably placed in the limit fixing sleeve (4).

[0070] Preferably, one end of the movable guide rod (5) is inserted or screwed into the limiting fixing sleeve (4), and the other end of the movable guide rod (5) is a conical structure.

[0071] Preferably, the length of the movable guide rod (5) is greater than the total length of the anti-mistake positioning column (6) and the guide limit column (12).

[0072] The limiting fixing sleeve (4) is inserted into the corresponding edge guide hole (7), and the buffer rubber ring is in contact with the inner wall of the edge guide hole (7);

[0073] Preferably, the limit ball (10) is made of austenitic stainless steel, which is stainless steel with austenite and ferrite structures each accounting for about half. This type of steel has the characteristics of both austenitic and ferritic stainless steels. Compared with ferritic stainless steel, it has higher plasticity and toughness, no room temperature brittleness, and significantly improved intergranular corrosion resistance and welding performance.

[0074] The present invention also relates to an anti-mis-assembly method for an assembly node anti-mis-assembly mechanism of a two-stage reducer, comprising the following steps:

[0075] 1) Use a lifting device to place the reducer case cover (1) above the reducer base (9);

[0076] 2) The hoisting personnel hold the reducer case cover (1) with their hands and adjust the position so that the movable guide rod (5) points to the corresponding edge guide hole (7);

[0077] Preferably, when adjusting the position of the reducer case cover (1), the reducer case cover (1) should be placed horizontally.

[0078] 3) lowering the reducer case cover (1) so that the movable guide rod (5) is inserted into the edge guide hole (7), thereby driving the limit fixing sleeve (4) to be inserted into the edge guide hole (7) for auxiliary positioning;

[0079] Preferably, the buffer rubber ring can make the limiting fixing sleeve (4) clamped in the edge guide hole (7) so as not to move;

[0080] 4) At the same time, the anti-error positioning column (6) together with the guide limit column (12) are inserted into the positioning groove (8), and the limit ball (10) on the anti-error positioning column (6) rolls in contact with the positioning groove (8) during the falling process, so that the position of the anti-error positioning column (6) is finely adjusted, so that the anti-error positioning column (6) is stably stuck in the positioning groove (8) and does not move;

[0081] 5) Remove the movable guide rod (5) from the limiting fixing sleeve (4);

[0082] 6) Use the mounting bolts to install the reducer case cover (1) on the reducer base (9);

[0083] The cross section of the positioning slot (8) is designed to be a triangular structure, which can limit the anti-misalignment positioning column (6) inserted therein so that it will not rotate, thereby preventing the reducer case cover (1) from being misaligned and affecting the connection stability of the reducer after installation;

[0084] The anti-mistake positioning column (6) is a triangular prism structure. The anti-mistake positioning column (6) and the positioning slot (8) are designed to correspond to each other and can be adapted to the positioning slot (8), so that when inserted into the positioning slot (8), it will not be displaced or rotated, thereby affecting the connection stability of the reducer after installation.

[0085] The guide positioning column is designed with a triangular pyramid structure, which can guide the anti-mistake positioning column (6) so that it can be smoothly inserted into the positioning groove (8) for limiting, thereby facilitating the subsequent installation of the reducer;

[0086] The design of the limit ball (10) being rollably placed in the ball installation groove (11) enables the anti-mistake positioning column (6) to roll in contact with the positioning groove (8) during the process of inserting the anti-mistake positioning column (6) into the positioning groove (8), thereby reducing the falling resistance and, at the same time, finely adjusting the position of the anti-mistake positioning column (6) so that the anti-mistake positioning column (6) is stably stuck in the positioning groove (8) and does not move, thereby preventing the connection stability of the reducer from being affected after installation;

[0087] The design that one third of the limiting ball (10) protrudes out of the ball installation groove (11) can fill the gap between the anti-mistake positioning column (6) and the positioning groove (8), so that the limiting ball (10) will not move in the positioning groove (8), thereby preventing the anti-mistake positioning column (6) from being offset or vibrating and displacing, thereby affecting the connection stability of the secondary reducer after installation;

[0088] The design of a buffer rubber ring sleeved on the limit fixing sleeve (4) can make the limit fixing sleeve (4) clamped in the edge guide hole (7) and prevent it from moving, thereby preventing the speed reducer case cover (1) from being misplaced and affecting installation;

[0089] The design in which one end of the movable guide rod (5) is plugged or screwed into the limiting fixing sleeve (4) can facilitate its removal after positioning, thereby preventing it from being vibrated and displaced during use after installation, thereby causing other assembly nodes to generate irregular lateral displacement forces and affecting the connection stability of the secondary reducer after installation;

[0090] The other end of the movable guide rod (5) is a conical structure, which can guide the movable guide rod (5) to facilitate its insertion into the edge guide hole (7) for auxiliary positioning, so that the anti-mistake positioning column (6) can be smoothly inserted into the positioning groove (8) to limit the reducer;

[0091] The design that the length of the movable guide rod (5) is greater than the total length of the anti-mistake positioning column (6) and the guide limit column (12) can facilitate the auxiliary positioning of the movable guide rod (5) first, and ensure that the anti-mistake positioning column (6) can be smoothly inserted into the positioning slot (8) to limit the reducer;

[0092] The anti-error positioning column (6) cooperates with the limiting ball (10) to fill the gap between the anti-error positioning column (6) and the positioning groove (8), thereby preventing the anti-error positioning column (6) from being offset or vibrated in the positioning groove (8), thereby affecting the connection stability of the secondary reducer after installation;

[0093] The two anti-misinstallation components on the diagonal sides of the reducer case cover (1) cooperate with each other to prevent the anti-misinstallation positioning column (6) from rotating in the positioning slot (8) to cause the reducer case cover (1) to be misplaced, thereby affecting the connection stability after installation;

[0094] The movable guide rod (5) cooperates with the edge guide hole (7) to assist in positioning, so that the error-proof positioning column (6) can be smoothly inserted into the positioning slot (8) to limit the reducer;

[0095] The purpose is to achieve the purpose of being able to fill the gap between the anti-error positioning column (6) and the positioning groove (8) through the limiting ball (10) on the anti-error positioning column (6), thereby preventing the anti-error positioning column (6) from being offset or vibrated in the positioning groove (8), thereby affecting the connection stability of the secondary reducer after installation.

[0096] It should be noted that, unless otherwise clearly specified and limited, the terms "placed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection method such as a folding connection, a rivet connection, a pin connection, a bonding connection and a welding connection, or a detachable connection method such as a threaded connection, a snap connection and a hinge connection, or an integral connection, or an electrical connection, or a direct connection, or an indirect connection through an intermediate medium, or the internal connection of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0097] The above embodiments are preferred embodiments of the present invention. In order to save space, the applicant has not added other embodiments, but this is not intended to limit the scope of the present invention. Any ordinary technician in the field can make some improvements without departing from the scope of the present invention, that is, all equivalent improvements made according to the present invention should be covered by the scope of the present invention.

Claims

1. An assembly node anti-misassembly mechanism for a two-stage reducer, characterized by: The invention comprises a main body component and an anti-misinstallation component, wherein the main body component comprises a reducer case cover, an installation slot, an edge guide hole, a positioning slot and a reducer base, the reducer case cover is placed on the reducer base, the reducer case cover is provided with an installation slot at a corresponding diagonal position, the reducer base is provided with a positioning slot at a corresponding diagonal position, a group of edge guide holes is provided at a corresponding diagonal position of the reducer base, a group of edge guide holes is composed of three edge guide holes, and the three edge guide holes in the same group are equidistantly distributed around the positioning slot in the circumference, the anti-misinstallation component comprises an installation fixing plate, a limiting fixing sleeve, a movable guide rod, an anti-misinstallation positioning column, a limiting ball, a ball installation slot and a guide limiting column, the installation fixing plate is placed in the installation slot, the anti-misinstallation positioning column is placed on the installation fixing plate, the anti-misinstallation positioning column is located in the middle of the installation fixing plate, one end of the anti-misinstallation positioning column is connected to the installation fixing plate, and the other end extends out of the installation fixing plate, The guide positioning column is placed on the other end of the anti-mistake positioning column, and a group of ball mounting grooves are correspondingly opened on the three side surfaces of the anti-mistake positioning column, and a group of the ball mounting grooves is composed of a plurality of ball mounting grooves. The plurality of the ball mounting grooves in the same group are equidistantly distributed along the axial direction of the anti-mistake positioning column, and the limit ball is rollably placed in the ball mounting groove, and the anti-mistake positioning column is inserted in the corresponding positioning groove, and the limit ball contacts the inner wall of the positioning groove, and three limit fixing sleeves are placed on the installation fixing plate, and the three limit fixing sleeves are equidistantly distributed around the anti-mistake positioning column circumferentially, and the three limit fixing sleeves correspond to the three edge guide holes one by one, and one end of the movable guide rod is detachably placed in the limit fixing sleeve, and the limit fixing sleeve is inserted in the corresponding edge guide hole, and a buffer rubber ring is sleeved on the limit fixing sleeve, which can make the limit fixing sleeve clamped in the edge guide hole and not move, and the buffer rubber ring contacts the inner wall of the edge guide hole.

2. The assembly node anti-misassembly mechanism for a two-stage reducer according to claim 1, characterized in that The cross section of the positioning through groove is a triangular structure, which can limit the anti-misalignment positioning column inserted therein so that it will not rotate, thereby preventing the reducer chassis cover from being misplaced.

3. The assembly node anti-misassembly mechanism for a two-stage reducer according to claim 1, characterized in that The anti-mistake positioning column is a triangular prism structure. The anti-mistake positioning column corresponds to the positioning slot and can adapt to the positioning slot so that it can be inserted into the positioning slot without displacement or rotation.

4. The assembly node anti-misassembly mechanism for a two-stage reducer according to claim 1, characterized in that The guide positioning column is a triangular pyramid structure, which can guide the anti-mistake positioning column so that it can be smoothly inserted into the positioning slot for limiting.

5. The assembly node anti-misassembly mechanism for a two-stage reducer according to claim 1, characterized in that One third of the limiting ball extends out of the ball installation groove, and can fill the gap between the anti-mistake positioning column and the positioning through groove, so that the limiting ball will not move in the positioning through groove.

6. The assembly node anti-misassembly mechanism for a two-stage reducer according to claim 1, characterized in that One end of the movable guide rod is inserted or screwed into the limiting fixing sleeve, which can facilitate its removal after positioning, preventing it from being vibrated and displaced during use after installation, thereby causing other assembly nodes to generate irregular lateral offset forces.

7. The assembly node anti-misassembly mechanism for a two-stage reducer according to claim 6, characterized in that The other end of the movable guide rod is a conical structure, which can guide the movable guide rod and facilitate its insertion into the edge guide hole for auxiliary positioning.

8. The assembly node anti-misassembly mechanism for a two-stage reducer according to claim 7, characterized in that The length of the movable guide rod is greater than the total length of the anti-error positioning column and the guide limit column, which can facilitate the movable guide rod to perform auxiliary positioning first, ensuring that the anti-error positioning column can be smoothly inserted into the positioning slot to limit the reducer.

9. The assembly node anti-misassembly mechanism for a two-stage reducer according to claim 1, characterized in that The anti-mis-assembly method of the assembly node anti-mis-assembly mechanism for the secondary reducer comprises the following steps: 1) Use lifting equipment to hang the reducer case cover above the reducer base; 2) The hoisting personnel hold the reducer case cover with their hands and adjust the position so that the movable guide rod points to the corresponding edge guide hole; 3) Lower the reducer case cover so that the movable guide rod is inserted into the edge guide hole, and then drives the limit fixing sleeve to be inserted into the edge guide hole for auxiliary positioning; 4) At the same time, the anti-error positioning column and the guide limit column are inserted into the positioning groove. The limit ball on the anti-error positioning column rolls and contacts the positioning groove during the falling process, and the position of the anti-error positioning column is fine-tuned so that the anti-error positioning column is stably stuck in the positioning groove and will not move; 5) Remove the movable guide rod from the limit fixing sleeve; 6) Use the mounting bolts to install the reducer case cover on the reducer base.

Images