CN221055746U

CN221055746U - Gear key groove detection tool

Info

Publication number: CN221055746U
Application number: CN202322842089.3U
Authority: CN
Inventors: 邓媛媛; 李青
Original assignee: Sichuan Ningliang Precision Tools Co ltd
Current assignee: Sichuan Ningliang Precision Tools Co ltd
Priority date: 2023-10-23
Filing date: 2023-10-23
Publication date: 2024-05-31
Anticipated expiration: 2033-10-23

Abstract

The utility model provides a detection tool for a gear key slot, and belongs to the technical field of detection tools. Including the base, vertical first locating shaft that is provided with size and gear internal diameter adaptation on the base, be provided with first detection piece along the axial on the first locating shaft outer wall, and first detection piece is just to the axial lead with first locating shaft, still be equipped with the mounting bracket on the base, one side level of mounting bracket is provided with the second locating shaft of size and gear internal diameter adaptation, be equipped with on the mounting bracket be used for with the tooth's socket cooperation of the epaxial gear of second locating in order to fix a position the setting element of gear, there is the second detection piece along axial sliding connection on the second locating shaft outer wall, and the second detection piece is just to the axial lead of second locating shaft, the width of second detection piece is not greater than first detection piece. In the embodiment of the utility model, the first detection block and the second detection block penetrate into the key groove of the gear to detect the depth of the key groove and the angle between the key groove and the key groove, so that the effect of improving the delivery quality of the gear is achieved.

Description

Gear key groove detection tool

Technical Field

The utility model relates to the technical field of detection tools, in particular to a detection tool for a gear key slot.

Background

The gear transmission is the most widely applied transmission form in mechanical transmission, and has the characteristics of more accurate transmission, high working efficiency and reliable work. In practical application, the gear is generally sleeved on the rotating shaft, a key slot is radially formed in the inner side wall of the gear along the self-body, and a key bar with an adaptive size is arranged on the outer wall of the rotating shaft. The key bar is inserted into the key groove so as to enable the gear and the rotating shaft to synchronously rotate, thereby achieving the purpose of transmission.

The key slot of the gear is formed by operating equipment by a worker to drive the broaching tool to broach the inner side wall of the gear, and in the actual machining process, the depth direction of the broached key slot is easily deviated from the radial direction of the gear due to manual operation and stress vibration of the gear, so that a key bar on a rotating shaft cannot be inserted into the key slot of the gear. In addition, due to the production process requirements, the angles between the key grooves and the tooth grooves of the gears also need to be unified. Therefore, after the gear key groove broaching is completed, the depth direction of the key groove and the angle between the key groove and the tooth groove need to be sequentially detected.

Disclosure of utility model

In view of the above problems, the utility model provides a detection tool for a gear key slot.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

The utility model provides a detection frock of gear keyway, the on-line screen storage device comprises a base, the vertical first locating shaft that is provided with size and gear internal diameter adaptation on the base, be provided with first detection piece along the axial on the first locating shaft outer wall, and first detection piece is just to the axial lead with first locating shaft, first detection piece is used for pegging graft in the keyway of the epaxial gear of first locating in order to detect the keyway once, still be equipped with the mounting bracket on the base, one side level of mounting bracket is provided with the second locating shaft of size and gear internal diameter adaptation, be equipped with on the mounting bracket be used for with the tooth's socket cooperation of the epaxial gear of second locating in order to fix a position the setting element of gear, be connected with the second detection piece along axial sliding on the second locating shaft outer wall, and the second detection piece is just to the axial lead of second locating shaft, the width of second detection piece is not greater than first detection piece, the second detection piece is used for sliding in the keyway of the epaxial gear of passing through the location of business turn over second locating in order to carry out the secondary detection.

Further, the setting element includes locating pin and compression spring, along the radial mounting hole of seting up with the locating pin adaptation of second locating shaft on the mounting bracket, the recess that is used for holding compression spring is offered to the one end that the second locating shaft was kept away from to the mounting hole, compression spring is coaxial to be overlapped in the recess and is established on the locating pin outer wall, be connected with the spring sleeve that is used for restricting compression spring and slide out the recess in recess opening part on the mounting bracket, locating pin sliding connection is in the mounting hole, and the fixed dog that is provided with external diameter and recess adaptation on the locating pin outer wall, compression spring is used for driving the dog and is close to the second locating shaft so that the locating pin removes the grafting and carries out in the tooth's socket of the epaxial gear of second locating.

Further, one end of the locating pin, which is close to the second locating shaft, is conical, and the conical tip is fixedly provided with an anti-skid block.

Further, one end of the locating pin, which is far away from the second locating shaft, penetrates out of the spring sleeve and is connected with a handle.

Further, a connecting hole is formed in the side wall of the locating pin, at one end far away from the second locating shaft, in a radial penetrating mode, a rotating shaft is inserted into the connecting hole, two ends of the rotating shaft are fixedly connected with supporting frames, one end of each supporting frame is arc-shaped, and the other end of each supporting frame is fixedly connected with the handle.

Further, one end of the second detection block is fixedly connected with a guide rod.

The beneficial effects of the utility model are as follows: when the gear is sleeved on the first positioning shaft, if the first detection block can pass through the key groove of the gear, the depth direction of the key groove is shown to be radially coincident with the first detection block, the gear can be fixed on the second positioning shaft through the positioning piece, then the second detection block slides to be close to the gear, if the second detection block can pass through the key groove, the angle between the key groove and the tooth groove of the gear is shown to be qualified, and the embodiment of the utility model can timely detect the gear with the deviation in the depth direction of the key groove and the gear with the deviation in the angle between the key groove and the tooth groove, so that the outgoing quality of the gear is improved.

Drawings

Fig. 1 is a schematic diagram of an overall structure of a gear keyway detection tool according to an embodiment of the application.

Fig. 2 is a schematic diagram illustrating a cross-sectional structure of a mounting frame of a gear key slot detection tool according to an embodiment of the application.

Fig. 3 is an enlarged partial schematic view of the portion a in fig. 2.

1, A base; 2. a first positioning shaft; 3. a first detection block; 4. a mounting frame; 41. a groove; 5. a second positioning shaft; 6. a positioning piece; 61. a positioning pin; 611. a stop block; 62. a compression spring; 7. a second detection block; 8. a spring sleeve; 9. an anti-skid block; 10. a handle; 11. a support frame; 12. and a guide rod.

Detailed Description

In order to better understand the above technical solutions, the following detailed description will refer to the accompanying drawings and specific embodiments.

The embodiment of the application discloses a detection tool for a gear key groove, which comprises a base 1, wherein a first positioning shaft 2 with the size matched with the inner diameter of a gear is vertically connected to the base 1 through bolts, a sliding groove is axially formed in the outer wall of the first positioning shaft 2, and a first detection block 3 is connected in the sliding groove in a sliding mode. The first detection block 3 is opposite to the axis line of the first positioning shaft 2, and the first detection block 3 is used for penetrating into a key groove of a gear on the first positioning shaft 2 to detect the key groove once. When the gear is sleeved on the first positioning shaft 2, if the first detection block 3 can pass through the key slot of the gear, the depth direction of the key slot is shown to be radially coincident with the depth direction of the first detection block; if the first detecting block 3 cannot pass through the gear, the depth direction of the key groove deviates from the radial direction of the key groove, and the key groove needs to be reworked.

The base 1 is also connected with a mounting frame 4 by bolts, and one side of the mounting frame 4 is horizontally connected with a second positioning shaft 5 with the size matched with the inner diameter of the gear by bolts. The mounting frame 4 is provided with a locating piece 6 which is matched with a tooth groove of a gear on the second locating shaft 5 to locate the gear, the outer wall of the second locating shaft 5 is also provided with a sliding groove along the axial direction, a second detecting block 7 is connected in the sliding groove in a sliding way, and the second detecting block 7 is opposite to the axial lead of the second locating shaft 5. The second detection block 7 is used for sliding into and out of a key slot of the gear positioned on the second positioning shaft 5 to carry out secondary detection. The gear can be fixedly arranged on the second positioning shaft 5 through the positioning piece 6, then the second detection block 7 is slid to enter and exit the key slot of the gear, and if the second detection block 7 can slide to pass through the key slot, the angle between the key slot and the tooth slot of the gear is qualified; if the second detection block 7 cannot slip through the key slot, the angle between the key slot and the tooth slot of the gear is not qualified. Since the accuracy requirement of primary detection on the width of the key groove is higher than that of secondary detection, the width of the second detection block 7 is not larger than that of the first detection block 3.

Referring to fig. 3, the positioning member 6 includes a positioning pin 61 and a compression spring 62, a mounting hole adapted to the positioning pin 61 is radially formed in the mounting bracket 4 along the second positioning shaft 5, and a groove 41 for accommodating the compression spring 62 is formed in an end of the mounting hole away from the second positioning shaft 5. The compression spring 62 is coaxially sleeved on the outer wall of the positioning pin 61 in the groove 41, and a spring sleeve 8 for limiting the compression spring 62 from sliding out of the groove 41 is connected to the mounting frame 4 at the opening of the groove 41 through bolts. The positioning pin 61 is slidably connected in the mounting hole, and a stop block 611 with an outer diameter matched with the groove 41 is integrally fixed on the outer wall of the positioning pin 61. One end of the compression spring 62 abuts against the spring sleeve 8, and the other end abuts against the stopper 611. The compression spring 62 can drive the stop block 611 to approach the second positioning shaft 5 through elastic stress in the stretching process so as to enable the positioning pin 61 to be movably inserted into a tooth groove of a gear on the second positioning shaft 5, thereby positioning the gear, and enabling the second detection block 7 to slide into and out of the tooth groove of the gear.

In order to improve the fixing effect of the positioning pin 61 on the gear on the second positioning shaft 5, one end of the positioning pin 61 close to the second positioning shaft 5 is conical, and the conical tip is welded with the anti-skid block 9. In the embodiment of the application, the anti-skid block 9 can be hemispherical, and the hemispherical surface is frosted to increase the friction force between the anti-skid block and the two side walls of the tooth socket of the gear.

After the secondary detection is completed, in order to facilitate the staff to push the locating pin 61 away from the second locating shaft 5 to loosen the gear, a through hole with the size matched with the locating pin 61 is formed in the center of the spring sleeve 8, and one end, away from the second locating shaft 5, of the locating pin 61 penetrates out of the through hole and is connected with the handle 10.

Specifically, a connecting hole is radially and penetratingly formed in one end, far away from the second positioning shaft 5, of the side wall of the positioning pin 61, a rotating shaft is inserted into the connecting hole, two ends of the rotating shaft are integrally and fixedly provided with a supporting frame 11, one end of the supporting frame 11 is arc-shaped, and the other end of the supporting frame 11 is welded and fixed with the handle 10. When the gear key groove is detected on the second positioning shaft 5, the operator can drive the handle 10 to rotate around the rotating shaft so as to enable the arc-shaped side wall of the supporting frame 11 to be close to the center position of the spring sleeve 8 until one end of the arc-shaped side wall is abutted with one surface of the spring sleeve 8 far away from the compression spring 62, and a supporting point is formed at the abutting position. And then the handle 10 is continuously rotated to drive the top of the arc-shaped side wall of the support frame 11 to move to the center position of the spring sleeve 8, so that the rotating shaft on the support frame 11 can support the positioning pin 61 while rotating, and the positioning pin 61 is far away from the second positioning shaft 5 and the gear is loosened.

After the locating piece 6 locates the gear on the second locating shaft 5, in order to facilitate the staff to push and pull the second detection block 7 to slide into and out of the key slot of the gear for secondary detection, one end of the second detection block 7 is welded with a guide rod 12, so that the staff can push and pull in a handheld manner.

The implementation principle of the detection tool for the gear key groove provided by the embodiment of the application is as follows: in the use of the detection tool for the gear key slot, a first detection block 3 is axially arranged on the outer wall of the first positioning shaft 2, and when a gear is sleeved on the first positioning shaft 2, if the first detection block 3 can penetrate through the gear key slot, the depth direction of the key slot is shown to be radially coincident with the depth direction of the key slot. Install setting element 6 on the mounting bracket 4, along axial sliding connection having second detection piece 7 on the second locating shaft 5 outer wall, can fix the gear on second locating shaft 5 through setting element 6, later slide second detection piece 7 and be close to the gear, if second detection piece 7 can pass the keyway, then indicate that the angle between the tooth's socket of keyway and gear is qualified. The embodiment of the application can timely detect the gear with deviation in the depth direction of the key slot and deviation in the angle between the key slot and the tooth slot, and has the effect of improving the delivery quality of the gear.

It will be apparent to those skilled in the art that while preferred embodiments of the present utility model have been described, additional variations and modifications may be made to these embodiments once the basic inventive concepts are known to those skilled in the art. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the utility model. It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims

1. Detection frock of gear keyway, its characterized in that: including base (1), vertical first locating shaft (2) that are provided with size and gear internal diameter adaptation on base (1), be provided with first detection piece (3) along the axial on first locating shaft (2) outer wall, and first detection piece (3) just are to the axial lead of first locating shaft (2), first detection piece (3) are used for pegging graft in the keyway of entering gear on first locating shaft (2) and detect once, still be equipped with mounting bracket (4) on base (1), one side level of mounting bracket (4) is provided with second locating shaft (5) of size and gear internal diameter adaptation, be equipped with on mounting bracket (4) be used for with tooth's socket cooperation on second locating shaft (5) with locating gear's setting element (6), be connected with second detection piece (7) along axial sliding connection on second locating shaft (5) outer wall, and second detection piece (7) just are to the axial lead of second locating shaft (5), the width of second detection piece (7) is not greater than first detection piece (3), second detection piece (7) are used for carrying out the business turn over in the second locating shaft (5) after the second is used for detecting.

2. The gear keyway inspection tool of claim 1, wherein: the locating piece (6) comprises a locating pin (61) and a compression spring (62), the mounting hole matched with the locating pin (61) is radially formed in the mounting frame (4) along the second locating shaft (5), a groove (41) used for accommodating the compression spring (62) is formed in one end, far away from the second locating shaft (5), of the mounting hole, the compression spring (62) is coaxially sleeved on the outer wall of the locating pin (61) in the groove (41), a spring sleeve (8) used for limiting the compression spring (62) to slide out of the groove (41) is connected to the opening of the groove (41) in the mounting frame (4), the locating pin (61) is slidably connected in the mounting hole, a stop block (611) matched with the groove (41) is fixedly arranged on the outer wall of the locating pin (61), and the compression spring (62) is used for driving the stop block (611) to be close to the second locating shaft (5) so that the locating pin (61) can be moved and spliced in a tooth groove of a gear on the second locating shaft (5).

3. The gear keyway inspection tool of claim 2, wherein: one end of the locating pin (61) close to the second locating shaft (5) is conical, and an anti-slip block (9) is fixedly arranged at the conical tip.

4. The gear keyway inspection tool of claim 2, wherein: one end of the locating pin (61) far away from the second locating shaft (5) penetrates out of the spring sleeve (8) and is connected with a handle (10).

5. The gear keyway detection tool of claim 4, wherein: the side wall of the locating pin (61) is provided with a connecting hole in a penetrating mode along the radial direction at one end far away from the second locating shaft (5), a rotating shaft is inserted into the connecting hole, two ends of the rotating shaft are fixedly connected with a supporting frame (11), and one end of the supporting frame (11) is arc-shaped, and the other end of the supporting frame is fixedly connected with a handle (10).

6. The gear keyway inspection tool as set forth in any one of claims 1 to 5, wherein: one end of the second detection block (7) is fixedly connected with a guide rod (12).