Variable cylinder structure for axial direction

Abstract

The utility model discloses an axial variable cylinder body structure, and relates to the technical field of variable cylinder bodies. Comprising a main cylinder body, a variable mechanism is arranged on the inner wall of the main cylinder body, a connecting block moves through an arranged adjusting assembly, so that the distance between the connecting block and a connector is shortened, a compression spring is extruded to deform, and when the compression spring is extruded to deform, the extrusion force of the compression spring on a variable mechanism control disc is increased; according to the compression spring, the sealing shell is opened through the bolt, so that the extrusion force of the compression spring on the control panel of the variable mechanism after the compression spring is used for a long time can be conveniently adjusted and compensated, enough extrusion force can be conveniently provided for the control panel of the variable mechanism, and the stable using effect is kept; and then the adjusting threaded column can be detached from the side wall of the connecting block by anticlockwise rotating the fixed threaded column, and then the compression spring can be taken out and replaced through the receding hole by compressing the compression spring.

Description

TECHNICAL FIELD

[0001] The utility model relates to variable cylinder body technical field, concretely is a kind of variable cylinder body structure for axial. BACKGROUND

[0002] In the development process of hydraulic transmission system, axial variable cylinder body structure plays a very key role, and hydraulic system aims at efficient power transmission and accurate motion control, and axial variable cylinder body structure is the core component to achieve this goal.

[0003] However, the existing variable cylinder for axial in long-term use process, the extrusion force of variable mechanism control disc can be reduced due to the elastic attenuation of key components such as compression spring, the existing technology lacks convenient and effective adjusting assembly, it is difficult to accurately adjust and compensate the extrusion force of variable mechanism control disc when the performance of compression spring decreases, which makes it difficult for variable cylinder structure to maintain stable response ability, so that the equipment is prone to unstable power output, poor flow regulation accuracy and other conditions in operation, seriously affecting the normal operation and production efficiency of equipment, therefore, a variable cylinder structure for axial is needed to solve the above problems. SUMMARY

[0004] The utility model aims at providing a kind of variable cylinder body structure for axial, to solve the problem that traditional variable cylinder is difficult to adjust and compensate the extrusion force of variable mechanism control disc when the performance of compression spring decreases in the background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of variable cylinder body structure for axial, including main cylinder body, the inner wall of the main cylinder body is provided with variable mechanism, the top surface of the main cylinder body is provided with the hole of avoiding position, the inner wall of the hole of avoiding position is provided with adjusting assembly;

[0006] The adjusting assembly includes connecting block, the connecting block is slidably connected in the inner wall of the hole of avoiding position, the side wall of the connecting block is fixedly connected with clamping post, the surface of the clamping post is sleeved with compression spring, the other end of the compression spring is sleeved with connecting head, the side wall of the connecting head is rotatably connected with one end of variable mechanism control disc, the top surface of the main cylinder body is fixedly connected with fixed frame, the inner wall of the fixed frame is inserted with adjusting screw thread column.

[0007] Preferably, the left end of the adjusting screw thread column is provided with screw groove, the side wall of the connecting block is provided with through hole, the inner wall of the through hole is movably sleeved with fixed screw thread column, the surface of the fixed screw thread column is threadedly connected with the inner wall of screw groove.

[0008] Preferably, two sliding grooves are formed in the bottom surface of the fixing frame, and the two sides of the connecting block are fixedly connected with limiting blocks which are in sliding connection with the inner walls of the sliding grooves.

[0009] Preferably, a sealing shell is arranged on the top surface of the main cylinder body, two fixing holes are formed in the bottom surface of the sealing shell, and the sealing shell is detachably connected with the top surface of the main cylinder body through bolts.

[0010] Preferably, an adjusting nut is threadedly connected with the surface of the adjusting threaded column, and one end of the adjusting nut is in abutment with the side wall of the fixing frame.

[0011] Preferably, a limiting groove is formed in the side wall of the connecting block, and one end of the adjusting threaded column is in abutment with the inner wall of the limiting groove.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] The adjusting assembly is arranged, so that the adjusting threaded column is moved to drive the connecting block to move, the distance between the connecting block and the connecting head is shortened to extrude the compression spring to deform, the extrusion force of the compression spring on the variable mechanism control disc is increased when the compression spring is extruded to deform, the extrusion force of the compression spring on the variable mechanism control disc is adjusted and compensated after long-term use of the compression spring, the variable mechanism control disc is provided with sufficient extrusion force, stable use effect is maintained, the compression spring is replaced after multiple adjustments and uses, the sealing shell is opened through bolts, the adjusting threaded column is detached from the side wall of the connecting block by counterclockwise rotation of the fixed threaded column, and the compression spring is taken out and replaced through the avoiding hole. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0015] Figure 2 It is an adjusting assembly structure schematic view of the utility model;

[0016] Figure 3 It is an adjusting assembly local section structure schematic view of the utility model;

[0017] Figure 4 It is a threaded groove structure schematic view of the utility model;

[0018] Figure 5 It is a limiting groove structure schematic view of the utility model.

[0019] In the figure: 1, main cylinder body; 2, variable mechanism; 3, avoiding hole; 4, adjusting assembly; 401, connecting block; 402, clamping post; 403, compression spring; 404, connecting head; 405, fixed frame; 406, adjusting threaded post; 407, sliding groove; 408, limiting block; 409, threaded groove; 410, through hole; 411, fixed threaded post; 412, limiting groove; 413, sealing shell; 414, fixed hole; 415, adjusting nut. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be apparently and completely described in connection with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0021] Please refer to Figures 1-5 The utility model provides a kind of variable cylinder structure for axial, including main cylinder body 1, the inner wall of main cylinder body 1 is provided with variable mechanism 2, the top surface of main cylinder body 1 is provided with avoiding hole 3, the inner wall of avoiding hole 3 is provided with adjusting assembly 4, adjusting assembly 4 includes connecting block 401, connecting block 401 is connected in the inner wall of avoiding hole 3 slidingly, the side wall of connecting block 401 is fixedly connected with clamping post 402, the surface of clamping post 402 is equipped with compression spring 403, the other end of compression spring 403 is equipped with connecting head 404, the side wall of connecting head 404 is rotatably connected with one end of variable mechanism 2 control disc, the top surface of main cylinder body 1 is fixedly connected with fixed frame 405, the inner wall of fixed frame 405 is inserted with adjusting threaded post 406, by being equipped with adjusting assembly 4, it is moved that adjusting threaded post 406 can drive connecting block 401 to move, connecting block 401 moves so that the distance between connecting block 401 and connecting head 404 shortens to extrude compression spring 403 and make deformation, when compression spring 403 is extruded and makes deformation, so that the extrusion force of compression spring 403 to variable mechanism 2 control disc increases, so as to facilitate the extrusion force of compression spring 403 to variable mechanism 2 control disc to be adjusted and compensated after long-term use, in turn, it is convenient to provide enough extrusion degree of variable mechanism 2 control disc, keep stable use effect.

[0022] Further, the left end of the adjusting threaded column 406 is provided with a threaded groove 409, the sidewall of the connecting block 401 is provided with a through hole 410, the inner wall of the through hole 410 is movably sleeved with a fixed threaded column 411, the surface of the fixed threaded column 411 is threadedly connected with the inner wall of the threaded groove 409, the threaded groove 409 and the fixed threaded column 411 are used in cooperation, the adjusting threaded column 406 can be disassembled from the sidewall of the connecting block 401 by counterclockwise rotating the fixed threaded column 411, and the compression spring 403 is compressed to be taken out and replaced through the avoiding hole 3.

[0023] Further, the bottom surface of the fixing frame 405 is provided with two sliding grooves 407, the two sides of the connecting block 401 are fixedly connected with limiting blocks 408, the limiting blocks 408 are slidingly connected with the inner walls of the sliding grooves 407, the sliding grooves 407 and the limiting blocks 408 are used in cooperation, the connecting block 401 is limited to move horizontally.

[0024] Further, the top surface of the main cylinder body 1 is provided with a sealing shell 413, the bottom surface of the sealing shell 413 is provided with two fixed holes 414, the sealing shell 413 is detachably connected with the top surface of the main cylinder body 1 through bolts, the sealing shell 413 is detachably connected, the compression spring 403 is replaced by opening the sealing shell 413.

[0025] Further, the surface of the adjusting threaded column 406 is threadedly connected with an adjusting nut 415, one end of the adjusting nut 415 abuts against the sidewall of the fixing frame 405, the adjusting nut 415 is provided, and the adjusting threaded column 406 is moved by rotating the adjusting nut 415.

[0026] Further, the sidewall of the connecting block 401 is provided with a limiting groove 412, one end of the adjusting threaded column 406 abuts against the inner wall of the limiting groove 412, and the limiting groove 412 is provided, and the adjusting threaded column 406 is limited.

[0027] Working principle: through the setting adjustment assembly 4, rotate the adjusting nut 415 can drive the adjusting threaded column 406 to move, the adjusting threaded column 406 moves and can drive the connecting block 401 to move, the connecting block 401 moves and makes the distance between the connecting block 401 and the connecting head 404 shorten to extrude the compression spring 403 and make it deform, when the compression spring 403 is extruded and deformed, the extrusion force of the compression spring 403 to the control disc of the variable mechanism 2 increases, so that the extrusion force of the compression spring 403 to the control disc of the variable mechanism 2 after long-term use is adjusted and compensated, and then the control disc of the variable mechanism 2 is conveniently provided with enough extrusion force, and stable use effect is kept, when the compression spring 403 after multiple adjustment and use needs to be replaced, the sealed shell 413 is opened by bolt, the fixed threaded column 411 is counterclockwise rotated, the adjusting threaded column 406 is detached from the side wall of the connecting block 401, the compression spring 403 is compressed, and then it is taken out through the avoiding hole 3 and replaced.

[0028] It is obvious for those skilled in the art that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, the scope of the utility model is defined by the appended claims instead of the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any figure mark in the claims should not be regarded as limiting the involved claims.

Claims

1. A variable axial cylinder structure comprising a main cylinder (1), characterized by: The inner wall of the main cylinder body (1) is provided with a variable mechanism (2), and the top surface of the main cylinder body (1) is provided with an avoiding hole (3), and the inner wall of the avoiding hole (3) is provided with an adjusting assembly (4); The adjusting assembly (4) comprises a connecting block (401) which is slidingly connected to the inner wall of the avoiding hole (3), and the side wall of the connecting block (401) is fixedly connected with a clamping column (402), the surface of the clamping column (402) is sleeved with a compression spring (403), the other end of the compression spring (403) is sleeved with a connecting head (404), the side wall of the connecting head (404) is rotatably connected with one end of the control disc of the variable mechanism (2), and the top surface of the main cylinder body (1) is fixedly connected with a fixed frame (405), and the inner wall of the fixed frame (405) is inserted with an adjusting threaded column (406).

2. A variable structure for an axial cylinder according to claim 1, characterized in that: The left end of the adjusting threaded column (406) is provided with a threaded groove (409), the side wall of the connecting block (401) is provided with a through hole (410), and the inner wall of the through hole (410) is movably sleeved with a fixed threaded column (411), and the surface of the fixed threaded column (411) is threadedly connected with the inner wall of the threaded groove (409).

3. A variable structure for an axial cylinder according to claim 1, characterized in that: The bottom surface of the fixed frame (405) is provided with two sliding grooves (407), and the two sides of the connecting block (401) are fixedly connected with a limiting block (408), and the limiting block (408) is slidingly connected with the inner wall of the sliding groove (407).

4. A variable structure for an axial cylinder according to claim 1, characterized in that: The top surface of the main cylinder body (1) is provided with a sealing shell (413), the bottom surface of the sealing shell (413) is provided with two fixed holes (414), and the top surface of the main cylinder body (1) is detachably connected with the sealing shell (413) through bolts.

5. A variable structure for an axial cylinder according to claim 1, characterized in that: The surface of the adjusting threaded column (406) is threadedly connected with an adjusting nut (415), and one end of the adjusting nut (415) abuts against the side wall of the fixed frame (405).

6. A variable structure for an axial cylinder according to claim 1, characterized in that: The side wall of the connecting block (401) is provided with a limiting groove (412), and one end of the adjusting threaded column (406) abuts against the inner wall of the limiting groove (412).

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