Coupling with adjusting chamber

Abstract

The utility model relates to the technical field of couplings, and discloses a coupling with an adjusting chamber, which comprises a coupling body, the front end and the rear end of the coupling body are respectively connected with a first coupling head and a second coupling head in an embedded manner through a first embedded component and a second embedded component which are vertically arranged; key groove holes are formed in the axis of the first coupler head and the axis of the second coupler head correspondingly, an adjusting cavity is formed in the axis of the coupler body, and a shaft penetrating through the key groove holes can slide in the adjusting cavity. According to the coupler with the adjusting cavity, on the basis that key groove holes in the axes of coupler heads at the front end and the rear end are adopted to restrain shafts at the two ends, the long adjusting cavity is arranged on a coupler body, the long adjusting cavity is formed in the axis, and the inner side wall of the adjusting cavity is connected with two sets of distance-adjustable limiting pieces in a sliding mode. The coupling can adapt to shafts with different lengths at the two ends and prevent the shafts from moving front and back, so that the shafts are stably installed in the coupling, and radial displacement of the two shafts can be prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of couplings, and specifically to a coupling with an adjustment chamber. Background Technique

[0002] A coupling is a mechanical part used to connect two shafts (the driving shaft and the driven shaft) in different mechanisms so that they rotate together to transmit torque.

[0003] The coupling with an adjustment chamber is disclosed in the patent number CN202323011741.3. An adjustment chamber is arranged inside the connecting main pipe, so that one end of the hexagonal shaft can extend into the adjustment chamber. When the size of the lifting table (the direction where the coupling is located) changes, the end of the hexagonal shaft can move along the axial direction of the adjustment chamber, so as to adapt to the lifting table of this size. This solution enables the hexagonal shaft and the coupling to adapt to various specifications of lifting tables without changing the size.

[0004] For the coupling with an adjustment chamber disclosed in the above patent, the length of the adjustment chamber is fixed and there is no adjustable limiting component inside. The two ends of the coupling are tightened by a locking cover to deform the locking end of the sleeve so as to fasten the hexagonal shaft. The shaft is constrained by friction. When the two ends of the shaft rotate at high speed and the torque between the shafts is large, radial displacement and shedding are likely to occur, and the two ends of the shaft are likely to move back and forth in the adjustment chamber of the coupling. Content of the Utility Model

[0005] The purpose of the utility model is to provide a coupling with an adjustment chamber. On the basis of restricting the two ends of the shaft by the keyway holes at the centers of the coupling heads at the front and rear ends of the coupling body disclosed by the utility model, the coupling body is provided with a relatively long adjustment chamber with a long opening at the center. Two groups of adjustable limiting pieces are slidably connected to the inner side wall of the adjustment chamber, which can adapt to shafts of different lengths at both ends and prevent the shaft from moving back and forth, so that the shaft is stably installed in the coupling and can prevent the radial displacement of the two shafts, so as to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A coupling with an adjustment chamber, including a coupling body, the front and rear ends of the coupling body are respectively fitted and connected with a first coupling head and a second coupling head through a vertically arranged first fitting component and a second fitting component. Keyway holes are opened at the centers of the first coupling head and the second coupling head. An adjustment chamber is opened at the center of the coupling body, and a shaft passing through the keyway hole can slide in the adjustment chamber. Limiting pieces are slidably connected to the front and rear ends of the inner side wall of the adjustment chamber. The outer side walls of the limiting pieces are slidably connected to the inner side wall of the adjustment chamber through sliding components penetrating out of the coupling body. The parts of the two groups of sliding components penetrating out of the coupling body are limited by a threaded limiting component.

[0007] Preferably, the first fitting component includes a first fitting block group fixedly connected to the front end of the coupling body, and a first fitting groove group for fitting the first fitting block group is provided on the surface of the first coupling head seat.

[0008] Preferably, the second fitting component includes a second fitting block group fixedly connected to the rear end of the coupling body and perpendicular to the first fitting block group, and a second fitting groove group for fitting the second fitting block group is provided on the surface of the second coupling head seat.

[0009] Preferably, the sliding component includes three adjustment sliding grooves circumferentially and equidistantly arrayed on the surface of the coupling body, and adjustment sliding strips are slidably connected to both the front and rear ends of the inner side walls of the three adjustment sliding grooves.

[0010] Preferably, a round hole is provided at the head of the adjustment sliding strip, and an adjustment bolt is slidably connected to the inner side wall of the round hole. Two adjustment nuts are threadedly connected to both the front and rear ends of the adjustment bolt, and the two adjustment nuts at both ends respectively clamp the adjustment sliding strips at both ends.

[0011] Preferably, a limiting piece is fixedly connected to the root of the adjustment sliding strip.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] Based on the keyway holes at the axles of the coupling heads at both the front and rear ends to constrain the two shafts, the coupling body of the coupling with an adjustment chamber disclosed in the present utility model is relatively long and a long adjustment chamber is provided at the axle center. Two groups of adjustable limiting pieces are slidably connected to the inner side wall of the adjustment chamber, which can adapt to shafts of different lengths at both ends and prevent the shafts from moving forward and backward, enabling the shafts to be stably installed in the coupling and preventing radial displacement of the two shafts. This solves the problems that the length of the adjustment chamber of the coupling with an adjustment chamber disclosed in the above patent is fixed and there is no adjustable limiting component inside, and the two ends of the coupling are tightened by screwing the locking covers to deform the locking ends of the sleeves to tighten the hexagonal shafts, and the shafts are constrained by friction. When the two shafts rotate at high speed and the torque between the shafts is large, radial displacement and detachment are likely to occur, and the two shafts are likely to move forward and backward in the adjustment chamber of the coupling. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is an exploded structural schematic diagram of the present utility model;

[0015] Figure 2 is an overall structural schematic diagram of the present utility model;

[0016] Figure 3 is Figure 2 the structural schematic diagram at A in

[0017] Figure 4 is a cross-sectional structural schematic diagram of the present utility model.

[0018] In the figure: 1, the first coupling head; 2, the first set of fitting grooves; 3, the coupling body; 4, the first set of fitting blocks; 5, the second set of fitting blocks; 6, the second set of fitting grooves; 7, the second coupling head; 8, the keyway hole; 9, the adjustment chute; 10, the adjustment slide bar; 11, the adjustment bolt; 12, the adjustment nut; 13, the limit piece; 14, the adjustment chamber. Specific embodiments

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Please refer to Figures 1-4 , a coupling with an adjustment chamber shown in the figure, including a coupling body 3. The front and rear ends of the coupling body 3 are respectively fitted and connected with a first coupling head 1 and a second coupling head 7 through a vertically arranged first fitting component and a second fitting component. Keyway holes 8 are provided at the axles of the first coupling head 1 and the second coupling head 7. An adjustment chamber 14 is provided at the axle center of the coupling body 3, and a shaft passing through the keyway hole 8 can slide in the adjustment chamber 14. Limit pieces 13 are slidably arranged at the front and rear ends of the inner side wall of the adjustment chamber 14. The outer side walls of the limit pieces 13 are slidably connected to the inner side wall of the adjustment chamber 14 through sliding components penetrating through the coupling body 3. The parts of the two sets of sliding components penetrating outside the coupling body 3 are limited by a threaded limit component. On the basis of restricting the shafts at both ends by the keyway holes 8 at the axles of the coupling heads at both ends, the coupling body 3 of the coupling with an adjustment chamber 14 disclosed in the present invention is set to be relatively long and an adjustment chamber 14 with a long length is provided at the axle center. Two adjustable limit pieces 13 are slidably connected to the inner side wall of the adjustment chamber 14, which can adapt to shafts of different lengths at both ends and prevent the shafts from moving back and forth, so that the shafts are stably installed in the coupling and can prevent the radial displacement of the two shafts.

[0021] Further, the first fitting component includes a first fitting block group 4 fixedly connected to the front end of the coupling body 3. A first fitting groove group 2 for fitting the first fitting block group 4 is provided on the surface of the first coupling head 1 seat, which facilitates assembly. Further, the second fitting component includes a second fitting block group 5 fixedly connected to the rear end of the coupling body 3 and perpendicular to the first fitting block group 4. A second fitting groove group 6 for fitting the second fitting block group 5 is provided on the surface of the second coupling head 7 seat, which facilitates fitting. Further, the sliding component includes three groups of adjusting chutes 9 circumferentially and equidistantly arrayed on the surface of the coupling body 3. The inner side walls of the three groups of adjusting chutes 9 are slidably connected to adjusting slide bars 10 at both ends, which facilitates sliding. Further, a round hole is provided at the head of the adjusting slide bar 10, and an adjusting bolt 11 is slidably connected to the inner side wall of the round hole. Two adjusting nuts 12 are threadedly connected to both ends of the adjusting bolt 11. The two adjusting nuts 12 at both ends respectively clamp the adjusting slide bars 10 at both ends, which facilitates adjusting the relative position of the adjusting slide bars 10. Further, a limiting piece 13 is fixedly connected to the root of the adjusting slide bar 10, which facilitates sliding the limiting piece 13.

[0022] In this solution, when in use, on the basis of the keyway holes 8 at the axles of the coupling heads at both ends of the coupling disclosed by the present utility model with the adjusting chamber 14 restricting the shafts at both ends, the coupling body 3 is set to be relatively long and a long adjusting chamber 14 is provided at the axis. Two groups of adjustable limiting pieces 13 are slidably connected to the inner side wall of the adjusting chamber 14, which can adapt to shafts of different lengths at both ends and prevent the shafts from moving back and forth, so that the shafts are stably installed in the coupling and can prevent the radial displacement of the two shafts. First, the shafts at both ends are respectively inserted into the keyway holes 8 of the first coupling head 1 and the second coupling head 7 and then into the adjusting chamber 14 of the coupling body 3. According to the lengths of the shafts at both ends extending into the adjusting chamber 14, loosen the nuts and hold the adjusting slide bars 10 to slide in the adjusting chutes 9 so that the limiting pieces 13 at both ends respectively abut against the shaft heads at both ends. Then tighten the nuts to limit the adjusting slide bars 10 with the nuts. The shafts are inserted into the keyway holes 8, effectively preventing the radial displacement and falling off of the shafts. And the limiting pieces 13 at both ends respectively abut against the shaft heads at both ends, further effectively preventing the shafts from sliding randomly along the adjusting chamber 14, and having a long service life.

[0023] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or sequence between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0024] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A coupling with an adjustment chamber, comprising a coupling body (3), wherein the front and rear ends of the coupling body (3) are respectively connected to a first coupling head (1) and a second coupling head (7) by means of a first fitting component and a second fitting component arranged vertically, wherein the first coupling head (1) and the second coupling head (7) are provided with a keyway hole (8) at the axis center, and characterized in that: An adjustment chamber (14) is provided at the axis center of the coupling body (3), and the adjustment chamber (14) can accommodate a shaft passing through the key slot hole (8) for sliding. The front and rear ends of the inner wall of the adjustment chamber (14) are both provided with sliding limit plates (13). The outer walls of the limit plates (13) are both slidably connected to the inner wall of the adjustment chamber (14) through sliding components that pass through the coupling body (3). The portions of the two groups of sliding components that pass through the outside of the coupling body (3) are limited by threaded limit components.

2. A coupling with an adjustment chamber according to claim 1, characterized in that: The first engaging component comprises a first engaging block group (4) fixedly connected to the front end of the coupling body (3), and a first engaging groove group (2) capable of engaging with the first engaging block group (4) is provided on the surface of the seat of the first coupling head (1).

3. A coupling with an adjustment chamber according to claim 2, characterized in that: The second interlocking assembly comprises a second interlocking block group (5) fixedly connected to the rear end of the coupling body (3) and arranged perpendicularly to the first interlocking block group (4); a second interlocking groove group (6) capable of interlocking with the second interlocking block group (5) is provided on the surface of the seat of the second coupling head (7).

4. A coupling with an adjustment chamber according to claim 1, characterized in that: The sliding assembly comprises three groups of adjusting slide grooves (9) arranged in a circumferentially equidistant array on the surface of the coupling body (3), and the inner side walls of the three groups of adjusting slide grooves (9) are slidably connected to adjusting slide bars (10) at both ends.

5. A coupling with an adjustment chamber according to claim 4, characterized in that: The adjusting slide bar (10) has a circular hole at its head and an adjusting bolt (11) is slidably connected to the inner wall of the circular hole. The adjusting bolt (11) is threadedly connected to two adjusting nuts (12) at both ends. The two adjusting nuts (12) at both ends clamp the adjusting slide bar (10) at both ends respectively.

6. A coupling with an adjustment chamber according to claim 5, characterized in that: The base of the adjusting slide bar (10) is fixedly connected to a limiting plate (13).

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