Tool for feeding main shaft swash plate into cylinder

Abstract

The utility model provides a tool for putting a main shaft swash plate into a cylinder, which belongs to the technical field of main shaft swash plate installation, and comprises a fixed seat, and a positioning sleeve, a fixed ring, a fastening block and a cylinder body which are arranged on the fixed seat, and two groups of symmetrical support legs are arranged on one side of the fixed seat. According to the utility model, in the process of installing the main shaft swash plate and the cylinder body through the arranged tool, the difficulty of positioning the pistons is effectively avoided, the plurality of pistons and the main shaft swash plate are firstly installed and fixed through the tool, and then the cylinder body is inserted and fixed; compared with traditional cylinder entering operation, the piston can be quickly positioned through the work, the mounting speed is increased, meanwhile, mounting difficulty caused by inclination of the angle of the piston during mounting is avoided, the precision in the mounting process is improved, meanwhile, the piston and a main shaft swash plate can be quickly mounted through the arranged feeding frame, and the mounting efficiency is improved. And the efficiency of mounting and fixing the main shaft swash plate and the cylinder body is further improved.

Description

Technical Field

[0001] This utility model relates to the field of spindle swashplate installation technology, and more specifically, to a spindle swashplate cylinder insertion tool. Background Technology

[0002] In equipment such as axial piston pumps and axial piston motors, the spindle swashplate and piston cylinder are key components. The piston cylinder is a cylindrical structure containing a piston. One end of the piston cylinder is usually closed, while the other end is connected to an external piping system for operations such as oil suction and pressure, or air intake and exhaust. The spindle swashplate is a disc-shaped structure with an inclined angle. It is connected to the spindle, and when the spindle rotates, the swashplate rotates accordingly.

[0003] In existing technologies, the traditional installation of a spindle swashplate and cylinder block involves first engaging the piston with a limiting block at one end, allowing the piston to rotate along the side wall of the swashplate. Then, the mounting slot in the cylinder block is aligned with the piston for insertion. However, this direct installation method fixes the piston's position on the swashplate, causing piston wobble during cylinder insertion. This makes it impossible to guarantee alignment between the piston and cylinder block, resulting in poor installation accuracy. Furthermore, collisions between parts during installation can lead to wear. Therefore, inventing a spindle swashplate cylinder insertion fixture to solve these problems has become a pressing issue for those skilled in the art. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a spindle swashplate cylinder insertion tool, which aims to solve the problem of poor installation accuracy of traditional spindle swashplate and cylinder block installation.

[0005] This utility model is implemented as follows:

[0006] This utility model provides a spindle swashplate cylinder insertion tooling, including a fixed seat and a positioning sleeve, a fixing ring, a fastening block and a cylinder body disposed on the fixed seat. Two sets of symmetrical support legs are installed on one side of the fixed seat, and a feeding rack is installed on the upper end of the support legs. Multiple pistons are placed on the feeding rack. A slide rail is installed on the side of the fixed seat away from the support.

[0007] The lower inner wall of the positioning sleeve is slidably connected to the outer wall of the slide rail. A first notch is provided at one end of the positioning sleeve. A main shaft swashplate is inserted into the inner wall of the positioning sleeve. A limit plate is installed at one end of the main shaft swashplate. A plug shaft is installed on one side of the limit plate. A slot is provided at one end of the plug shaft.

[0008] A connecting plate is installed on the side wall of the fixing ring. A fixing sleeve that is inserted into the outer wall of the insert shaft is installed at one end of the connecting plate. A second insert rod that is inserted into the inner wall of the slot is installed at the end of the fixing ring near the inside of the fixing sleeve. A limiting shaft is installed on the outer wall of the fixing sleeve. Multiple mounting grooves are opened on the side wall of the limiting shaft.

[0009] The plurality of fastening blocks rotate between each other via pins, and the plurality of fastening blocks are located between the spindle swashplate and the retaining ring.

[0010] Preferably, a first insert rod is installed on the inner wall of one end of the positioning sleeve, and a insert sleeve that is inserted and fixed to the outer wall of the first insert rod is installed on the end of the main shaft swashplate near the first insert rod.

[0011] Preferably, one end of the fixing ring has a second notch of the same size as the first notch, and the first and second notches allow the piston to be inserted laterally into the limiting plate at one end of the main shaft swashplate.

[0012] Preferably, the inner wall of the limiting shaft and the outer wall of the fixing sleeve are rotatably connected, and the inner wall of the mounting groove and the outer wall of the piston abut against each other.

[0013] Preferably, the plurality of fastening blocks are elongated in the non-working state, and the inner sidewalls of the plurality of fastening blocks arranged in a ring around each other abut against the outer wall of the piston, wherein the sidewalls of two adjacent fastening blocks are fitted with compression blocks.

[0014] Preferably, the cylinder body has multiple piston grooves that are inserted into the piston, and the cylinder body is inserted into and fixed to the outer wall of the piston at the end away from the limiting block after the fixing ring is removed.

[0015] By adopting the above technical solution, the cooperation between multiple tooling fixtures improves the installation speed and increases the accuracy of the installation process, while avoiding wear caused by collisions between parts during installation.

[0016] Preferably, one end of the piston is slidably connected to the outer wall of the feeding rack via a snap-fit ​​mechanism, and the end of the feeding rack is angled upwards.

[0017] By adopting the above technical solution, the loading rack can quickly install the piston, further improving the efficiency of installing and fixing the spindle swashplate and cylinder.

[0018] The beneficial effects of this utility model are:

[0019] The tooling effectively avoids the difficulty of piston positioning during the installation of the spindle swashplate and cylinder block. The tooling first installs and fixes multiple pistons and the spindle swashplate, then inserts and fixes the cylinder block. Compared to traditional cylinder insertion operations, this method allows for rapid piston positioning, increasing installation speed and accuracy. It also prevents wear caused by collisions between parts during installation. Furthermore, the loading rack allows for quick installation of the pistons and spindle swashplate, further improving the efficiency of installing and fixing the spindle swashplate and cylinder block. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of a spindle swashplate cylinder entry tool provided by an embodiment of this utility model;

[0022] Figure 2 This is a partial sectional view of a spindle swashplate cylinder entry tool provided by an embodiment of the present invention;

[0023] Figure 3 This is an exploded view of a partial structure of a spindle swashplate cylinder entry tool provided by an embodiment of this utility model;

[0024] Figure 4 This is a partial structural cross-sectional view of a spindle swashplate cylinder entry tool provided by an embodiment of this utility model;

[0025] Figure 5 This is a schematic diagram of the cylinder mounting structure in a spindle swashplate cylinder entry tool provided by an embodiment of this utility model.

[0026] In the diagram: 1. Fixed base; 11. Support leg; 12. Loading rack; 13. Slide rail; 2. Positioning sleeve; 21. First insertion rod; 22. First notch; 3. Main shaft slant plate; 31. Insertion sleeve; 32. Limiting plate; 33. Insertion shaft; 331. Slot; 4. Fixing ring; 41. Connecting plate; 42. Fixing sleeve; 421. Second insertion rod; 43. Limiting shaft; 431. Mounting groove; 44. Second notch; 5. Fastening block; 51. Pin shaft; 52. Extrusion block; 6. Cylinder body; 61. Piston groove; 7. Piston. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] Example, refer to Figures 1-5 A spindle swashplate cylinder insertion tooling includes a fixed seat 1 and a positioning sleeve 2, a fixing ring 4, a fastening block 5 and a cylinder body 6 disposed on the fixed seat 1. Two sets of symmetrical support legs 11 are installed on one side of the fixed seat 1. A feeding rack 12 is installed on the upper end of the support legs 11. Multiple pistons 7 are placed on the feeding rack 12. A slide rail 13 is installed on the side of the fixed seat 1 away from the support.

[0029] The lower inner wall of the positioning sleeve 2 is slidably connected to the outer wall of the slide rail 13. A first notch 22 is provided at one end of the positioning sleeve 2. A main shaft swashplate 3 is inserted into the inner wall of the positioning sleeve 2. A limit plate 32 is installed at one end of the main shaft swashplate 3. A plug shaft 33 is installed on one side of the limit plate 32. A slot 331 is provided at one end of the plug shaft 33.

[0030] A connecting plate 41 is installed on the side wall of the fixing ring 4. A fixing sleeve 42 that is inserted into the outer wall of the insert shaft 33 is installed on one end of the connecting plate 41. A second insert rod 421 that is inserted into the inner wall of the slot 331 is installed on the end of the fixing ring 4 near the inside of the fixing sleeve 42. A limiting shaft 43 is installed on the outer wall of the fixing sleeve 42. Multiple mounting grooves 431 are opened on the side wall of the limiting shaft 43.

[0031] Multiple fastening blocks 5 rotate between each other via a pin 51, and the multiple fastening blocks 5 are located between the main shaft swashplate 3 and the retaining ring 4.

[0032] Furthermore; a first insert rod 21 is installed on the inner wall of one end of the positioning sleeve 2, and an insert sleeve 31 that is inserted and fixed to the outer wall of the first insert rod 21 is installed on the end of the main shaft swashplate 3 near the first insert rod 21. A second notch 44 of the same size as the first notch 22 is opened at one end of the fixing ring 4. The first notch 22 and the second notch 44 allow the piston 7 to be inserted laterally into the limiting plate 32 at one end of the main shaft swashplate 3. The inner wall of the limiting shaft 43 and the outer wall of the fixing sleeve 42 are rotatably connected. The inner wall of the mounting groove 431 abuts against the outer wall of the piston 7. Multiple fastening blocks 5 are elongated in the non-working state. The inner side wall of multiple fastening blocks 5 that surround each other in a ring abuts against the outer wall of the piston 7. Among them, the side walls of two adjacent fastening blocks 5 are equipped with extrusion blocks 52. Multiple piston grooves 61 that are inserted into the piston 7 are opened on the cylinder body 6. After the fixing ring 4 is removed, the cylinder body 6 is inserted and fixed to the outer wall of the piston 7 away from the limiting block.

[0033] It should be noted that during the installation between the main spindle swashplate 3 and the cylinder block 6, the main spindle swashplate 3 is fixed by the positioning sleeve 2. Then, the fixing ring 4 is fixed by the insertion shaft 33 and slot 331 at one end of the main spindle swashplate 3 in conjunction with the fixing sleeve 42 and the second insertion rod 421 on one side of the connecting plate 41. At this time, the limiting shaft 43 on one side of the fixing ring 4 is exposed on one side of the main spindle swashplate 3, and a large gap is left between the fixing ring 4 and the main spindle swashplate 3. Then, the piston 7 is pushed into the gap from the side through the notch on one side of the positioning sleeve 2 and the fixing ring 4. During the pushing process, the outer wall of the piston 7 abuts against the inner wall of the limiting shaft 43, and the limiting block at one end of the piston 7 is inserted into the side wall of the limiting plate 32 to prevent the piston 7 from loosening and falling off in its vertical direction. The piston 7 is continued to be pushed in, and during the pushing process, the piston 7 in front and the limiting shaft 43 rotate, so that each piston 7 is accurately engaged. The piston 7 is positioned between the mounting slot 431 and the limiting plate 32. Then, the multiple flat fastening blocks 5 are rotated so that their inner walls abut against the side wall of the piston 7 to form a ring. This, together with the limiting shaft 43, fixes the position of the piston 7. Then, one hand holds the whole unit in place by pressing the compression blocks 52 on the first and last fastening blocks 5, while the other hand removes the fixing ring 4 and pushes the piston groove 61 on the cylinder body 6 to the piston 7, allowing part of the piston 7 to enter the cylinder body 6. Then, the fastening blocks 5 and the main shaft swashplate 3 are removed in sequence, and the cylinder body 6 is pushed again to accurately place the piston 7 into the piston groove 61, thus fixing the main shaft swashplate 3 and the cylinder body 6. Compared with the traditional cylinder insertion operation, this method can quickly position the piston 7, improve the installation speed and accuracy, and avoid wear caused by collisions between parts during installation.

[0034] Furthermore, one end of the piston 7 is slidably connected to the outer wall of the feed rack 12 via a snap-fit ​​mechanism, and the end of the feed rack 12 is angled upwards.

[0035] It should be noted that: before positioning the piston 7, multiple pistons 7 are placed on the loading rack 12, and during installation, the positioning sleeve 2 is pushed close to the loading rack 12 via the slide rail 13, so that one end of the loading rack 12 extends into the space between the main shaft swashplate 3 and the fixing ring 4. At this time, the installation can be quickly completed by simply pushing the piston 7 along the loading rack 12, which further improves the efficiency of installing and fixing the main shaft swashplate 3 and the cylinder 6.

[0036] The working principle of this spindle swashplate cylinder entry tool:

[0037] During installation between the main spindle swashplate 3 and the cylinder 6, the main spindle swashplate 3 is fixed using the positioning sleeve 2. Then, the fixing ring 4 is fixed to one end of the main spindle swashplate 3. Next, the positioning sleeve 2 is pushed towards the loading rack 12 via the slide rail 13, so that one end of the loading rack 12 extends into the space between the main spindle swashplate 3 and the fixing ring 4. At this point, the piston 7 is pushed along the loading rack 12 through the notch, pushing it into the gap from the side, so that the outer wall of the piston 7 abuts against the inner wall of the limiting shaft 43. Simultaneously, the limiting block at one end of the piston 7 inserts into the side wall of the limiting plate 32. Further pushing of the piston 7 causes the front piston 7 and the limiting shaft 43 to rotate, ensuring that each piston 7 is accurately engaged between the mounting groove 431 and the limiting plate 32. Finally, the multiple flat fastening blocks 5 are rotated... The inner sidewall of the piston 7 is wrapped around the sidewall of the piston 7 to form a ring. The piston 7 is fixed in position with the limiting shaft 43. Then, the piston 7 is fixed by pressing the compression block 52 on the end fastening block 5 with one hand, and the fixing ring 4 is removed with the other hand. The piston groove 61 on the cylinder body 6 is aligned with the piston 7 and pushed so that part of the piston 7 enters the cylinder body 6. Then, the fastening block 5 and the main shaft swashplate 3 are removed in sequence, and the cylinder body 6 is pushed again to accurately place the piston 7 into the piston groove 61. This completes the fixation between the main shaft swashplate 3 and the cylinder body 6. Compared with the traditional cylinder insertion operation, this method can quickly locate the position of the piston 7, improve the installation speed, avoid the installation difficulty caused by the piston 7 tilting during installation, and increase the accuracy of the installation process.

[0038] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A spindle swashplate cylinder insertion fixture, comprising a fixed base (1) and a positioning sleeve (2), a fixing ring (4), a fastening block (5), and a cylinder body (6) disposed on the fixed base (1), characterized in that, Two sets of symmetrical support legs (11) are installed on one side of the fixed seat (1). A feeding rack (12) is installed on the upper end of the support leg (11). Multiple pistons (7) are placed on the feeding rack (12). A slide rail (13) is installed on the side of the fixed seat (1) away from the support. The lower inner wall of the positioning sleeve (2) and the outer wall of the slide rail (13) are slidably connected. A first notch (22) is provided at one end of the positioning sleeve (2). A main shaft swashplate (3) is inserted into the inner wall of the positioning sleeve (2). A limit plate (32) is installed at one end of the main shaft swashplate (3). A plug shaft (33) is installed on one side of the limit plate (32). A slot (331) is provided at one end of the plug shaft (33). A connecting plate (41) is installed on the side wall of the fixing ring (4). A fixing sleeve (42) that is inserted into the outer wall of the insert shaft (33) is installed on one end of the connecting plate (41). A second insert rod (421) that is inserted into the inner wall of the slot (331) is installed on one end of the fixing ring (4) near the inside of the fixing sleeve (42). A limiting shaft (43) is installed on the outer wall of the fixing sleeve (42). A plurality of mounting grooves (431) are opened on the side wall of the limiting shaft (43). The plurality of fastening blocks (5) rotate between each other via a pin (51) and are located between the main shaft swashplate (3) and the retaining ring (4).

2. The spindle swashplate cylinder insertion fixture according to claim 1, characterized in that, The positioning sleeve (2) has a first insert rod (21) installed on the inner wall of one end, and the main shaft swashplate (3) has an insert sleeve (31) installed at the end near the first insert rod (21) that is inserted and fixed to the outer wall of the first insert rod (21).

3. The spindle swashplate cylinder entry fixture according to claim 2, characterized in that, One end of the fixed ring (4) has a second notch (44) of the same size as the first notch (22). The first notch (22) and the second notch (44) allow the piston (7) to be inserted laterally into the limiting plate (32) at one end of the main shaft swashplate (3).

4. The spindle swashplate cylinder entry fixture according to claim 3, characterized in that, The inner wall of the limiting shaft (43) and the outer wall of the fixing sleeve (42) are rotatably connected, and the inner wall of the mounting groove (431) and the outer wall of the piston (7) abut against each other.

5. The spindle swashplate cylinder insertion fixture according to claim 4, characterized in that, The multiple fastening blocks (5) are elongated in the non-working state. The inner sidewalls of the multiple fastening blocks (5) that surround each other in a ring abut against the outer wall of the piston (7). The sidewalls of two adjacent fastening blocks (5) are fitted with compression blocks (52).

6. The spindle swashplate cylinder insertion fixture according to claim 5, characterized in that, The cylinder (6) has multiple piston grooves (61) that are inserted into the piston (7). After the fixing ring (4) is removed, the cylinder (6) is inserted into and fixed to the outer wall of the piston (7) away from the limiting block.

7. The spindle swashplate cylinder insertion fixture according to claim 1, characterized in that, One end of the piston (7) is slidably connected to the outer wall of the feed rack (12) which is provided with a snap-fit ​​mechanism, and the end of the feed rack (12) is set at an angle upward.

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