Large gear assembly pull positioning device

Abstract

The utility model relates to the field of gear workpieces, and discloses a large gear assembly tension positioning device, including two groups of half-tooth bodies, the two groups of half-tooth bodies are assembled to form an annular tooth body, two tension bolts are vertically penetrated at the junction of the two groups of half-tooth bodies, and the outer side of the tension bolts is provided with an upper pressure cover and a lower pressure cover for pressing the two groups of half-tooth bodies, and the threaded end of the top stud of the tension bolt is matched with a nut that keeps the upper pressure cover pressing the half-tooth body downward. The beneficial effect is that: the utility model provides an upper pressure cover and a lower pressure cover to respectively fasten the upper and lower sides of the end of the half-tooth body to ensure that the abutment of the two groups of half-tooth bodies can be kept flush, avoid the upper and lower misalignment of the gear assembly, and provide a wedge-shaped limiting pressure block embedded in the pressure groove of the half-tooth body to improve the structural connection stability of the two groups of half-tooth bodies; and a constraint plate as a pre-positioning structure of the upper pressure cover is provided, so that the two groups of half-tooth bodies can maintain stable abutment during the subsequent tightening of the nut, and the operation is more convenient.

Description

Technical Field

[0001] The utility model relates to the field of gear workpieces, in particular to a large gear assembly pulling and positioning device. Background Art

[0002] In order to consider processing and transportation, large gears are usually set as half-piece structures for assembly in the use area. During the installation process, considering the convenience of lifting and positioning, it is necessary to lift the half gear first, align it with the assembly mark, and insert the gear fixing bolt into the gear end face installation position. After the half gear is fully installed, the other half gear is lifted according to the assembly mark, the connection surfaces at both ends of the two half gears are pressed tightly, and the tension bolts are vertically inserted into the connection surface of the gear end. The axis of the tension bolt is perpendicular to the axis of the gear. This type of connection method causes the two gear end faces to be easily misaligned up and down, and the structural stability is poor. Utility Model Content

[0003] The purpose of the utility model is to provide a large gear assembly pulling and positioning device in order to solve the above-mentioned problem. An upper pressure cover and a lower pressure cover are provided to respectively tighten the upper and lower sides of the ends of the half-tooth bodies to ensure that the abutment points of the two groups of half-tooth bodies can remain flush and avoid upper and lower misalignment of the gear splicing points. A wedge-shaped limiting pressure block is provided to be embedded in the pressure groove of the half-tooth body to improve the structural connection stability of the two groups of half-tooth bodies. Details are explained below.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] The utility model provides a large gear assembly tension positioning device, comprising two groups of half gear bodies, the two groups of half gear bodies are assembled to form a circular gear body, two tension bolts are vertically penetrated at the connection between the two groups of half gear bodies, and the outer side of the tension bolts is provided with an upper pressure cover and a lower pressure cover for pressing the two groups of half gear bodies;

[0006] The top stud end of the tension bolt is threadedly matched with a nut that keeps the upper pressure cover pressing the half-tooth body downward, and a vertically extending support plate is fixed to the end of the half-tooth body. The upper and lower parts of the support plate away from the tension bolt are provided with inclined extending pressure grooves, and the upper and lower pressure covers are fixed with limiting pressure blocks adapted to the pressure grooves on the opposite sides.

[0007] The above-mentioned large gear assembly pulling and positioning device is adopted. When in use, the end faces of the support plates of the two groups of half teeth are abutted, and it is ensured that the pulling bolts are vertically inserted between the two groups of half teeth, and the lower pressure cover is placed on the bottom side of the support plates of the two groups of half teeth, and then the upper pressure cover is sleeved on the outside of the top stud end of the pulling bolt, and the constraint plate is inserted into the guide hole, and then the sliding rod with the sleeve spring is fixed to the countersunk hole, so as to use the spring to press the constraint plate downward, and use the constraint plate to push the upper pressure cover downward to keep the upper pressure cover and the lower pressure cover to pre-position the two groups of half teeth, and then rotate the nut to press the upper pressure cover downward, and lock the position of the upper pressure cover to ensure that the limiting pressure block is embedded in the pressure groove of the support plate, so that the two groups of half teeth are kept in abutment by the limiting pressure blocks on both sides, and at the same time, the upper and lower pressure covers are used to keep the end faces of the two groups of half teeth flush up and down, so as to complete the pulling, positioning and assembly installation of the half teeth.

[0008] Preferably, semicircular receiving grooves are provided on opposite sides of the support plates at the ends of the two groups of half teeth, and the receiving grooves of adjacent support plates together form through holes for passing the tension bolts.

[0009] Preferably, the upper pressure cover and the lower pressure cover are C-shaped frames with openings facing each other, and the upper pressure cover and the lower pressure cover are respectively pressed against and extend to the outer sides of the upper and lower parts of the support plate.

[0010] Preferably, a top hole for accommodating the tension bolts is vertically penetrated in the middle of the upper pressure cover, and a bottom hole is penetrated in the middle of the lower pressure cover corresponding to the top hole, and a restraining groove connected to the top hole is arranged on the top side of the upper pressure cover.

[0011] Preferably, a vertically extending guide hole is longitudinally penetrated through the middle of the stud end, a restraining plate is longitudinally penetrated in the guide hole, and a countersunk hole is arranged at the top end of the stud end, a sliding rod extending into the guide hole is arranged in the middle of the countersunk hole.

[0012] Preferably, the slide bar vertically penetrates the constraint plate, and the slide bar and the constraint plate are vertically slidably matched, and a spring is sleeved on the outside of the slide bar to keep the constraint plate pressed downward against the constraint groove.

[0013] Preferably, the width of the constraint plate is smaller than the width of the constraint groove.

[0014] Preferably, a disassembly head threadedly matched with the countersunk hole is fixed to the top of the sliding rod, and the top of the disassembly head is flush with the top of the stud end.

[0015] The beneficial effect is that the utility model arranges an upper pressure cover and a lower pressure cover on the outside of the tension screw to respectively fasten the upper and lower sides of the ends of the half tooth bodies, so as to ensure that the abutment of the two groups of half tooth bodies can be kept flush, avoid the upper and lower misalignment of the gear splicing, and arrange a wedge-shaped limiting pressure block to be embedded in the pressure groove of the half tooth body, thereby improving the structural connection stability of the two groups of half tooth bodies;

[0016] A constraint plate is also provided as a pre-positioning structure for the upper pressure cover. After the two groups of half-tooth bodies are assembled and tightened, the constraint plate is pushed by a spring to keep the upper pressure cover in a downward tightening state, so as to pre-position the two groups of half-tooth bodies, so that the two groups of half-tooth bodies can maintain stable abutment during the subsequent tightening of the nut, and the operation is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is the main structural diagram of the utility model;

[0019] Figure 2 It is a three-dimensional structural schematic diagram of the utility model;

[0020] Figure 3 It is a schematic diagram of the structural disassembly of the utility model;

[0021] Figure 4 It is a three-dimensional structural schematic diagram of the lower gland of the utility model;

[0022] Figure 5 It is a schematic diagram of the structural disassembly of the tension bolt of the utility model.

[0023] The following are the descriptions of the reference numerals:

[0024] 1. Half tooth body; 101. Support plate; 102. Accommodating groove; 103. Pressing groove; 2. Tension bolt; 201. Nut; 202. Guide hole; 203. Countersunk hole; 204. Sliding rod; 205. Constraint plate; 206. Spring; 3. Upper pressure cover; 301. Top hole; 302. Constraint groove; 4. Lower pressure cover; 401. Bottom hole; 5. Limiting pressure block. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0026] See also Figure 1-Figure 5As shown, the utility model provides a large gear assembly tension positioning device, including two groups of half tooth bodies 1, the two groups of half tooth bodies 1 are assembled to form a circular tooth body, two tension bolts 2 are vertically penetrated at the connection between the two groups of half tooth bodies 1, and an upper pressure cover 3 and a lower pressure cover 4 for pressing the two groups of half tooth bodies 1 are arranged on the outer side of the tension bolts 2, and the upper pressure cover 3 and the lower pressure cover 4 can be used to keep the spliced ​​end faces of the two groups of half tooth bodies 1 flush;

[0027] The threaded end of the stud at the top of the tension bolt 2 is equipped with a nut 201 that keeps the upper pressure cover 3 pressing the half-tooth body 1 downward, so that the upper pressure cover 3 and the lower pressure cover 4 are respectively pressed against the upper and lower sides of the half-tooth body 1 through the tension bolt 2, and a vertically extending support plate 101 is fixed to the end of the half-tooth body 1. The upper and lower parts of the support plate 101 away from the tension bolt 2 are provided with inclined extending pressure grooves 103, and the upper and lower parts of the support plate 101 are fixed with limiting pressure blocks 5 that are adapted to the pressure grooves 103 on the opposite sides of the upper and lower pressure covers 3 and 4, so as to maintain the tight state of the abutting surfaces of the two groups of half-tooth bodies 1 through the inclined groove-shaped pressure grooves 103 and the limiting pressure blocks 5.

[0028] As an optional embodiment, the opposite sides of the support plates 101 at the ends of the two groups of half teeth 1 are provided with semicircular receiving grooves 102, and the receiving grooves 102 of the adjacent support plates 101 together form a through hole for passing the tension bolts 2, and the upper pressure cover 3 and the lower pressure cover 4 are C-shaped frames with openings facing each other, and the upper pressure cover 3 and the lower pressure cover 4 are respectively pressed against and extend to the outer sides of the upper and lower parts of the support plates 101;

[0029] A top hole 301 for accommodating the tension bolt 2 is vertically penetrated in the middle of the upper gland 3, and a bottom hole 401 is penetrated in the middle of the lower gland 4 corresponding to the top hole 301. Both the top hole 301 and the bottom hole 401 are used to penetrate the tension bolt 2. A restraining groove 302 communicating with the top hole 301 is provided on the top side of the upper gland 3;

[0030] A vertically extending guide hole 202 is longitudinally penetrated in the middle of the stud end, a constraint plate 205 is longitudinally penetrated in the guide hole 202, and a countersunk hole 203 is provided at the top of the stud end, a slide bar 204 extending into the guide hole 202 is provided in the middle of the countersunk hole 203, the slide bar 204 vertically penetrates the constraint plate 205, and the slide bar 204 and the constraint plate 205 are vertically slidably matched, and a spring 206 is sleeved on the outside of the slide bar 204 to keep the constraint plate 205 downwardly pressed against the constraint groove 302;

[0031] In addition, the width of the constraint plate 205 is smaller than the width of the constraint groove 302, ensuring that the constraint plate 205 can move in the constraint groove 302, so as to facilitate the removal of the slide rod 204 and thus separate the constraint plate 205. A disassembly head with a threaded mating countersunk hole 203 is fixed to the top of the slide rod 204, and the top of the disassembly head is flush with the top of the stud end, ensuring that the nut 201 can be pressed downward to the top side of the upper pressure cover 3.

[0032] With the above structure, when in use, the end faces of the support plates 101 of the two groups of half tooth bodies 1 are abutted, and the tension bolts 2 are ensured to be vertically inserted between the two groups of half tooth bodies 1. At the same time, the lower pressure cover 4 is placed on the bottom side of the support plates 101 of the two groups of half tooth bodies 1, and then the upper pressure cover 3 is sleeved on the outer side of the top stud end of the tension bolt 2, and the constraint plate 205 is inserted into the guide hole 202, and then the slide rod 204 with the spring 206 is fixed to the countersunk hole 203, so as to use the spring 206 to press the constraint plate 205 downward. The restraining plate 205 is used to push the upper pressure cover 3 downward to keep the upper pressure cover 3 and the lower pressure cover 4 pre-positioning the two groups of half-tooth bodies 1, and then the nut 201 is rotated to press the upper pressure cover 3 downward to lock the position of the upper pressure cover 3 to ensure that the limiting pressure block 5 is embedded in the pressure groove 103 of the support plate 101, so that the two groups of half-tooth bodies 1 are kept in abutment by the limiting pressure blocks 5 on both sides, and the upper and lower pressure covers 4 are used to keep the end surfaces of the two groups of half-tooth bodies 1 flush up and down, completing the pulling, positioning, and splicing installation of the half-tooth bodies 1;

[0033] An upper pressure cap 3 and a lower pressure cap 4 are arranged outside the tension screw to respectively buckle the upper and lower sides of the ends of the half tooth body 1, so as to ensure that the abutment of the two groups of half tooth bodies 1 can be kept flush, avoid the upper and lower misalignment of the gear splicing, and a wedge-shaped limiting pressure block 5 is arranged to be embedded in the pressure groove 103 of the half tooth body 1, so as to improve the structural connection stability of the two groups of half tooth bodies 1;

[0034] A constraint plate 205 is provided as a pre-positioning structure of the upper pressure cover 3. After the two groups of half-tooth bodies 1 are assembled and pressed together, the constraint plate 205 is pushed by the spring 206 to keep the upper pressure cover 3 in a downward pressed state, so as to pre-position the two groups of half-tooth bodies 1, so that the two groups of half-tooth bodies 1 can maintain stable contact during the subsequent tightening of the nut 201, and the operation is more convenient.

[0035] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A large gear assembly pulling positioning device, comprising two groups of half gear bodies (1), wherein the two groups of half gear bodies (1) are assembled to form a circular ring-shaped gear body, characterized in that: Two tension bolts (2) are vertically passed through the joints of the two groups of half-tooth bodies (1), and an upper pressure cover (3) and a lower pressure cover (4) are arranged on the outer sides of the tension bolts (2) for pressing the two groups of half-tooth bodies (1); The threaded end of the top stud of the tension bolt (2) is equipped with a nut (201) for holding the upper pressure cover (3) to press the half-tooth body (1) downward; a vertically extending support plate (101) is fixed to the end of the half-tooth body (1); the upper and lower parts of the support plate (101) away from the tension bolt (2) are provided with inclined extending pressure grooves (103); and the upper and lower parts of the upper pressure cover (3) and the lower pressure cover (4) are fixed with limiting pressure blocks (5) adapted to the pressure grooves (103) on the opposite sides.

2. The large gear assembly and pulling positioning device according to claim 1 is characterized in that: Semicircular receiving grooves (102) are arranged on opposite sides of the support plates (101) at the ends of the two groups of half teeth (1), and the receiving grooves (102) of adjacent support plates (101) together form through holes for passing the tension bolts (2).

3. The large gear assembly and pulling positioning device according to claim 2 is characterized in that: The upper pressure cover (3) and the lower pressure cover (4) are C-shaped frames with openings facing each other. The upper pressure cover (3) and the lower pressure cover (4) are respectively pressed against and extend to the outer sides of the upper and lower parts of the support plate (101).

4. The large gear assembly and pulling positioning device according to claim 3 is characterized in that: The upper pressure cover (3) has a top hole (301) vertically extending through the middle thereof for accommodating the tension bolt (2) to pass through, and the lower pressure cover (4) has a bottom hole (401) extending through the middle thereof corresponding to the top hole (301), and a restraining groove (302) communicating with the top hole (301) is provided on the top side of the upper pressure cover (3).

5. The large gear assembly and pulling positioning device according to claim 4 is characterized in that: A vertically extending guide hole (202) is longitudinally penetrated through the middle of the stud end, a restraining plate (205) is longitudinally penetrated in the guide hole (202), and a countersunk hole (203) is arranged at the top end of the stud end, and a sliding rod (204) extending into the guide hole (202) is arranged in the middle of the countersunk hole (203).

6. The large gear assembly and pulling positioning device according to claim 5 is characterized in that: The slide bar (204) vertically penetrates the constraint plate (205), and the slide bar (204) and the constraint plate (205) are vertically slidably matched, and the outside of the slide bar (204) is provided with a spring (206) for keeping the constraint plate (205) pressed downward against the constraint groove (302).

7. The large gear assembly and pulling positioning device according to claim 6 is characterized in that: The width of the restraining plate (205) is smaller than the width of the restraining groove (302).

8. The large gear assembly and pulling positioning device according to claim 7 is characterized in that: A disassembly head whose thread matches the countersunk hole (203) is fixed to the top of the slide rod (204), and the top of the disassembly head is flush with the top of the stud end.

Images