CN113539705B - Spring energy adjusting tool for spring operating mechanism - Google Patents

Abstract

The invention provides a spring energy adjusting tool of a spring operating mechanism, which comprises the following components: a mounting plate; the screw rod sleeve is in threaded connection with the mounting plate, one end of the screw rod sleeve extends into the spring cylinder, and the other end of the screw rod sleeve is provided with a rotating structure; the jacking structure is fixed at one end of the screw sleeve and used for jacking the spring tray; the adjusting sleeve is inserted in the screw sleeve, two ends of the adjusting sleeve extend out of the screw sleeve, a first screwing structure is arranged at one end of the adjusting sleeve and used for screwing a pre-tightening nut on the spring pull rod, and a second screwing structure for screwing the adjusting sleeve is arranged at the other end of the adjusting sleeve. According to the invention, the spring tray can be jacked to move through the jacking structure only by rotating the screw sleeve, namely, the spring tray can be controlled to move only by operating one part to rotate, so that the operation is more convenient, and the operation difficulty is greatly reduced. The adjusting sleeve is inserted into the screw sleeve very skillfully, the smooth rotation of the screw sleeve is not affected, the rotation of the adjusting sleeve can be independently operated, the adjustment of the energy of the spring is realized, and the use is very convenient.

Description

Spring energy adjustment tool for spring operating mechanism

technical field

The invention relates to the technical field of spring operating mechanisms, in particular to a spring energy adjustment tool for a spring operating mechanism.

Background technique

At present, the commonly used operating mechanism of high-voltage switchgear is a spring operating mechanism. The energy storage unit of the spring operating mechanism is a combined spring, which provides kinetic energy for the operating mechanism by relying on the compression of the combined spring. Under normal circumstances, the spring mechanism does not require special tooling to release energy, and the energy can be released by using the nut of the mechanism itself. However, when abnormal conditions occur, such as body jamming, mechanism failure, or thread damage of the spring rod, the energy cannot be released according to the conventional method. At this time, special tooling is required to release the energy of the spring.

For example, the Chinese invention patent application with the application publication number CN104465240A discloses a connection mechanism for closing and opening springs and its adjustment tooling. The lead screw, the lead screw and the support rod pass through the base respectively, the support rods are respectively located on the outside of the lead screw, the tail end of the support rod is installed with a fastening nut, the nut is installed between the base and the lead screw, and the front end of the lead screw is installed with a bearing seat. A thrust bearing is installed on the bearing seat. When in use, the base is fixed on the spring barrel through the support rod, and the distance between the bearing seat and the base can be adjusted by rotating the nut between the top of the screw and the base with a wrench. The seat pushes the spring tray to move, further compresses the spring, separates the spring tray from the preload nut on the spring pull rod, and then adjusts the position of the preload nut to realize spring pressure relief or further compression, and adjust the spring energy.

The above-mentioned adjustment tool is moved by pressing the spring tray with two lead screws and two bearing seats. When in use, the two lead screws need to be rotated at the same time, otherwise the spring tray cannot be evenly stressed, which requires two people to cooperate and operate the lead screw at the same time. It is difficult to cooperate, even if one person turns two lead screws at the same time, it is difficult to ensure that the rotation angles of the two lead screws are the same, and the spring tray is located in the spring barrel, it is difficult to see whether the force is uniform, which brings great inconvenience to the adjustment work. Great inconvenience.

Contents of the invention

The purpose of the present invention is to provide a spring energy adjustment tool for a spring operating mechanism to solve the problem that the existing adjustment tool needs to rotate two lead screws at the same time and needs to ensure that the rotation angles of the two lead screws are the same, resulting in inconvenient operation.

In order to achieve the above object, the spring energy adjustment tool of the spring operating mechanism in the present invention adopts the following technical scheme:

A spring energy adjustment tool for a spring operating mechanism, comprising:

The mounting plate is used to install and fix on the frame of the spring operating mechanism;

The screw sleeve is threadedly connected to the mounting plate, one end of the screw sleeve is used to extend into the spring barrel, and the other end is provided with a rotating structure for rotating the screw sleeve;

The pressing structure is fixed on one end of the screw sleeve for extending into the spring barrel, and the pressing structure is used for pressing the spring tray;

The adjusting sleeve is inserted into the screw sleeve and the two ends protrude from the screw sleeve respectively. One end of the adjusting sleeve is provided with a first screwing structure, and the first screwing structure is used to screw the pre-tightening nut on the spring pull rod , the adjusting sleeve has an insertion hole for the spring rod to extend into, and the other end of the adjusting sleeve is provided with a second screwing structure for screwing the adjusting sleeve.

The beneficial effect of the above technical solution is that the mounting plate is used to be installed and fixed on the frame of the spring operating mechanism, thereby providing an installation basis for the installation of the screw sleeve, and the screw sleeve is threaded on the mounting plate to facilitate the adjustment of the screw sleeve. The position of the barrel, the pressing structure is fixed on the end of the screw sleeve used to extend into the spring barrel, so that the pressing structure can be pressed against the spring tray by turning the screw sleeve, pushing the spring tray to move and further compressing the spring, so that The spring tray is separated from the preload nut on the spring tie rod.

In addition, the adjusting tooling of the present invention also includes an adjusting sleeve inserted into the screw sleeve. The pre-tightening nut can change the position of the pre-tightening nut to realize the adjustment of the spring energy; the second screwing structure provided at the other end can conveniently screw the adjusting sleeve, and then drive the first screwing structure to rotate; at the same time, the adjusting sleeve has an extension Into the hole, the spring pull rod can be stretched in, that is, the spring pull rod can be avoided, so as to facilitate the screwing operation of the pre-tightening nut.

To sum up, the adjustment tool of the present invention only needs to rotate the screw sleeve through the rotating structure at the end of the screw sleeve, and the spring tray can be pressed against the pressing structure and pushed to move the spring tray, that is, only one part needs to be operated to rotate The movement of the spring tray can be controlled, the operation is more convenient, the difficulty of operation is greatly reduced, and the problem of inconvenient operation caused by the need to rotate two lead screws at the same time and ensure the same rotation angle of the two lead screws in the existing adjustment tool is solved. And the adjusting sleeve in the present invention is very ingeniously inserted in the screw sleeve, which does not affect the smooth rotation of the screw sleeve, and can operate the adjusting sleeve to rotate independently to realize the adjustment of the spring energy, which is very convenient to use.

Further, in order to facilitate the processing and installation of the pressing structure, the pressing structure includes an end fixing block, which is sheathed and fixed on the end of the screw sleeve.

Further, in order to reduce the wear and tear on the spring tray caused by the pressing structure, the pressing structure also includes a bearing installed on the end fixed block, the bearing is used to press fit with the spring tray, and the adjusting sleeve is lifted from the bearing through the inner hole.

Further, in order to improve the use effect, the bearing is a plane thrust bearing.

Further, for the convenience of assembly, the end fixing block is interference-fitted on the end of the screw sleeve.

Further, in order to facilitate the connection between the mounting plate and the screw sleeve, the mounting plate includes a fixing cylinder fixed on the mounting plate, and the screw sleeve passes through the fixing cylinder and is threadedly connected with the fixing cylinder.

Further, in order to facilitate disassembly and assembly of the fixing cylinder, the fixing cylinder is fixed on the mounting plate by bolts.

Further, in order to facilitate the fixing of the installation board, the installation board includes a U-shaped first installation board, the first installation board includes two first side boards and a first connecting board connected between the two first side boards, The two first side plates are respectively used for fixed connection with the racks on both sides of the double spring device.

Further, in order to improve the connection strength of the installation board, the installation board further includes a U-shaped second installation board, the second installation board includes two second side boards and a second connection between the two second side boards One of the two second side plates is fixedly connected to the first connecting plate, and the other of the two second side plates is used to be fixedly connected to the frame in the middle of the double spring device .

Further, in order to facilitate the adjustment of the double spring device, mounting holes for mounting the screw sleeve are respectively provided on the first connecting plate at positions corresponding to the double spring device.

Description of drawings

Fig. 1 is a view of the use state of the spring energy adjustment tool of the spring operating mechanism in the present invention.

In the figure: 1, the first mounting plate; 1-1, the mounting hole; 2, the second mounting plate; 3, the fixing cylinder; 4, the screw sleeve; 5, the end fixing block; 6, the plane thrust bearing; 7, Adjusting sleeve; 7-1, extending into hole; 8, frame; 9, spring pull rod; 10, spring tray; 11, preload nut; 12, outer spring; 13, inner spring; 14, spring barrel.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, and are not intended to limit the present invention, that is, the described embodiments are only some of the embodiments of the present invention, but not all of the embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

It should be noted that relative terms such as the terms "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 relationship between these entities or operations. There is no such actual relationship or order between them. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or device. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising said element.

The characteristics and performance of the present invention will be described in further detail below in conjunction with the examples.

An embodiment of the spring energy adjustment tool of the spring operating mechanism in the present invention is shown in FIG. 1 , which includes a mounting plate, a screw sleeve 4 , a pressing structure and an adjustment sleeve 7 .

Wherein, the mounting plate is used to be installed and fixed on the frame 8 of the spring operating mechanism, the mounting plate includes a U-shaped first mounting plate 1, the first mounting plate 1 includes two first side plates and is connected to the two second The first connecting plate between the side plates, the U-shaped opening of the first mounting plate 1 is set downwards, and the lower ends of the two first side plates are respectively used for fixed connection with the frame 8 on both sides of the double spring device. The mounting plate also includes a U-shaped second mounting plate 2, the second mounting plate 2 includes two second side plates and a second connecting plate connected between the two second side plates, the U of the second mounting plate 2 The shaped opening is set to the right, the second side plate on the upper side is fixedly connected to the first connecting plate among the two second side plates, and the second side plate on the lower side is used to be fixedly connected to the frame 8 in the middle of the double spring device, so as to Improve the connection strength between the overall mounting plate and the frame 8. In addition, the mounting plate further includes a fixing cylinder 3, which is fixed on the first connecting plate of the first mounting plate 1 by bolts and is located below the first connecting plate.

The screw sleeve 4 passes through the fixed cylinder 3 and is threadedly connected with the fixed cylinder 3. The screw sleeve 4 is provided with external threads, the inner hole of the fixed cylinder 3 is a threaded hole, and the screw sleeve 4 passes through the above-mentioned first connecting plate. That is to say, the screw sleeve 4 is installed on the mounting plate, and a mounting hole 1-1 is provided on the first connecting plate. Obviously, the mounting hole 1-1 corresponds to the inner hole of the fixing cylinder 3. The mounting hole 1-1 in this embodiment corresponds to the inner hole of the fixed cylinder 3. 1 Only for screw sleeve 4 to pass through.

As shown in FIG. 1 , the lower end of the screw sleeve 4 is used to extend into the spring barrel 14 , and the upper end is provided with a rotating structure for rotating the screw sleeve 4 . The rotating structure in this embodiment is a hexagonal cylindrical surface. The above pressing structure is fixed on the lower end of the screw sleeve 4 for pressing the spring tray 10 . Specifically, in this embodiment, the pressing structure includes an end fixing block 5, and the end fixing block 5 is sheathed and fixed on the end of the screw sleeve 4, specifically, it is interference fitted on the end of the screw sleeve 4. . The pressing structure also includes a bearing installed on the end fixing block 5 , the bearing is a plane thrust bearing 6 , and the plane thrust bearing 6 is used to press fit with the spring pallet 10 .

The adjusting sleeve 7 is inserted into the screw sleeve 4 through the inner hole of the plane thrust bearing 6, and the upper and lower ends of the adjusting sleeve 7 protrude from the screw sleeve 4 respectively, and the lower end of the adjusting sleeve 7 is provided with a first screw Structure, the first screwing structure is used to screw the pre-tightening nut 11 on the spring rod 9, so the first screwing structure is set to match the shape of the pre-tightening nut 11, which can be an inner hexagonal structure or an inner square structure. When the first screwing structure cooperates with the pre-tightening nut 11, the spring pull rod 9 extends into the adjustment sleeve 7, so the adjustment sleeve 7 has an insertion hole 7-1 for the spring pull rod 9 to extend into. The upper end of the adjusting sleeve 7 is provided with a second screwing structure for screwing the adjusting sleeve 7, so as to facilitate the rotation of the adjusting sleeve 7 to realize the adjustment of the pre-tightening nut 11. The second screwing structure can be a hexagonal cylindrical surface or is a quadrangular prism.

The operating principle of the spring energy adjustment frock of the spring operating mechanism in the present invention is:

When in use, first fix the fixing cylinder 3 on the first mounting plate 1 with bolts, fit the end fixing block 5 on the end of the screw sleeve 4 with interference, and fix the plane thrust bearing 6 on the end fixing block 5 superior. Then the assembled screw sleeve 4 is screwed into the fixed cylinder 3 to adjust the appropriate screw-in length. After completion, the adjusting sleeve 7 is first inserted into the screw sleeve 4 through the plane thrust bearing 6, and the length of the adjusting sleeve 7 is sufficient to ensure that its upper end can also pass through the screw sleeve 4. Then the first mounting plate 1 and the second mounting plate 2 are respectively fixed on the frame 8, and the screw sleeve 4 is rotated by the rotating structure of the upper end of the screw sleeve 4, so that the plane thrust bearing 6 at the lower end is pushed onto the spring pallet 10 , and then continue to rotate the screw sleeve 4 to push the spring tray 10 to move downward and compress the outer spring 12 and the inner spring 13. At this time, the spring tray 10 is separated from the preload nut 11, and the first screw at the lower end of the adjustment sleeve 7 can be used. The structure unscrews the pre-tightening nut 11, and then reversely rotates the screw sleeve 4 to completely release the spring energy to achieve the purpose of energy dissipation.

Of course, after the spring tray 10 is separated from the preload nut 11 , the preload nut 11 can also be turned up or down for a certain distance to change the position of the preload nut 11 to realize the adjustment of the spring energy.

Therefore, the adjustment tooling of the present invention only needs to rotate the screw sleeve through the rotating structure at the end of the screw sleeve 4, and can press the spring tray 10 through the pressing structure and push the spring tray 10 to move, that is, only one part needs to be operated The movement of the spring tray 10 can be controlled by turning, and the operation is more convenient, which greatly reduces the difficulty of operation, and solves the problem of inconvenient operation caused by the need to rotate two lead screws at the same time and ensure that the rotation angles of the two lead screws are the same in the existing adjustment tool. And the adjustment sleeve 7 among the present invention is very ingeniously inserted in the screw sleeve 4, neither influences the smooth rotation of the screw sleeve 4, but also can operate the adjustment sleeve 7 to rotate independently, realizes the adjustment of spring energy, uses very convenient.

In addition, the adjustment tool in this embodiment is used for the adjustment of the double spring device. The first connecting plate of the first mounting plate 1 straddles the two spring devices. For the convenience of use, two mounting holes are provided on the first connecting plate. 1-1, two fixing cylinders 3, two screw sleeves 4 and two adjusting sleeves 7 can be installed at the same time to realize the synchronous adjustment of the double spring device and improve the working efficiency. Of course, only one set of fixing tube 3, screw sleeve 4 and adjusting sleeve 7 can be provided. At this time, one of the spring devices can be adjusted first, and then the fixing tube 3, screw sleeve 4 and adjusting sleeve 7 can be removed to install Go to another mounting hole 1-1 to realize the adjustment of another spring device.

In other embodiments of the spring energy adjustment tool of the spring operating mechanism, only one mounting hole on the first connecting plate may be provided, and at this time, the adjustment of another spring device may be realized by turning the first mounting plate around for installation, or One adjustment tool can only realize the adjustment of one spring device. To realize the adjustment of the double spring device, two sets of adjustment tools need to be prepared.

In other embodiments of the spring energy adjustment tool of the spring operating mechanism, the mounting plate does not include the second mounting plate, but only includes the first mounting plate and the fixing cylinder fixed on the first mounting plate.

In other embodiments of the spring energy adjustment tool of the spring operating mechanism, when the mounting plate is only composed of the first mounting plate and the fixing cylinder, the shape of the first mounting plate may not be U-shaped, but designed according to the structure of the frame Convenient for fixed connection with the rack.

In other embodiments of the spring energy adjustment tool of the spring operating mechanism, the adjustment tool can also be adapted for the adjustment of a single spring device.

In other embodiments of the spring energy adjustment tool of the spring operating mechanism, the fixing cylinder can be welded and fixed on the mounting plate.

In other embodiments of the spring energy adjustment tooling of the spring operating mechanism, the mounting plate does not include the fixing tube, and the wall thickness of the mounting plate is sufficient. At this time, threaded holes can be directly processed on the mounting plate, so that the screw sleeve is directly connected to the mounting plate. threaded connection.

In other embodiments of the spring energy adjustment tool of the spring operating mechanism, the end fixing block can also be welded and fixed on the end of the screw sleeve.

In other embodiments of the spring energy adjustment tool of the spring operating mechanism, the bearing can also be an angular contact ball bearing capable of bearing axial force. At this time, the outer ring of the angular contact ball bearing is fixed with the end fixed block, and the inner ring is used for Press fit with spring tray top.

In other embodiments of the spring energy adjustment tool of the spring operating mechanism, the pressing structure does not include a bearing, but only includes an end fixing block. At this time, the end fixing block directly presses and fits with the spring pallet.

In other embodiments of the spring energy adjustment tool of the spring operating mechanism, the pressing structure may not be an end fixing block, but an end fixing plate or an end fixing rod.

In other embodiments of the spring energy adjustment tool of the spring operating mechanism, the rotating structure at the end of the screw sleeve may also be a quadrangular prism or a cylinder.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention. The scope of patent protection of the present invention is subject to the claims. Any equivalent structural changes made by using the description and accompanying drawings of the present invention, All should be included in the protection scope of the present invention in the same way.

Claims (10)

1. Spring operating mechanism spring energy adjusts frock, its characterized in that includes:

the mounting plate is used for being mounted and fixed on a frame (8) of the spring operating mechanism;

the screw sleeve (4) is in threaded connection with the mounting plate, one end of the screw sleeve (4) is used for extending into the spring cylinder (14), and the other end of the screw sleeve is provided with a rotating structure for rotating the screw sleeve (4);

the jacking structure is fixed at one end of the screw sleeve (4) which is used for extending into the spring cylinder (14), so that the spring tray (10) can be jacked by the jacking structure when the screw sleeve (4) rotates inwards towards the spring cylinder (14) relative to the mounting plate;

the adjusting sleeve (7) is inserted in the screw sleeve (4) and two ends of the adjusting sleeve extend out of the screw sleeve (4) respectively, one end of the adjusting sleeve (7) is provided with a first screwing structure, the first screwing structure is used for screwing a pre-tightening nut (11) on the spring pull rod (9), the adjusting sleeve (7) is provided with an extending hole (7-1) for the spring pull rod (9) to extend in, and the other end of the adjusting sleeve (7) is provided with a second screwing structure for screwing the adjusting sleeve (7).

2. The spring energy adjusting tool for the spring operating mechanism according to claim 1, wherein the pressing structure comprises an end fixing block (5), and the end fixing block (5) is sleeved and fixed at the end of the screw sleeve (4).

3. Spring energy adjustment tool for spring operation mechanism according to claim 2, characterized in that the pressing structure further comprises a bearing mounted on the end fixing block (5), the bearing is used for pressing fit with the spring tray (10), and the adjustment sleeve (7) passes through an inner hole of the bearing.

4. A spring operator spring energy adjustment tool according to claim 3, characterized in that the bearing is a planar thrust bearing (6).

5. The spring energy adjustment tool for the spring operation mechanism according to any one of claims 2 to 4, wherein the end fixing block (5) is assembled at the end of the screw sleeve (4) in an interference manner.

6. The spring energy adjustment tool of the spring operation mechanism according to any one of claims 1 to 4, wherein the mounting plate comprises a fixed cylinder (3) fixed on the mounting plate, and the screw sleeve (4) penetrates through the fixed cylinder (3) and is in threaded connection with the fixed cylinder (3).

7. The spring energy adjustment tool of the spring operating mechanism according to claim 6, wherein the fixed cylinder (3) is fixed on the mounting plate by bolts.

8. The spring energy adjusting tool for the spring operating mechanism according to any one of claims 1 to 4, wherein the mounting plate comprises a first mounting plate (1) in a U shape, the first mounting plate (1) comprises two first side plates and a first connecting plate connected between the two first side plates, and the two first side plates are respectively used for being fixedly connected with racks (8) on two sides of the double spring device.

9. The spring energy adjustment tool of claim 8, wherein the mounting plate further comprises a second mounting plate (2) having a U-shape, the second mounting plate (2) comprising two second side plates and a second connecting plate connected between the two second side plates, one of the two second side plates being fixedly connected to the first connecting plate, the other of the two second side plates being fixedly connected to a frame (8) in the middle of the double spring device.

10. Spring energy adjustment tool for a spring operation mechanism according to claim 8, characterized in that mounting holes (1-1) for mounting the screw sleeve (4) are provided in the first connection plate at positions corresponding to the double spring arrangement, respectively.

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