Spline shaft and spline sleeve fixing device

Abstract

The utility model discloses a spline shaft and spline housing fixing device which comprises a machine frame, a first abutting head is fixed to the inner wall of one side of the machine frame, a threaded groove is fixed to the inner wall of the other side of the machine frame, a threaded rod is connected to the threaded groove in a threaded mode, and a second abutting head is fixed to one end of the threaded rod. An auxiliary supporting device is arranged on the bottom wall of the interior of the rack and used for supporting a spline shaft, a spline sleeve fixing assembly is arranged at the top of the rack and used for fixing a spline sleeve, the spline sleeve fixing assembly comprises an insertion rod fixed to the top of the rack, and an n-shaped frame is fixed to the insertion rod; the fixing device for the spline shaft and the spline housing relates to the technical field of fixing devices, and the fixing device for the spline shaft and the spline housing can assist in supporting the spline shaft before the spline shaft is fixed, so that the spline shaft is conveniently fixed, the convenience of the device is improved, and more labor is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of fixing devices, in particular to a fixing device for a spline shaft and a spline sleeve. Background Technique

[0002] When strengthening a spline shaft and a spline sleeve, generally, a fixing device is used to install the spline shaft and the spline sleeve. The existing fixing device structure can basically meet the daily use requirements, but there are still some areas that need improvement.

[0003] When strengthening a spline shaft and a spline sleeve, generally, the raw material is fixed on a machine tool, and the spline shaft or the spline sleeve is processed by the machine tool. After processing the spline shaft or the spline sleeve, defects may occur. When defects occur, manual repair by workers may be required. During repair, generally, the spline shaft is placed on the fixing device, and the spline shaft is fixed by pressing it with a bolt. Since a general fixing device may require an operator to hold the spline shaft with one hand and turn the bolt with the other hand to fix the spline shaft in the fixing device, and since the spline shaft is heavy, it may be laborious for the operator to hold the spline shaft. For this reason, we propose a fixing device for a spline shaft and a spline sleeve. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a fixing device for a spline shaft and a spline sleeve, which solves the existing problems.

[0005] To achieve the above purposes, the utility model is realized through the following technical solutions: A fixing device for a spline shaft and a spline sleeve, including a frame, a first pressing head is fixed on one inner wall of the frame, a threaded groove is fixed on the other inner wall, a threaded rod is threadedly connected to the threaded groove, a second pressing head is fixed at one end of the threaded rod, an auxiliary supporting device is arranged on the bottom wall inside the frame for supporting the spline shaft, a spline sleeve fixing component is arranged on the top of the frame for fixing the spline sleeve, and the spline sleeve fixing component includes a plug rod fixed on the top of the frame, a U-shaped frame is fixed on the plug rod, and a locking bolt is threadedly connected to the U-shaped frame.

[0006] Preferably, the ends of the first pressing head and the second pressing head are both processed with arc transitions.

[0007] Preferably, the auxiliary support device includes a lead screw, which is rotatably installed on the frame through a bearing. One end of the lead screw is installed at the output end of a motor, and the motor is fixed on the frame. A plurality of fixing brackets are fixed on the motor, and a limiting rod is fixed on the fixing bracket. A movable plate is sleeved on the limiting rod. One end of the movable plate is hinged with a connecting rod. A limiting groove is installed on the inner bottom wall of the frame. One end of the connecting rod is connected with a limiting block that is slidably clamped in the limiting groove, and an arc-shaped plate is fixed at the top of the limiting block.

[0008] Preferably, the inner surface size of the arc-shaped plate is adapted to the outer diameter size of the spline shaft.

[0009] Preferably, the movable plate is provided with a through hole whose inner diameter size is adapted to the outer diameter size of the limiting rod, and the limiting rod is movably inserted into the through hole.

[0010] Preferably, the outer diameter size of the insertion rod is adapted to the inner diameter size of the spline sleeve, and the end of the insertion rod is processed with an arc transition.

[0011] Beneficial effects

[0012] The utility model provides a fixing device for a spline shaft and a spline sleeve. Compared with the prior art, the following beneficial effects are achieved:

[0013] 1. For this fixing device for a spline shaft and a spline sleeve, the two ends of the spline shaft are fixed by the first pressing head and the second pressing head, which is convenient for its maintenance. By setting the auxiliary support device, which includes a lead screw, a motor, etc., before the two ends of the spline shaft are fixed by the first pressing head and the second pressing head, the motor is started to drive the lead screw to rotate, driving the fixing bracket to rotate, driving the movable plate to rotate, and driving the limiting block at one end of the connecting rod to slide in the limiting groove, so as to lift and adjust the arc-shaped plate, and thus the arc-shaped plate can be used to jack up and assist in supporting the spline shaft before fixing, so as to facilitate the fixing of the spline shaft, improve the convenience of the device, and be more labor-saving.

[0014] 2. For this fixing device for a spline shaft and a spline sleeve, a spline sleeve fixing component is arranged at the top of the frame. The spline sleeve fixing component includes an insertion rod, a C-shaped frame, etc. When fixing the spline sleeve, only need to directly sleeved the spline sleeve on the insertion rod, and tighten the locking bolt to lock and fix the outer wall of the spline sleeve by using the locking bolt, so as to facilitate the maintenance after the spline sleeve is fixed, facilitate the repair by workers, and improve the practicability of the device. Description of the drawings

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the structure of the spline sleeve fixing component of the utility model;

[0017] Figure 3 For the present utility model Figure 1 Schematic diagram of a partial enlarged structure.

[0018] In the figure: 1, frame; 2, first pressing head; 3, threaded groove; 4, threaded rod; 5, second pressing head; 6, auxiliary support device; 61, lead screw; 62, motor; 63, fixing bracket; 64, limiting rod; 65, movable plate; 66, connecting rod; 67, limiting groove; 68, limiting block; 69, arc-shaped plate; 7, spline sleeve fixing component; 71, inserting rod; 72, U-shaped frame; 73, locking bolt. Specific embodiments

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

[0020] Please refer to Figures 1-3 , the present utility model provides two technical solutions:

[0021] Embodiment 1:

[0022] A fixing device for a spline shaft and a spline sleeve, comprising a frame 1, a first pressing head 2 is fixed on one inner wall of the frame 1, a threaded groove 3 is fixed on the other inner wall, a threaded rod 4 is threadedly connected to the threaded groove 3, a second pressing head 5 is fixed at one end of the threaded rod 4, an auxiliary support device 6 is arranged on the bottom wall inside the frame 1 for supporting the spline shaft, a spline sleeve fixing component 7 is arranged on the top of the frame 1 for fixing the spline sleeve, and the spline sleeve fixing component 7 comprises an inserting rod 71 fixed on the top of the frame 1, a U-shaped frame 72 is fixed on the inserting rod 71, and a locking bolt 73 is threadedly connected to the U-shaped frame 72.

[0023] Embodiment 2:

[0024] A fixing device for a spline shaft and a spline sleeve, comprising a frame 1, a first pressing head 2 is fixed on one inner wall of the frame 1, a threaded groove 3 is fixed on the other inner wall, a threaded rod 4 is threadedly connected to the threaded groove 3, a second pressing head 5 is fixed at one end of the threaded rod 4, an auxiliary support device 6 is arranged on the bottom wall inside the frame 1 for supporting the spline shaft, a spline sleeve fixing component 7 is arranged on the top of the frame 1 for fixing the spline sleeve, and the spline sleeve fixing component 7 comprises an inserting rod 71 fixed on the top of the frame 1, a U-shaped frame 72 is fixed on the inserting rod 71, and a locking bolt 73 is threadedly connected to the U-shaped frame 72.

[0025] In this embodiment, the ends of the first pressing head 2 and the second pressing head 5 are both processed with arc transitions to reduce the damage to the surface of the spline shaft when clamping and fixing both ends of the spline shaft; the auxiliary support device 6 includes a lead screw 61, and the lead screw 61 is rotatably installed on the frame 1 through a bearing. One end of the lead screw 61 is installed at the output end of the motor 62, and the motor 62 is fixed on the frame 1. A plurality of fixing brackets 63 are fixed on the motor 62, a limiting rod 64 is fixed on the fixing bracket 63, a movable plate 65 is sleeved on the limiting rod 64, one end of the movable plate 65 is hinged with a connecting rod 66, a limiting groove 67 is installed on the inner bottom wall of the frame 1, one end of the connecting rod 66 is connected with a limiting block 68 that is slidably clamped in the limiting groove 67, and an arc-shaped plate 69 is fixed at the top of the limiting block 68. Before fixing both ends of the spline shaft by the first pressing head 2 and the second pressing head 5, start the motor 62 to drive the lead screw 61 to rotate, drive the fixing bracket 63 to rotate, drive the movable plate 65 to rotate, drive the limiting block 68 at one end of the connecting rod 66 to slide in the limiting groove 67, so as to adjust the lifting of the arc-shaped plate 69, so as to assist in supporting the spline shaft before fixing through the lifting of the arc-shaped plate 69, so as to facilitate the fixing of the spline shaft, improve the convenience of the device, and be more labor-saving; the inner surface size of the arc-shaped plate 69 is adapted to the outer diameter size of the spline shaft, and the spline shaft is supported by the arc-shaped plate 69; a through hole with an inner diameter size adapted to the outer diameter size of the limiting rod 64 is opened on the movable plate 65, and the limiting rod 64 is movably inserted into the through hole, and the movable plate 65 can be sleeved on the limiting rod 64 and rotated; the outer diameter size of the insertion rod 71 is adapted to the inner diameter size of the spline sleeve, and the end of the insertion rod 71 is processed with an arc transition. The spline sleeve is supported by the insertion rod 71, and the arc transition at the end reduces the collision and wear of the spline sleeve.

[0026] When the fixing device for the spline shaft and the spline sleeve is used, the two ends of the spline shaft are fixed by the first pressing head 2 and the second pressing head 5, which is convenient for its maintenance. By setting the auxiliary support device 6, the auxiliary support device 6 includes a lead screw 61, a motor 62, etc. Then, before fixing the two ends of the spline shaft by the first pressing head 2 and the second pressing head 5, start the motor 62 to drive the lead screw 61 to rotate, drive the fixing bracket 63 to rotate, drive the movable plate 65 to rotate, drive the limiting block 68 at one end of the connecting rod 66 to slide in the limiting groove 67, so as to adjust the lifting of the arc-shaped plate 69, so as to assist in supporting the spline shaft before fixing through the lifting of the arc-shaped plate 69, so as to facilitate the fixing of the spline shaft, improve the convenience of the device, and be more labor-saving; in addition, a spline sleeve fixing component 7 is arranged on the top of the frame 1 of the present invention. The spline sleeve fixing component 7 includes an insertion rod 71, a U-shaped frame 72, etc. When fixing the spline sleeve, only need to directly sleeve the spline sleeve on the insertion rod 71, and tighten the locking bolt 73 to lock and fix the outer wall of the spline sleeve by using the locking bolt 73, so as to facilitate the maintenance after the spline sleeve is fixed, facilitate the repair by workers, and improve the practicability of the device.

[0027] Meanwhile, the content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0028] 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 order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising 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.

[0029] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A spline shaft and spline sleeve fixing device, comprising a frame (1), characterized in that: On one inner wall of the frame (1), a first pressing head (2) is fixed, and on the other inner wall, a threaded groove (3) is fixed. A threaded rod (4) is threadedly connected to the threaded groove (3). One end of the threaded rod (4) is fixed with a second pressing head (5). An auxiliary support device (6) is arranged on the inner bottom wall of the frame (1) to support the spline shaft. A spline sleeve fixing assembly (7) is arranged on the top of the frame (1) to fix the spline sleeve. The spline sleeve fixing assembly (7) includes a plug rod (71) fixed on the top of the frame (1). A U-shaped frame (72) is fixed on the plug rod (71). A locking bolt (73) is threadedly connected to the U-shaped frame (72).

2. A spline shaft and spline sleeve fixing device according to claim 1, characterized in that: The ends of the first pressing head (2) and the second pressing head (5) are both processed with arc transitions.

3. A spline shaft and spline sleeve fixing device according to claim 1, characterized in that: The auxiliary support device (6) includes a lead screw (61). The lead screw (61) is rotatably installed on the frame (1) through a bearing. One end of the lead screw (61) is installed at the output end of a motor (62). The motor (62) is fixed on the frame (1). A plurality of fixing frames (63) are fixed on the motor (62). A limiting rod (64) is fixed on the fixing frame (63). A movable plate (65) is sleeved on the limiting rod (64). One end of the movable plate (65) is hinged with a connecting rod (66). A limiting groove (67) is installed on the inner bottom wall of the frame (1). One end of the connecting rod (66) is connected with a limiting block (68) that is slidably clamped in the limiting groove (67). The top end of the limiting block (68) is fixed with an arc-shaped plate (69).

4. A spline shaft and spline sleeve fixing device according to claim 3, characterized in that: The inner surface size of the arc-shaped plate (69) is adapted to the outer diameter size of the spline shaft.

5. A spline shaft and spline sleeve fixing device according to claim 4, characterized in that: The movable plate (65) is provided with a through hole whose inner diameter size is adapted to the outer diameter size of the limiting rod (64). The limiting rod (64) is movably inserted into the through hole.

6. A spline shaft and spline sleeve fixing device according to claim 1, characterized in that: The outer diameter size of the plug rod (71) is adapted to the inner diameter size of the spline sleeve. The end of the plug rod (71) is processed with an arc transition.

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