CN110030284A - A kind of keyless set of fluid pressure type - Google Patents

Abstract

A hydraulic keyless coupling sleeve belongs to the technical field of keyless coupling. The characteristics are: the shaft sleeve is sleeved on the transmission shaft, the inner ring is sleeved outside the shaft sleeve, the outer ring is sleeved outside the inner ring, the joint surface is a conical surface, and a sealing ring is arranged between the joint surfaces; the left end of the inner ring is provided with a boss, The left end of the outer ring is made with a concave step, the end of the inner and outer ring conical surfaces is provided with a second high pressure oil chamber, and a displacement sensor is installed between the inner ring boss and the outer ring concave step; the fixing nut is fitted on the right end of the inner ring through a screw pair, and its left end is A first high-pressure oil chamber is formed between the surface of the outer ring and the right end surface of the outer ring; the locking nut is sleeved on the outside of the fixed nut through a threaded pair, and its left end surface is in conflict with the right end surface of the outer ring; The oil injection holes are respectively communicated with the first and second high-pressure oil chambers; the first and second threaded holes are respectively formed on the right end surfaces of the fixing nut and the locking nut. The advantage is that the coupling sleeve is loaded and unloaded by controlling the high-pressure oil, which reduces manpower, saves time and improves production efficiency.

Description

A hydraulic keyless coupling sleeve

technical field

The invention belongs to the technical field of keyless connection, in particular to a hydraulic keyless connection sleeve.

Background technique

The keyless coupling sleeve is a component used to connect the mechanical transmission components in the mechanical transmission system. It plays the role of transmitting torque and is widely used in wind power generation, metallurgical machinery, new energy electric vehicles, industrial robots and other fields. At present, the expansion sleeves commonly used at home and abroad are pure mechanical keyless coupling sleeves. The disadvantages of this purely mechanical keyless coupling sleeve are: complex assembly, difficult disassembly, complicated steps, easy damage to parts, a large consumption of manpower, material and financial resources, and low efficiency.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a hydraulic keyless coupling sleeve, which can effectively overcome the shortcomings of the prior art.

The present invention is realized in this way: as shown in Figure 1, it is characterized in that: the shaft sleeve 2 is sleeved on the transmission shaft 1, the inner ring 4 is sleeved on the outside of the shaft sleeve 2, the outer ring 5 is sleeved on the outside of the inner ring 4, and its joint surface It is a conical surface, and a sealing ring is installed between the joint surfaces; the left end of the inner ring 4 is made with a boss 20, the left end of the outer ring 5 is made with a concave step 21, and the outer ring 5 and the end of the inner ring 4 are provided with a second high-pressure oil The cavity 15, the displacement sensor 3 is installed between the boss 20 and the concave step 21; the fixing nut 6 is fitted on the right end of the inner ring 4 through the first thread pair 8, and the left end face and the right end face of the outer ring 5 are formed between the The first high pressure oil chamber 14; the locking nut 7 is sleeved on the outside of the fixed nut 6 through the second thread pair 9, and its left end face is in conflict with the right end face of the outer ring 5; 1. The second oil injection holes 12, 13, the first and second oil injection holes 12, 13 are respectively communicated with the first and second high pressure oil chambers 14, 15; the right end surfaces of the fixing nut 6 and the locking nut 7 are respectively First and second threaded holes 10 and 11 for disassembly are made.

The advantages and positive effects of the present invention are that the method of injecting high-pressure oil into the high-pressure oil cavity is used to assemble and disassemble the keyless coupling sleeve, so that the entire disassembly and assembly process is simpler, and compared with the traditional disassembly and assembly method, the Efficiency, save time, reduce labor consumption, and reduce damage to parts.

Description of drawings

Figure 1 Axial sectional view of the present invention

Figure 2 Enlarged view of part A in Figure 1

Fig. 3 Right side half sectional view of Fig. 1

Figure 1 - drive shaft

2—shaft sleeve

3—Displacement sensor

4—inner ring, 5—outer ring

6—fixing nut

7—Lock nut

8—The first thread pair

9—Second thread pair

10—The first threaded hole

11—Second threaded hole

12—the first oil injection hole, 13—the second oil injection hole

14—the first high pressure oil chamber, 15—the second high pressure oil chamber

16, 17, 18, 19 - sealing ring

20—Inner ring boss

21—Outer ring concave steps.

The specific implementation method:

As shown in Figure 1-3, when it is necessary to assemble the hydraulic keyless coupling sleeve on the transmission shaft 1, first inject high-pressure oil into the first high-pressure oil chamber 14 through the first oil injection hole 12, because the fixed nut 6 and the There is a threaded connection between the inner ring 4, so the oil pressure will push the outer ring 5 to move to the left along the conical surface, forming an interference fit with the inner ring 4, so that the inner ring 4 and the shaft sleeve 2, the shaft sleeve 2 and the transmission shaft 1 A firm connection is achieved between them to achieve the effect of transmitting torque. It is detected by the displacement sensor 3 that after the end faces of the inner and outer rings are flush, tighten the locking nut 7 to fix the position of the outer ring, then pump out the high-pressure oil, seal the oil injection hole, and the assembly is completed.

When it is necessary to disassemble the hydraulic keyless coupling sleeve, first inject high-pressure oil into the first high-pressure oil chamber 14 through the first oil injection hole 12, detect the rightward movement of the outer ring 5 by the displacement sensor 3, and then remove the locking nut 7. Next, the high-pressure oil in the first high-pressure oil chamber 14 is removed, and then the high-pressure oil is injected into the second high-pressure oil chamber 15 through the second oil injection hole 13, so that the outer ring 5 is moved to the left to the initial position, so as to connect the sleeve without a key The specific pressure between the joint surfaces of the cylinders disappears, the high-pressure oil is pumped out, the oil injection hole is sealed, and the disassembly is completed.

Claims (1)

1. a kind of keyless set of fluid pressure type, it is characterized in that: axle sleeve (2) is sleeved on transmission shaft (1), inner ring (4) is sleeved on axis It covers outside (2), outer ring (5) is sleeved on outside inner ring (4), and faying face is circular conical surface, is equipped with sealing ring between faying face；Inner ring (4) left end is formed with boss (20), and outer ring (5) left end is formed with concave station rank (21), between outer ring (5) and the end of inner ring (4) circular conical surface Equipped with the second high-voltage oil cavity (15), displacement sensor (3) are installed between boss (20) and concave station rank (21)；Hold-doun nut (6) It is sleeved on the right part of inner ring (4) by the first screw thread pair (8), forms first between left side and the right side of outer ring (5) High-voltage oil cavity (14)；Lock nut (7) is sleeved on the outsides of hold-doun nut (6) by the second screw thread pair (9), left side and outer The right side of ring (5) is inconsistent；It is formed respectively with the first, second oil filler point (12), (13) on the periphery of outer ring (5), first, Two oil filler points (12), (13) are connected to the first, second high-voltage oil cavity (14), (15) respectively；Hold-doun nut (6) and lock nut (7) it is formed respectively on right side for the first, second threaded hole (10) of disassembly, (11).