Sensor mounting structure

Abstract

The utility model discloses a sensor mounting structure, which relates to the technical field of sensor mounting, and comprises a sensor rotating shaft fixedly connected to the top end of a sensor main body, a knurling head fixedly connected to the outer wall of the sensor rotating shaft, an O-shaped ring connected to the outer wall of the knurling head in a sleeving manner, a clamping groove formed in the inner wall of a rotating shaft of a swing cylinder, and a clamping groove formed in the inner wall of the rotating shaft of the swing cylinder, the outer wall of the swing cylinder rotating shaft is connected with a swing cylinder body in a sleeved mode, the bottom end of the swing cylinder rotating shaft is connected with a rail disc in an abutting mode, the O-shaped ring is connected into the clamping groove in a clamped mode, and the inner wall of the O-shaped ring is in a knurl shape and is connected with the outer wall of the bottom cover in a meshed mode. The O-shaped ring can block a gap between the knurling head and the swing cylinder rotating shaft, the problems that the structure is complex and the machining precision is required to be certain due to the fact that base limiting needs to be carried out on the sensor body are solved, and meanwhile the phenomenon that zero adjustment of the sensor body is not easy due to the use of base limiting is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of sensor installation, in particular to a sensor installation structure. Background Art

[0002] The potentiometer sensor is a special type of sensor that uses the principle of potentiometer to convert mechanical displacement into resistance or voltage output, and then it converts the output resistance or voltage into a signal for transmission.

[0003] In the prior art, Chinese patent application number CN213025606U discloses a mounting structure for a potentiometer, comprising a sleeve and a base for accommodating a fixed potentiometer body. The base is provided with a shaft hole corresponding to a rotating shaft, the sleeve is inserted into the shaft hole, and one end of the sleeve is sleeved outside the rotating shaft and can rotate together with the rotating shaft in the shaft hole, while the other end of the sleeve becomes an operating end. The utility model proposes leaving a certain gap between the sleeve and the potentiometer shaft to prevent the rotating shaft from shifting too much relative to the potentiometer body.

[0004] However, since a gap must be left between the sleeve and the potentiometer shaft, the sensor body also requires an additional base for position limitation, which makes the structure complex and has certain requirements on processing accuracy. At the same time, the additional base limitation makes it difficult for the sensor to adjust the potentiometer zero position. Utility Model Content

[0005] The purpose of the utility model is to provide a sensor installation structure to solve the technical problem in the prior art that a gap needs to be left between the shaft sleeve and the potentiometer shaft, which requires an additional base for limiting the sensor body.

[0006] The technical problem to be solved by the present invention can be achieved through the following technical solutions:

[0007] A sensor mounting structure, comprising:

[0008] A sensor body, wherein the top of the sensor body is fixedly connected to a sensor shaft, an outer wall of the sensor shaft is fixedly connected to a knurled head, an outer wall of the knurled head is sleeved with an O-ring, and the outer wall of the knurled head is knurled;

[0009] The swing cylinder shaft has a slot on its inner wall, the outer wall of which is sleeved with the swing cylinder body, the bottom end of which is abutted against the track disc, the O-ring is clamped and connected in the slot, the inner wall of the O-ring is knurled, and the inner wall of the O-ring is meshingly connected to the outer wall of the bottom cover;

[0010] The bottom cover is arranged at the bottom end of the swing cylinder body and is abutted and connected with the swing cylinder body.

[0011] As a further solution of the present invention: the bottom end of the sensor body is fixedly connected to a sensor fixing bracket, the top of the sensor fixing bracket is fixedly connected to the track disc, and a circular hole is opened on the top of the sensor fixing bracket around the axis of the bottom cover, and the knurled head passes through the circular hole without contacting the circular hole.

[0012] As a further solution of the present invention: positioning holes are opened on both sides of the top of the sensor fixing frame, positioning columns are provided on the inner walls of the positioning holes and are abutted and connected with the positioning columns, and the bottom ends of the positioning columns are fixedly connected to the sensor body.

[0013] As a further solution of the present invention: the bottom cover is fixedly connected to the bottom end of the sensor fixing bracket.

[0014] As a further solution of the present invention: circular waist holes are respectively opened on both sides of the track disc around the axis of the swing cylinder shaft, and fixing bolts are slidably connected to the inner walls of the circular waist holes.

[0015] As a further solution of the present invention: fixing holes are respectively opened on both sides of the bottom of the swing cylinder shaft, and the inner walls of the fixing holes are fixedly connected with fixing bolts.

[0016] Beneficial effects of the utility model:

[0017] 1. When the sensor body is applied to the swing cylinder body and the swing cylinder shaft, the swing cylinder shaft can rotate in the swing cylinder body, and the sensor body detects the rotation of the swing cylinder shaft and transmits the signal to the electrical control system of the prior art, thereby achieving a precise deceleration effect on the swing cylinder shaft. When the swing cylinder shaft rotates, the swing cylinder shaft drives the knurled head to rotate through the inner wall of the slot and the O-ring. The knurled head transmits the rotation speed of the swing cylinder shaft to the sensor body through the sensor shaft, thereby achieving the effect of the sensor body detecting the rotation speed of the swing cylinder shaft. Among them, the O-ring can seal the gap between the knurled head and the swing cylinder shaft, avoiding the problem of complex structure and certain requirements for processing accuracy caused by the need to limit the sensor body to the base, and at the same time, avoiding the phenomenon that the sensor body is difficult to adjust to zero due to the use of the base limit.

[0018] 2. Due to the transition of the O-ring, the axial force and radial force on the sensor shaft can be reduced to a great extent, that is, there will not be excessive abnormal contact force between the sensor shaft and the resistor inside the sensor body, thereby improving the service life of the sensor body and the quality of the sensor body installation structure. The bottom cover can seal the working environment of the sensor body and the sensor shaft to prevent dust from entering the bottom of the swing cylinder shaft, thereby affecting the working environment of the sensor body and the sensor shaft, and preventing dust from entering the connection between the sensor body and the sensor shaft, increasing friction, and affecting the accuracy of the sensor body in detecting the swing cylinder shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a partial cross-sectional view of the overall structure of the utility model;

[0022] Figure 3 For the utility model Figure 2 A magnified schematic diagram of the structure at A;

[0023] Figure 4 For the utility model Figure 2 A magnified schematic diagram of the structure at B;

[0024] Figure 5 This is a schematic structural diagram of the sensor fixing frame of the present utility model;

[0025] Figure 6 This is a front view of the sensor fixing frame structure of the present utility model;

[0026] Figure 7 This is a top view of the sensor fixing frame structure of the present invention.

[0027] In the figure: 2. Sensor fixing bracket; 3. Knurled head; 4. Track disc; 5. Bottom cover; 6. O-ring; 7. Swing cylinder body; 8. Swing cylinder shaft; 9. Slot; 10. Fixing bolt; 11. Sensor body; 12. Sensor shaft; 13. Fixing hole; 14. Ring waist hole; 15. Positioning column; 16. Positioning hole. DETAILED DESCRIPTION

[0028] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] like Figure 1-Figure 7 As shown, a sensor installation structure includes: a sensor body 11, a swing cylinder shaft 8 and a bottom cover 5,

[0030] The top of the sensor body 11 is fixedly connected to the sensor shaft 12, and the outer wall of the sensor shaft 12 is fixedly connected to the knurled head 3, and the outer wall of the knurled head 3 is sleeved with an O-ring 6, and the outer wall of the knurled head 3 is knurled. A slot 9 is provided on the inner wall of the swing cylinder shaft 8, and the outer wall of the swing cylinder shaft 8 is sleeved with the swing cylinder body 7. The bottom end of the swing cylinder shaft 8 is abutted and connected with the track disc 4, and the O-ring 6 is clamped and connected in the slot 9. The inner wall of the O-ring 6 is knurled, and the inner wall of the O-ring 6 is meshingly connected with the outer wall of the bottom cover 5. When the sensor body 11 is applied to the swing cylinder body 7 and the swing cylinder shaft 8, the swing cylinder shaft 8 can rotate in the swing cylinder body 7. The sensor body 11 detects the rotation of the swing cylinder shaft 8 and transmits the signal to the electrical control system of the prior art, thereby achieving a precise deceleration effect on the swing cylinder shaft 8. When the swing cylinder shaft 8 rotates, the swing cylinder shaft 8 passes through the inner wall of the slot 9 and the O-ring The ring 6 pushes and drives the knurled head 3 to rotate, and the knurled head 3 transmits the rotation speed of the swing cylinder shaft 8 to the sensor main body 11 through the sensor shaft 12, thereby realizing the effect of the sensor main body 11 detecting the rotation speed of the swing cylinder shaft 8. Among them, the O-ring 6 can seal the gap between the knurled head 3 and the swing cylinder shaft 8, avoiding the problem of structural complexity and certain requirements for processing accuracy caused by the need to limit the sensor main body 11 with a base, and at the same time, avoiding the phenomenon that the use of the base limit makes it difficult for the sensor main body 11 to be zero-positioned. It should be noted that due to the transition of the O-ring 6, the axial force and radial force on the sensor shaft 12 can be greatly reduced, that is, there will be no excessive abnormal contact force between the sensor shaft 12 and the internal resistor of the sensor main body 11, thereby improving the service life of the sensor main body 11 and the quality of the installation structure of the sensor main body 11;

[0031] The bottom cover 5 is arranged at the bottom end of the swing cylinder body 7 and is connected to the swing cylinder body 7. The bottom cover 5 can seal the working environment of the sensor body 11 and the sensor shaft 12 to prevent dust from entering the bottom of the swing cylinder shaft 8, thereby affecting the working environment of the sensor body 11 and the sensor shaft 12, and preventing dust from entering the connection between the sensor body 11 and the sensor shaft 12, increasing friction, and affecting the accuracy of the sensor body 11 in detecting the swing cylinder shaft 8.

[0032] In some specific implementation schemes, the bottom end of the sensor body 11 is fixedly connected to the sensor fixing frame 2, the top of the sensor fixing frame 2 is fixedly connected to the track disc 4, and a circular hole is opened on the top of the sensor fixing frame 2 around the axis of the bottom cover 5. The knurled head 3 passes through the circular hole and does not contact the circular hole. When the sensor body 11 is installed at the bottom of the swing cylinder shaft 8, the sensor body 11 is first fixed on the sensor fixing frame 2, and the O-ring 6 is put on the knurled head 3. Then the staff controls the track disc 4 to insert the knurled head 3 into the bottom of the swing cylinder shaft 8. At the same time, the O-ring 6 is embedded in the slot 9.

[0033] In some specific embodiments, positioning holes 16 are provided on both sides of the top of the sensor fixing frame 2, and positioning columns 15 are provided on the inner walls of the positioning holes 16 and are abutted and connected with the positioning columns 15. The bottom ends of the positioning columns 15 are fixedly connected to the sensor body 11. When the sensor body 11 is fixed on the sensor fixing frame 2, the positioning columns 15 are inserted into the positioning holes 16, and the positioning columns 15 and the inner walls of the positioning holes 16 abut against each other to provide positioning for the top of the sensor body 11, thereby ensuring that both the top and bottom of the sensor body 11 are positioned. When the sensor body 11 is running, vibration is further avoided from affecting the stability of the top of the sensor body 11.

[0034] In some specific implementation schemes, the bottom cover 5 is fixedly connected to the bottom end of the sensor fixing frame 2. When the sensor body 11 is installed at the bottom of the swing cylinder shaft 8, the staff fixes the bottom cover 5 to the bottom end of the sensor fixing frame 2, thereby achieving the effect of sealing the sensor body 11.

[0035] In some specific implementation schemes, circular waist holes 14 are respectively opened on both sides of the track disc 4 around the axis of the swing cylinder shaft 8, and the inner wall of the circular waist hole 14 is slidably connected with a fixing bolt 10. When the knurled head 3 is inserted into the bottom of the swing cylinder shaft 8 and the O-ring 6 is embedded in the slot 9, the sensor body 11 should be in the zero position. When it is found that the sensor body 11 is not in the zero position, the staff rotates the sensor fixing frame 2, and the sensor fixing frame 2 drives the sensor body 11 to rotate. At this time, the knurled head 3 and the sensor shaft 12 do not rotate with the sensor body 11, thereby achieving the effect of adjusting the sensor body 11 to the zero position, further ensuring the accuracy of the sensor body 11 during operation. The staff controls the sensor fixing frame 2 to directly adjust the sensor body 11, which is more convenient than removing the sensor body 11 from the bottom of the swing cylinder shaft 8 for adjustment. Among them, when the track disc 4 rotates with the sensor fixing frame 2, the fixing bolt 10 can slide along the inner wall of the circular waist hole 14.

[0036] In some specific implementation schemes, fixing holes 13 are respectively opened on both sides of the bottom of the swing cylinder shaft 8, and the inner walls of the fixing holes 13 are fixedly connected to the fixing bolts 10. When the sensor body 11 is installed at the bottom of the swing cylinder shaft 8 through the sensor fixing frame 2, the staff fixes the fixing bolts 10 in the fixing holes 13 opened on the swing cylinder shaft 8. The fixing bolts 10 fix the sensor body 11 by abutting against the bottom end of the track disc 4. When the sensor body 11 is adjusted to the zero position, the staff directly controls the sensor fixing frame 2 to rotate, which is convenient to operate.

[0037] The above describes several embodiments of the present invention in detail, but the present invention is not limited to these embodiments and should not be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A sensor mounting structure, characterized in that: include: A sensor body (11), the top of the sensor body (11) is fixedly connected to a sensor shaft (12), the outer wall of the sensor shaft (12) is fixedly connected to a knurled head (3), the outer wall of the knurled head (3) is sleeved with an O-ring (6), and the outer wall of the knurled head (3) is knurled; A swing cylinder shaft (8), the inner wall of which is provided with a slot (9), the outer wall of which is sleeved and connected to a swing cylinder body (7), the bottom end of which is abutted and connected to a track disc (4), the O-ring (6) being clamped and connected in the slot (9), the inner wall of which is knurled, and the inner wall of which is meshingly connected to the outer wall of the bottom cover (5); A bottom cover (5) is provided at the bottom end of the swing cylinder body (7) and is abutted and connected to the swing cylinder body (7).

2. A sensor mounting structure according to claim 1, characterized in that: The bottom end of the sensor body (11) is fixedly connected to a sensor fixing frame (2), the top end of the sensor fixing frame (2) is fixedly connected to the track disc (4), a circular hole is opened at the top of the sensor fixing frame (2) around the axis of the bottom cover (5), and the knurled head (3) passes through the circular hole without contacting the circular hole.

3. A sensor mounting structure according to claim 2, characterized in that: Positioning holes (16) are provided on both sides of the top of the sensor fixing frame (2); positioning columns (15) are provided on the inner walls of the positioning holes (16) and are abutted and connected with the positioning columns (15); and the bottom ends of the positioning columns (15) are fixedly connected to the sensor body (11).

4. A sensor mounting structure according to claim 2, characterized in that: The bottom cover (5) is fixedly connected to the bottom end of the sensor fixing frame (2).

5. The sensor mounting structure according to claim 1, characterized in that: Circular waist holes (14) are respectively provided on both sides of the track disc (4) around the axis of the swing cylinder shaft (8), and fixing bolts (10) are slidably connected to the inner walls of the circular waist holes (14).

6. A sensor mounting structure according to claim 5, characterized in that: Fixing holes (13) are respectively provided on both sides of the bottom of the swing cylinder shaft (8), and the inner walls of the fixing holes (13) are fixedly connected to the fixing bolts (10).

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