Rack with adjustable function

Abstract

The utility model provides a rack with an adjustable function, which belongs to the technical field of racks and comprises a toothed plate, an adjusting mechanism and a limiting mechanism. A plurality of mounting holes are formed in the middle of the toothed plate, and a mounting cavity is formed in the toothed plate; an installation cavity is formed in a toothed plate, teeth are rotationally installed in an installation hole formed in the top of the toothed plate through a connecting rod, a worm gear is installed at the bottom of the connecting rod, a transmission rod is rotationally installed in the installation cavity, and a worm installed on the surface of the transmission rod is connected with the worm gear in a meshed mode. The worm drives the worm wheel to rotate so as to drive the transmission rod and the teeth at the top to perform angle adjustment on the toothed plate, so that a spur rack state is adjusted into a helical rack state, adjustment and conversion are conveniently performed according to a spur gear and a helical gear, and the application range of the rack is widened.

Description

Technical Field

[0001] The utility model relates to the technical field of racks, in particular to a rack with an adjustable function. Background Art

[0002] A rack is a special gear with teeth distributed on a bar-shaped body. Racks are also divided into spur racks and helical racks, which are used in pairs with spur cylindrical gears and helical cylindrical gears respectively; the tooth profile of the rack is a straight line rather than an involute (it is a plane for the tooth surface), which is equivalent to a cylindrical gear with an infinite pitch circle radius. The existing rack structure has low strength. After long-term use, the rack as a whole is prone to distortion and cannot be used, and has a short service life. Among them, the application number is "CN202122420004.3" A rack structure, the utility model realizes a kind of through the mutual cooperation of the rack body, the reinforcement mouth, the crossbeam, the fixed rod, the inclined beam, the matching block and the auxiliary rod. The rack structure greatly improves the structural strength of the rack body, so that the rack can bear pressure well and can be used in some harsh operating environments. It can effectively avoid distortion of the rack body and damage to the rack, and extend the service life of the rack. However, there is still room for improvement in the use of the rack: the existing rack structure is simple and has a single function. It can only match spur racks or helical racks. However, in the actual production process, it is necessary to select spur gears and helical gears according to actual conditions. Ordinary racks cannot be adjusted and cannot be used for different gears, which limits the scope of application of the rack. Utility Model Content

[0003] The purpose of the utility model is to provide a rack with an adjustable function to solve the problem that the existing rack proposed in the above background technology has a simple structure, a single function, and can only match a spur rack or a helical rack. However, in the actual production process, it is necessary to select spur gears and helical gears for use according to actual conditions. Ordinary racks cannot be adjusted and cannot be applied to different gears, which limits the application range of the rack.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rack with adjustable function, comprising a tooth plate, an adjustment mechanism and a limit mechanism;

[0005] Wherein: a plurality of mounting holes are opened in the middle of the tooth plate, a mounting cavity is opened inside the tooth plate, the mounting cavity is communicated with the mounting hole, a connecting rod is rotatably installed inside the mounting hole, and teeth are fixedly installed on the top of the connecting rod;

[0006] The adjustment mechanism comprises a worm wheel fixedly mounted at the bottom of the connecting rod, a transmission rod is rotatably mounted inside the mounting cavity, a worm is fixedly mounted on the surface of the transmission rod, and the worm is meshingly connected with the worm wheel;

[0007] The limiting mechanism includes limiting rods fixedly mounted on both sides of the bottom of the teeth, and limiting grooves are correspondingly provided on both sides of the mounting hole at the top of the tooth plate, and the limiting rods are inserted into the limiting grooves.

[0008] As a preferred solution of the utility model: an adjusting knob is fixedly mounted on one end of the transmission rod, an indicating arrow is engraved on the surface of the adjusting knob, and a scale line is engraved on one end surface of the toothed plate, and the indicating arrow corresponds to the scale line.

[0009] As a preferred solution of the utility model: anti-slip grooves are provided around the adjusting knob.

[0010] As a preferred solution of the utility model: fixing plates are fixedly installed on both sides of the tooth plate, and fixing bolts are threadedly connected on the surface of the fixing plates.

[0011] As a preferred solution of the utility model: weight-reducing grooves are provided in the middle of both sides of the tooth plate.

[0012] As a preferred solution of the utility model: reinforcing ribs are installed on the inner wall of the weight-reducing groove.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] (1) An installation cavity is provided inside the tooth plate, and the teeth are rotatably installed in the installation hole provided on the top of the tooth plate through a connecting rod. A worm wheel is installed at the bottom of the connecting rod, and a transmission rod is rotatably installed inside the installation cavity. The worm installed on the surface of the transmission rod is meshed with the worm wheel. When the transmission rod rotates to drive the worm to rotate, the worm drives the worm wheel to rotate, thereby driving the transmission rod and the teeth on the top to adjust the angle on the tooth plate, so that the spur rack state is adjusted to the helical rack state, which is convenient for adjustment and conversion according to the spur gear and the helical gear, thereby improving the application range of the rack;

[0015] (2) Through the provided limiting mechanism, when the teeth rotate on the surface of the tooth plate, the limiting rods on both sides of the bottom of the teeth move inside the limiting grooves opened on the top of the tooth plate, so that the teeth maintain stable rotation. At the same time, the limiting grooves play a role in limiting the adjustment range of the teeth. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the spur rack structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the helical rack structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the worm wheel and worm installation structure of the utility model;

[0019] Figure 4This is a schematic diagram of the scale line setting structure of the utility model.

[0020] In the figure: 1. tooth plate; 2. mounting hole; 3. mounting cavity; 4. connecting rod; 5. teeth; 6. adjustment mechanism; 61. worm gear; 62. transmission rod; 63. worm; 7. limit mechanism; 71. limit rod; 72. limit groove; 8. adjustment knob; 9. indicator arrow; 10. scale line; 11. anti-skid groove; 12. fixing plate; 13. fixing bolt; 14. weight reduction groove; 15. reinforcing rib. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-Figure 4 A rack with adjustable function, comprising: a tooth plate 1, an adjustment mechanism 6 and a limit mechanism 7; a plurality of mounting holes 2 are opened in the middle of the tooth plate 1, a mounting cavity 3 is opened inside the tooth plate 1, the mounting cavity 3 is communicated with the mounting hole 2, a connecting rod 4 is rotatably installed inside the mounting hole 2, and a tooth 5 is fixedly installed on the top of the connecting rod 4;

[0023] See also Figure 3 The adjusting mechanism 6 includes a worm gear 61 fixedly mounted at the bottom of the connecting rod 4 , a transmission rod 62 is rotatably mounted inside the mounting cavity 3 , a worm 63 is fixedly mounted on the surface of the transmission rod 62 , and the worm 63 is meshingly connected with the worm gear 61 .

[0024] During specific use: an installation cavity 3 is opened inside the tooth plate 1, and the teeth 5 are rotatably installed in the installation hole 2 opened on the top of the tooth plate 1 through the connecting rod 4. A worm wheel 61 is installed at the bottom of the connecting rod 4, and a transmission rod 62 is rotatably installed inside the installation cavity 3. The worm 63 installed on the surface of the transmission rod 62 is meshed and connected with the worm wheel 61. When the transmission rod 62 rotates to drive the worm 63 to rotate, the worm 63 drives the worm wheel 61 to rotate, thereby driving the transmission rod 62 and the top teeth 5 on the tooth plate 1 to adjust the angle, so that it can be adjusted from a spur rack state to a helical rack state, which is convenient for adjustment and transformation according to spur gears and helical gears, thereby improving the application range of the rack.

[0025] See also Figure 3The limiting mechanism 7 includes limiting rods 71 ​​fixedly mounted on both sides of the bottom of the tooth 5 , and limiting grooves 72 are correspondingly provided on both sides of the mounting hole 2 at the top of the tooth plate 1 , and the limiting rods 71 ​​are inserted into the limiting grooves 72 .

[0026] During specific use: when the tooth 5 rotates on the surface of the tooth plate 1, the limiting rods 71 ​​on both sides of the bottom of the tooth 5 move inside the limiting groove 72 opened on the top of the tooth plate 1, so that the tooth 5 maintains stable rotation. At the same time, the limiting groove 72 plays a role in limiting the adjustment range of the tooth 5.

[0027] See also Figure 4 An adjusting knob 8 is fixedly mounted at one end of the transmission rod 62, an indicating arrow 9 is engraved on the surface of the adjusting knob 8, a scale line 10 is engraved on the surface of one end of the tooth plate 1, the indicating arrow 9 corresponds to the scale line 10, and anti-slip grooves 11 are opened around the adjusting knob 8.

[0028] During specific use: the adjustment knob 8 installed at one end of the transmission rod 62 is used to drive the transmission rod 62 to rotate and adjust. An indicator arrow 9 is engraved on the surface of the adjustment knob 8, and the indicator arrow 9 corresponds to a scale line 10 engraved on the surface of one end of the tooth plate 1. The adjustment changes of the indicator arrow 9 and the scale line 10 can control the adjustment angle of the tooth 5 on the surface of the tooth plate 1, which is convenient for adjustment according to the angle of the bevel gear and for effective meshing and transmission of the tooth 5 and the bevel gear. The anti-slip grooves 11 opened around the adjustment knob 8 are convenient for increasing friction with the hand when the adjustment knob 8 is manually turned.

[0029] See also Figure 1 A fixing plate 12 is fixedly installed on both sides of the tooth plate 1, and a fixing bolt 13 is threadedly connected to the surface of the fixing plate 12.

[0030] During specific use: fixing plates 12 are fixedly installed on both sides of the tooth plate 1, and fixing bolts 13 are arranged on the surface of the fixing plate 12. The tooth plate 1 is fixed by the fixing bolts 13 on the surface of the fixing plate 12, which is convenient for installation when the rack is used as a fixed structure.

[0031] See also Figure 1 A weight-reducing groove 14 is provided in the middle of both sides of the tooth plate 1, and a reinforcing rib 15 is installed on the inner wall of the weight-reducing groove 14.

[0032] During specific use: the weight-reducing grooves 14 opened in the middle of both sides of the tooth plate 1 can reduce the structural weight of the tooth plate 1 , and the reinforcing ribs 15 installed inside the weight-reducing grooves 14 are convenient for improving the structural strength of the tooth plate 1 .

[0033] An installation cavity 3 is provided inside the tooth plate 1, and the teeth 5 are rotatably installed in the installation hole 2 provided on the top of the tooth plate 1 through the connecting rod 4. A worm wheel 61 is installed at the bottom of the connecting rod 4, and a transmission rod 62 is rotatably installed inside the installation cavity 3. A worm 63 installed on the surface of the transmission rod 62 is meshed and connected with the worm wheel 61. When the transmission rod 62 rotates to drive the worm 63 to rotate, the worm 63 drives the worm wheel 61 to rotate, thereby driving the transmission rod 62 and the teeth 5 on the top to adjust the angle on the tooth plate 1, so that the spur rack state can be adjusted to the helical rack state, which is convenient for adjustment and transformation according to the spur gear and the helical gear, thereby improving the application range of the rack.

[0034] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in the field. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for technical personnel in the field to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A rack with adjustable function, characterized in that: include: A tooth plate (1), wherein a plurality of mounting holes (2) are provided in the middle of the tooth plate (1), a mounting cavity (3) is provided inside the tooth plate (1), the mounting cavity (3) is communicated with the mounting hole (2), a connecting rod (4) is rotatably installed inside the mounting hole (2), and a tooth (5) is fixedly installed at the top end of the connecting rod (4); An adjusting mechanism (6), the adjusting mechanism (6) comprising a worm wheel (61) fixedly mounted at the bottom of the connecting rod (4), a transmission rod (62) rotatably mounted inside the mounting cavity (3), a worm (63) fixedly mounted on the surface of the transmission rod (62), and the worm (63) meshingly connected with the worm wheel (61); A limiting mechanism (7), the limiting mechanism (7) comprising limiting rods (71) fixedly mounted on both sides of the bottom of the tooth (5), limiting grooves (72) corresponding to both sides of the mounting hole (2) are provided at the top of the tooth plate (1), and the limiting rods (71) are inserted into the limiting grooves (72).

2. The rack with adjustable function according to claim 1, characterized in that: An adjusting knob (8) is fixedly mounted on one end of the transmission rod (62), an indicating arrow (9) is engraved on the surface of the adjusting knob (8), and a scale line (10) is engraved on the surface of one end of the toothed plate (1), the indicating arrow (9) corresponding to the scale line (10).

3. The rack with adjustable function according to claim 2, characterized in that: Anti-slip grooves (11) are provided around the adjusting knob (8).

4. The rack with adjustable function according to claim 1, characterized in that: Fixing plates (12) are fixedly mounted on both sides of the toothed plate (1), and fixing bolts (13) are threadedly connected to the surfaces of the fixing plates (12).

5. The rack with adjustable function according to claim 1, characterized in that: The middle parts of both sides of the tooth plate (1) are provided with weight-reducing grooves (14).

6. The rack with adjustable function according to claim 5, characterized in that: The inner wall of the weight-reducing groove (14) is provided with reinforcing ribs (15).

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