Stable clamping structure for planetary reducer

Abstract

The utility model relates to the technical field of speed reducers, in particular to a stable clamping structure for a planetary speed reducer. Comprising a supporting seat, a fixing frame, a supporting plate, a first clamping plate, a two-way threaded rod, a planetary reducer and the like. A fixing frame is arranged on the upper side of the supporting seat and is through left and right, a supporting plate is arranged in the fixing frame, a bidirectional threaded rod is rotationally arranged on the lower portion of the fixing frame, the front end and the rear end of the bidirectional threaded rod are in threaded connection with first clamping plates, and a planetary reducer is placed on the supporting plate and located between the two first clamping plates. A limiting frame is slidably arranged at the left end of the fixing frame, and a linkage mechanism is arranged on the fixing frame. The two-way threaded rod drives the double clamping plates to move oppositely, real-time synchronization of clamping action and movement of the limiting frame is achieved in cooperation with transmission of the linkage mechanism, it is guaranteed that the planetary reducer body is evenly clamped, an output shaft of the planetary reducer body is accurately positioned into a limiting hole, and overall stability is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a reduction gear technical field especially relates to a kind of firm clamping structure for planetary reducer. BACKGROUND

[0002] Planetary reducer is the common speed reducer in industrial transmission system, in industrial applications such as robot joint drive, rotary table transmission and precision rotary equipment, planetary reducer needs to be connected with base through clamping structure, and fixing mode is directly related to the precision and life of entire transmission system.

[0003] The output shaft of planetary reducer needs accurate position control to avoid deviation, however, the existing clamping structure fails to provide effective method to ensure accurate positioning of output shaft, when planetary reducer operates, periodic deviation is prone to occur in output shaft due to axial load or vibration, resulting in cumulative error of end effector (such as rotary table, mechanical arm). SUMMARY

[0004] In order to overcome the shortcomings that the existing clamping structure lacks accurate positioning of output shaft, the utility model provides a kind of firm clamping structure for planetary reducer.

[0005] The technical scheme of the utility model is: a kind of firm clamping structure for planetary reducer, including support seat, fixed frame, support plate, first clamping plate, two-way threaded rod, planetary reducer, linkage mechanism and limiting frame, fixed frame is equipped on the upside of support seat, and fixed frame is through left and right, and support plate is equipped in fixed frame, and two-way threaded rod is rotatably equipped in the lower part of fixed frame, and the front and rear ends of two-way threaded rod are all screw-connected with first clamping plate, and planetary reducer is placed on support plate, and planetary reducer is located between two first clamping plates, and limiting frame is slidably equipped in the left end of fixed frame, and linkage mechanism is equipped on fixed frame, and linkage mechanism links two-way threaded rod and limiting frame, and limiting frame is opened with limiting hole in middle part, and the size of limiting hole is adapted to the output shaft of planetary reducer.

[0006] Further explanation, it also includes guide rod, and the side opposite to two first clamping plates is equipped with guide rod, and guide rod is slidably connected with fixed frame.

[0007] Further explanation, linkage mechanism includes gear, rack and connecting rod, gear is equipped at the front and rear ends of two-way threaded rod, rack is slidably equipped on the front and rear sides of fixed frame, gear is engaged with rack, rack is connected with connecting rod, and connecting rod is connected with limiting frame.

[0008] Further explanation, it also includes second clamping plate and screw rod, and screw rod is screw-connected on the upside of fixed frame, and second clamping plate is rotatably equipped on the downside of screw rod.

[0009] Further explanation, the side close to planetary reducer of limiting hole is equipped with circular arc chamfer.

[0010] Further illustrate, the screw upper end and the bidirectional screw rod front and back ends are equipped with the rocking rod.

[0011] The beneficial effects of the utility model are: 1, the utility model discloses a bidirectional screw rod drives the opposite movement of double clamping plates, and the transmission of linkage mechanism is cooperated, realizes the real-time synchronization of clamping action and the movement of limiting frame, guarantees that the planetary reducer body is evenly clamped, and makes its output shaft accurate positioning to the limiting hole, improves overall stability.

[0012] 2, the utility model discloses a guide rod restricts that clamping plate only makes linear motion, effectively avoids the inclination or jamming phenomenon caused by uneven stress, ensures that the clamping process is stable and reliable, and the second clamping plate driven by the screw rod applies vertical direction pressure, and limits the movement of planetary reducer in the up-down direction. DRAWINGS

[0013] Figure 1 It is the three-dimensional structure schematic view of bidirectional screw rod, screw and connecting rod and other components of the utility model.

[0014] Figure 2 It is the three-dimensional structure schematic view of gear, rack and guide rod and other components of the utility model.

[0015] Figure 3 It is the three-dimensional structure schematic view of clamping plate, limiting frame and support seat and other components of the utility model.

[0016] Figure 4 It is the three-dimensional structure schematic view of bidirectional screw rod, clamping plate and limiting frame of the utility model.

[0017] Figure 5 It is the three-dimensional structure schematic view of connecting rod, limiting frame and limiting hole and other components of the utility model.

[0018] The marks of each component in the drawings are as follows: 1: support seat, 2: fixed frame, 21: support plate, 3: first clamping plate, 31: guide rod, 4: bidirectional screw rod, 41: gear, 5: planetary reducer, 6: second clamping plate, 7: screw, 8: rack, 9: connecting rod, 10: limiting frame, 101: limiting hole. PREFERRED EMBODIMENT

[0019] The above scheme is further illustrated in combination with specific embodiments. It should be understood that these embodiments are used to illustrate the present application and are not limited to the scope of the present application. The implementation conditions adopted in the embodiments can be further adjusted according to the specific conditions of the manufacturer, and the implementation conditions not marked are usually the conditions in the conventional experiment.

[0020] A stable clamping structure for planetary reducer, as shown in Figures 1-5As shown, including support seat 1, fixed frame 2, support plate 21, first clamping plate 3, two-way threaded rod 4, planetary reducer 5, linkage mechanism and limiting frame 10, support seat 1 upper side is equipped with fixed frame 2, fixed frame 2 left and right through, fixed frame 2 is equipped with support plate 21, fixed frame 2 lower part is rotatably provided with two-way threaded rod 4, two-way threaded rod 4 is located below support plate 21, two-way threaded rod 4 front and rear ends are all screw connected with first clamping plate 3, first clamping plate 3 main body is located above support plate 21, support plate 21 is placed with planetary reducer 5, planetary reducer 5 is located between two first clamping plates 3, fixed frame 2 left end is slidably provided with limiting frame 10, fixed frame 2 is equipped with linkage mechanism, linkage mechanism links two-way threaded rod 4 and limiting frame 10, limiting frame 10 middle part is opened with limiting hole 101, the size of limiting hole 101 is adapted to the output shaft of planetary reducer 5.

[0021] When fixed, planetary reducer 5 is placed above support plate 21 in fixed frame 2, rotate two-way threaded rod 4, two-way threaded rod 4 drives two first clamping plates 3 to approach each other, and clamps planetary reducer 5, two-way threaded rod 4 drives limiting frame 10 to move through linkage mechanism, the output shaft of planetary reducer 5 enters limiting hole 101 in limiting frame 10, limiting frame 10 limits the output shaft of planetary reducer 5, so that it does not produce deviation.

[0022] As shown in Figures 1-4 It also includes guide rod 31, the opposite side of two first clamping plates 3 is equipped with guide rod 31, guide rod 31 is slidably connected with fixed frame 2, guide rod 31 ensures that first clamping plate 3 only makes linear motion under the drive of two-way threaded rod 4, avoids first clamping plate 3 to tilt or jam due to uneven force during clamping process.

[0023] As shown in Figures 1-4 The linkage mechanism includes gear 41, rack 8 and connecting rod 9, both ends of two-way threaded rod 4 are provided with gear 41, both sides of fixed frame 2 are slidably provided with rack 8, gear 41 is engaged with rack 8, rack 8 is connected with connecting rod 9, connecting rod 9 is connected with limiting frame 10, the rotary motion of two-way threaded rod 4 is converted into the linear motion of limiting frame 10 through gear 41 and rack 8 transmission, realizes the synchronous linkage of clamping action and output shaft limitation, along with the approach of first clamping plate 3, limiting frame 10 also moves, and finally makes the output shaft of planetary reducer 5 accurately enter limiting hole 101.

[0024] As shown in Figure 1 And Figure 2 It also includes second clamping plate 6 and screw rod 7, screw rod 7 is screw connected with the upper side of fixed frame 2, second clamping plate 6 is rotatably provided with the lower side of screw rod 7, the height of second clamping plate 6 can be adjusted by rotating screw rod 7, so that it closely fits the top of planetary reducer 5, thereby effectively limiting the movement in the up-down direction.

[0025] The limiting hole 101 is provided with a circular arc chamfer near one side of the planetary reducer 5, so as to reduce the friction resistance when the output shaft is inserted.

[0026] The upper end of the screw rod 7 and the front and rear ends of the bidirectional threaded rod 4 are provided with rocking rods, so as to facilitate the operator to twist the bidirectional threaded rod 4 and the screw rod 7 and perform clamping operation.

[0027] The above embodiment is only a preferred embodiment of the present application, and is not used to limit the scope of the present application, so that equivalent changes made according to the content of the present application claims should be included in the scope of the present application claims.

Claims

1. A stable clamping structure for a planetary reducer, comprising a support base (1), a fixed frame (2) and a support plate (21), the upper side of the support base (1) being provided with the fixed frame (2), the fixed frame (2) being through left and right, and the fixed frame (2) being provided with the support plate (21) inside, characterized in that, The utility model also includes first clamping plate (3), two-way threaded rod (4), planetary reducer (5), linkage and limiting frame (10), the lower part of fixed frame (2) is rotatable two-way threaded rod (4), both ends of two-way threaded rod (4) are threadedly connected with first clamping plate (3), planetary reducer (5) is placed on support plate (21), and planetary reducer (5) is located between two first clamping plates (3), limiting frame (10) is slidably arranged on the left end of fixed frame (2), linkage is arranged on fixed frame (2), linkage links two-way threaded rod (4) and limiting frame (10), and limiting hole (101) is formed in the middle part of limiting frame (10), and the size of limiting hole (101) is adapted to the output shaft of planetary reducer (5).

2. The stable clamping structure for a planetary speed reducer according to claim 1, wherein The utility model also includes guide rod (31), and the opposite side of two first clamping plates (3) is equipped with guide rod (31), and guide rod (31) is slidably connected with fixed frame (2).

3. The secure clamping structure for a planetary speed reducer according to claim 2, wherein The linkage includes gear (41), rack (8) and connecting rod (9), both ends of two-way threaded rod (4) are equipped with gear (41), both sides of fixed frame (2) are slidably equipped with rack (8), gear (41) is engaged with rack (8), rack (8) is connected with connecting rod (9), and connecting rod (9) is connected with limiting frame (10).

4. The secure clamping structure for a planetary speed reducer according to claim 3, wherein The utility model also includes second clamping plate (6) and screw rod (7), and screw rod (7) is threadedly connected with the upside of fixed frame (2), and second clamping plate (6) is rotatably arranged on the downside of screw rod (7).

5. The secure clamping structure for a planetary speed reducer according to claim 4, wherein The side, close to planetary reducer (5), of limiting hole (101) is equipped with circular arc chamfer.

6. A secure clamping structure for a planetary reduction machine as defined in claim 5, wherein The upper end of screw rod (7) and both ends of two-way threaded rod (4) are equipped with swing rod.

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