Simply supported beam double-support structure speed reducer

Abstract

The utility model relates to the field of speed reducers, in particular to a simply supported beam speed reducer with a double-support structure. The simply supported beam double-support structure speed reducer comprises a speed reducer lower box body, a speed reducer upper box body and a speed reducer lower box body, and the speed reducer lower box body comprises a box arm and a main box body; the bearing seat is fixed at one end of the box arm; the self-aligning bearing is arranged on the inner wall of the inner ring of the bearing seat; the self-aligning roller bearing is arranged on the inner wall of the lower box body of the speed reducer; one end of the output gear shaft is arranged on the inner wall of the speed reducer lower box body, the other end of the output gear shaft is connected to the self-aligning bearing, the structure of the speed reducer lower box body is changed, the self-aligning roller bearing and the self-aligning bearing at the top end of the output shaft form a double-supporting structure, the overall size of the speed reducer is reduced, the weight is reduced, and the speed reducer is convenient to use. And the borne radial force is larger.

Description

Technical Field

[0001] The utility model relates to the field of locks, in particular to a reducer with a simply supported beam double-support structure. Background Art

[0002] GLW reducers are used in the field of engineering machinery rotation. The output gear shaft is meshed with the external teeth of the equipment base rotation support to make the equipment rotate. The output gear shaft of the GLW reducer is supported and fixed inside the lower housing of the reducer through tapered roller bearings and tapered roller bearings.

[0003] When tapered roller bearings and tapered roller bearings are used to fix and support the output gear shaft, the structure makes the radial force load on the output gear shaft relatively limited, which can easily cause the tapered roller bearings and tapered roller bearings to wear out over time. During the operation of the reducer, the high temperature of the tapered roller bearings can easily cause the oil seal to deform, greatly increasing the risk of oil leakage. Utility Model Content

[0004] (1) Technical issues to be solved

[0005] In order to overcome the problem that the radial force load borne by the output gear shaft is relatively limited due to the structure, it is easy to cause greater wear between the tapered roller bearings over time.

[0006] (2) Technical solution

[0007] Simply supported beam double support structure reducer, including:

[0008] The reducer lower housing comprises a housing arm and a main housing;

[0009] A bearing seat, the bearing seat being fixed at one end of the box arm;

[0010] A self-aligning bearing, wherein the self-aligning bearing is arranged on the inner wall of the inner ring of the bearing seat;

[0011] A spherical roller bearing, wherein the spherical roller bearing is arranged on the inner wall of the lower housing of the reducer;

[0012] An output gear shaft, one end of which is arranged on the inner wall of the lower housing of the reducer, and the other end of which is connected to a self-aligning bearing.

[0013] An oil seal is provided, wherein the outer surface of the output gear shaft is connected to the port of the lower housing of the reducer through an oil seal.

[0014] Furthermore, the output gear shaft includes an output tooth, an oil seal rod and a driving rod, one end of the output tooth is connected to the oil seal rod, one end of the oil seal rod is connected to one end of the driving rod, the other end of the output tooth is connected to the self-aligning bearing, the oil seal rod is connected to the oil seal, and the driving rod is connected to the self-aligning roller bearing.

[0015] Furthermore, the number of the spherical roller bearings is two groups, and the spherical roller bearings are tapered roller bearings, and further include locking nuts, and the locking nuts are used for the two tapered roller bearings to achieve a predetermined locking force.

[0016] Furthermore, it also includes a motor input power source and a reducer, and the input power source and the reducer are used to provide torque to the output gear shaft.

[0017] Furthermore, it also includes a large gear, which is connected to the output gear shaft.

[0018] Beneficial Effects

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] (1) The utility model changes the structure of the lower housing of the reducer, and the spherical roller bearing and the spherical bearing at the top of the output shaft form a double support structure, so that the overall size of the reducer becomes smaller, the weight becomes lighter, and the radial force it bears is greater.

[0021] (2) The self-aligning bearing of the utility model replaces the tapered roller bearing, which has the effect of reducing costs.

[0022] (3) The utility model changes the output gear shaft into a semi-wrapped state through the box arm and the main box body, which can play a certain dust-proof role. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the utility model;

[0024] Figure 2 This is a schematic diagram of the structure of the lower housing of the reducer of the utility model;

[0025] Figure 3 It is a schematic diagram of the structure of the output gear shaft in the utility model;

[0026] Figure 4 This is the structural diagram of the old GLW reducer;

[0027] Figure 5 This is a schematic diagram of the structure of the box in the old GLW reducer;

[0028] Figure 6 This is a schematic diagram of the structure of the output gear shaft in the old GLW reducer.

[0029] Explanation of the reference numerals in the accompanying drawings: 1. reducer lower housing; 2. bearing seat; 3. self-aligning bearing; 4. self-aligning roller bearing; 5. output gear shaft; 6. oil seal; 1a. housing arm; 1b. main housing; 5a. output gear; 5b. oil seal rod; 5c. drive rod. DETAILED DESCRIPTION

[0030] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0031] Embodiment 1:

[0032] See also Figure 1-3 The utility model provides an embodiment: a simply supported beam double support structure reducer, comprising:

[0033] The reducer lower housing 1 comprises a housing arm 1a and a main housing 1b;

[0034] A bearing seat 2, wherein the bearing seat 2 is fixed to one end of the box arm 1a;

[0035] A self-aligning bearing 3, wherein the self-aligning bearing 3 is arranged on the inner wall of the inner ring of the bearing seat 2;

[0036] A spherical roller bearing 4, wherein the spherical roller bearing 4 is arranged on the inner wall of the reducer lower housing 1;

[0037] An output gear shaft 5 , one end of which is arranged on the inner wall of the reducer lower housing 1 , and the other end of which is connected to the self-aligning bearing 3 .

[0038] An oil seal 6 is provided, wherein the outer surface of the output gear shaft 5 is connected to the port of the reducer lower housing 1 through the oil seal 6 .

[0039] The utility model modifies the installation structure of the output gear shaft 5a, re-modifies the output box structure, fixes the output gear shaft 5 into the box, opens the side of the box to allow the gear output, and fixes the bearings at both ends of the gear, so that the gear shaft can withstand greater radial force and optimizes the overall weight and volume from a structural perspective.

[0040] Furthermore, the output gear shaft 5 includes an output tooth 5a, an oil seal rod 5b and a driving rod 5c, one end of the output tooth 5a is connected to the oil seal rod 5b, one end of the oil seal rod 5b is connected to one end of the driving rod 5c, the other end of the output tooth 5a is connected to the self-aligning bearing 3, the oil seal rod 5b is connected to the oil seal 6, and the driving rod 5c is connected to the self-aligning roller bearing 4.

[0041] Furthermore, the number of the spherical roller bearings 4 is two groups, and the spherical roller bearings 4 are tapered roller bearings, and further include locking nuts, and the locking nuts are used for the two tapered roller bearings to achieve a predetermined locking force.

[0042] Furthermore, it also includes a motor input power source and a reducer, and the input power source and the reducer are used to provide torque to the output gear shaft 5.

[0043] Furthermore, it also includes a large gear, which is connected to the output gear shaft 5. The large gear is an external gear, and the output gear shaft 5 provides torque for the large gear.

[0044] Working principle: The motor inputs the power source, and the torque is increased through the three-stage planetary reduction of the reducer. Finally, the output tooth 5a meshes with the customer's large gear for transmission. In addition to the torque, there is also a large radial force during the meshing process of the gears. The original plan has a fixed output box and a single-arm structure output for the gear shaft. In order to ensure that it can meet the large radial force, only a pair of tapered roller bearings can be used to fix the output gear shaft, and the two tapered roller bearings are locked with a locking nut to achieve the predetermined locking force, such as Figure 4-6 shown.

[0045] The new solution modifies the installation structure of the output gear and re-modifies the output box structure. The output gear shaft is fixed to the box, and the side opening of the box allows the gear output. The bearings at both ends of the gear are fixed, so that the gear shaft can withstand greater radial force and the overall weight and volume are optimized from a structural perspective.

[0046] Through the above steps, if Figure 1-6 As shown, the new scheme changes the structure of the lower housing 1 of the reducer. The spherical roller bearing 4 and the spherical bearing 3 at the top of the output shaft form a double support structure. The overall size of the reducer is reduced, the weight is reduced, and the radial force it bears is greater. At the same time, the spherical bearing 3 replaces the tapered roller bearing, which has a cost-reducing effect. The output gear shaft 5 is semi-wrapped through the housing arm 1a and the main housing 1b, which can play a certain dust-proof role.

[0047] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. Simply supported beam double support structure reducer, characterized in that: include: A reducer lower housing (1), the reducer lower housing (1) comprising a housing arm (1a) and a main housing (1b); A bearing seat (2), wherein the bearing seat (2) is fixed to one end of the box arm (1a); A self-aligning bearing (3), wherein the self-aligning bearing (3) is arranged on the inner wall of the inner ring of the bearing seat (2); A spherical roller bearing (4), wherein the spherical roller bearing (4) is arranged on the inner wall of the reducer lower housing (1); An output gear shaft (5), one end of the output gear shaft (5) is arranged on the inner wall of the reducer lower housing (1), and the other end of the output gear shaft (5) is connected to a self-aligning bearing (3); An oil seal (6), wherein the outer surface of the output gear shaft (5) is connected to the port of the reducer lower housing (1) via the oil seal (6).

2. The simply supported beam double support structure reducer according to claim 1, characterized in that: The output gear shaft (5) comprises an output tooth (5a), an oil seal rod (5b) and a driving rod (5c); one end of the output tooth (5a) is connected to the oil seal rod (5b); one end of the oil seal rod (5b) is connected to one end of the driving rod (5c); the other end of the output tooth (5a) is connected to the self-aligning bearing (3); the oil seal rod (5b) is connected to the oil seal (6); and the driving rod (5c) is connected to the self-aligning roller bearing (4).

3. The simply supported beam double support structure reducer according to claim 1, characterized in that: The number of the spherical roller bearings (4) is two groups. The spherical roller bearings (4) are tapered roller bearings and further include locking nuts. The locking nuts are used to achieve a predetermined locking force for the two tapered roller bearings.

4. The simply supported beam double support structure reducer according to any one of claims 1 to 3, characterized in that: It also includes a motor input power source and a reducer, and the input power source and the reducer are used to provide torque to the output gear shaft (5).

5. The simply supported beam double support structure reducer according to any one of claims 1 to 3, characterized in that: It also comprises a large gear, which is connected to the output gear shaft (5).

Images