Coupling structure of sleeve type main shaft and main shaft seat

Abstract

The utility model provides a connecting structure of a sleeve type main shaft and a main shaft seat. The connecting structure of the sleeve type main shaft and the main shaft seat comprises a sleeve type main shaft body; the main shaft seat body is arranged outside the sleeve type main shaft body, a connecting hole is formed in the main shaft seat body, and the connecting hole is connected with the sleeve type main shaft body in a matched mode; the outer expansion sleeve is assembled in the connecting hole and is in contact with the inner wall of the connecting hole; the inner expansion sleeve is arranged in the connecting hole, and the two sides of the inner expansion sleeve make contact with one side of the outer expansion sleeve and the outer portion of the sleeve type main shaft body respectively. According to the connecting structure of the sleeve type main shaft and the main shaft seat, the sleeve type main shaft body and the main shaft seat body can be stably connected and fixed, meanwhile, the abrasion condition of the inner expansion sleeve can be monitored, and stable operation of the sleeve type main shaft body is ensured; and the connection stability between the sleeve type main shaft body and the main shaft seat body is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to sleeve type main shaft technical field especially relates to a sleeve type main shaft and main shaft seat's coupling structure. BACKGROUND

[0002] Sleeve type main shaft is important mechanical transmission assembly on grinding machine. When using sleeve type main shaft, need to be matched to use corresponding main shaft seat. When installing and coupling sleeve type main shaft and main shaft seat, need to use corresponding coupling structure.

[0003] In order to improve the stability of sleeve type main shaft and main shaft seat between connection, coupling structure will set up expansion sleeve assembly when coupling and fixing sleeve type main shaft and main shaft seat. However, after long time use, expansion sleeve assembly can appear wear and tear. When the wear and tear of expansion sleeve reaches certain degree, will reduce the fastening degree of sleeve type main shaft, thus leading to the connection of sleeve type main shaft and main shaft seat loose or failure in use process, leading to unstable operation of main shaft or vibration. Common coupling structure cannot monitor the wear and tear of expansion sleeve, reduces the stability of sleeve type main shaft and main shaft body between connection. Through the retrieval, the patent document with the authorization announcement number CN218556685U discloses a sleeve type main shaft and main shaft seat's coupling structure, and the same problem exists in actual use process.

[0004] Therefore, it is necessary to provide a sleeve type main shaft and main shaft seat's coupling structure to solve the above technical problems. INVENTION CONTENTS

[0005] In order to solve the technical problem that the coupling structure of the sleeve type main shaft and the main shaft seat in the background art cannot monitor the wear and tear of the expansion sleeve, the utility model provides a coupling structure of a sleeve type main shaft and a main shaft seat.

[0006] The coupling structure of the sleeve type main shaft and the main shaft seat provided by the utility model comprises a sleeve type main shaft body, a main shaft seat body provided outside the sleeve type main shaft body, a connecting hole formed in the main shaft seat body, the connecting hole being matched with the sleeve type main shaft body, an outer expansion sleeve assembled in the connecting hole, the outer expansion sleeve being in contact with the inner wall of the connecting hole, an inner expansion sleeve provided in the connecting hole, the two sides of the inner expansion sleeve being in contact with one side of the outer expansion sleeve and the outside of the sleeve type main shaft body, a pressing mechanism assembled in the main shaft seat body and the connecting hole, the pressing mechanism being used for pressing the outer expansion sleeve and the inner expansion sleeve, and a monitoring mechanism provided on the inner expansion sleeve, the monitoring mechanism being used for monitoring the wear and tear of the inner expansion sleeve.

[0007] Preferably, the pressing mechanism comprises a pressing cover arranged in the connecting hole, the pressing cover being used for pressing and fixing the outer expansion sleeve and the inner expansion sleeve; and a plurality of fixing bolts arranged on the pressing cover and the main shaft base body, the pressing cover being fixedly connected with the main shaft base body through the fixing bolts.

[0008] Preferably, the outer ring of the pressing cover is in contact with the inner wall of the connecting hole, the inner ring of the pressing cover is in contact with the outer wall of the sleeve type main shaft body, and the bottom of the pressing cover is in abutment with the top of the outer expansion sleeve and the inner expansion sleeve.

[0009] Preferably, the monitoring mechanism comprises a mounting cavity formed in the inner expansion sleeve, a connecting rod being slidably arranged in the mounting cavity, a stopper being fixedly arranged on the connecting rod, a spring being arranged on the connecting rod, an abutting ball being fixedly arranged on the connecting rod and located on one side of the sleeve type main shaft body, a placing cavity being formed in the inner expansion sleeve, a reminder being fixedly arranged in the placing cavity, an actuating button being arranged on the reminder and matched with the reminder, and a trigger plate being fixedly arranged on the connecting rod and located in the placing cavity and on one side of the actuating button.

[0010] Preferably, a limiting mechanism is arranged in the placing cavity, the limiting mechanism being used for limiting the movement of the trigger plate, and the limiting mechanism comprises a sliding rod fixedly arranged in the placing cavity and slidably connected with the trigger plate, and a limiting block fixedly arranged on the sliding rod and used for limiting the movement of the trigger plate.

[0011] Preferably, the mounting cavity and the stopper are both rectangular, the stopper is slidably connected with the inner wall of the mounting cavity, and an avoiding opening is formed in the inner expansion sleeve and used for avoiding the abutting ball.

[0012] Preferably, a plurality of mounting mechanisms are arranged on the main shaft base body, the mounting mechanisms being used for mounting the main shaft base body, and each mounting mechanism comprises a mounting block fixedly arranged on the main shaft base body, and a mounting bolt arranged on the mounting block and used for mounting the mounting block.

[0013] Compared with the related art, the coupling structure of the sleeve type main shaft and the main shaft base has the following beneficial effects:

[0014] The utility model provides a coupling structure of sleeve type main shaft and main shaft base:

[0015] 1、The connecting hole, the outer expansion sleeve, the inner expansion sleeve, the pressing mechanism and the monitoring mechanism form the connecting structure between the sleeve type main shaft body and the main shaft seat body, which can stably connect and fix the sleeve type main shaft body and the main shaft seat body, and can monitor the wear of the inner expansion sleeve, so that the staff can timely perform corresponding maintenance work, ensure the stable operation of the sleeve type main shaft body, and improve the stability of the connection between the sleeve type main shaft body and the main shaft seat body.

[0016] 2、The pressing mechanism can apply axial pressing force to the inner expansion sleeve and the outer expansion sleeve, so that radial expansion occurs, so as to tightly wrap the outer surface of the sleeve type main shaft body. The expansion ensures the close contact and firm connection between the sleeve type main shaft body and the main shaft seat body, so as to connect and fix the sleeve type main shaft body and the main shaft seat body. The monitoring mechanism can monitor the wear of the inner expansion sleeve, so that the staff can timely perform corresponding maintenance work, ensure the stable operation of the sleeve type main shaft body, and improve the stability of the connection between the sleeve type main shaft body and the main shaft seat body.

[0017] 3、The limiting mechanism can limit the movement of the trigger plate, so as to avoid excessive extrusion of the trigger plate on the start button, thereby protecting the start button and the reminder. The installation mechanism facilitates the installation of the main shaft seat body. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A preferred embodiment of the sleeve type main shaft and the main shaft seat connecting structure provided by the utility model is a front view of a sectional structure schematic diagram;

[0019] Figure 2 A front view of a sectional structure schematic diagram of the utility model is shown in the figure;

[0020] Figure 3 A Figure 2 Enlarged structure schematic diagram of part A shown in the figure;

[0021] Figure 4 A Figure 2 Enlarged structure schematic diagram of part B shown in the figure.

[0022] Reference numerals in the figure: 1, sleeve type main shaft body; 2, main shaft seat body; 3, connecting hole; 4, outer expansion sleeve; 5, inner expansion sleeve; 6, gland; 7, fixing bolt; 8, installation cavity; 9, connecting rod; 10, stop block; 11, spring; 12, abutting ball; 13, placement cavity; 14, reminder; 15, start button; 16, trigger plate; 17, sliding rod; 18, limiting block; 19, installation block; 20, installation bolt. DETAILED DESCRIPTION

[0023] The utility model is further described below in combination with the drawings and embodiments.

[0024] Please refer to Figures 1-4 , wherein Figure 1 It is the main view sectional structure schematic diagram of a preferred embodiment of the coupling structure of sleeve type main shaft and main shaft seat provided by the utility model; Figure 2 It is the main view sectional structure schematic diagram of the utility model; Figure 3 It is Figure 2 It is the enlarged structure schematic diagram of A part shown in the figure. Figure 4 It is Figure 2 It is the enlarged structure schematic diagram of B part shown in the figure.

[0025] The coupling structure of sleeve type main shaft and main shaft seat includes: sleeve type main shaft body 1;Main shaft seat body 2 is arranged at the outside of sleeve type main shaft body 1, and the main shaft seat body 2 is provided with connecting hole 3, and the connecting hole 3 is connected with sleeve type main shaft body 1;Expanding sleeve 4 is assembled in connecting hole 3, and the inner wall of connecting hole 3 and expanding sleeve 4 are in contact;Inner expanding sleeve 5 is arranged in connecting hole 3, and the two sides of inner expanding sleeve 5 are in contact with one side of expanding sleeve 4 and the outside of sleeve type main shaft body 1 respectively;Compression mechanism is assembled in main shaft seat body 2 and connecting hole 3, and the compression mechanism is used for compressing expanding sleeve 4 and inner expanding sleeve 5;Monitoring mechanism is arranged on inner expanding sleeve 5, and the monitoring mechanism is used for monitoring the wear condition of inner expanding sleeve 5, and the coupling structure between sleeve type main shaft body 1 and main shaft seat body 2 is formed through connecting hole 3, expanding sleeve 4, inner expanding sleeve 5, compression mechanism and monitoring mechanism, which can stably connect and fix sleeve type main shaft body 1 and main shaft seat body 2, and the wear condition of inner expanding sleeve 5 can be monitored, so that the staff can timely carry out corresponding maintenance work, ensure the stable operation of sleeve type main shaft body 1, and improve the stability of the connection between sleeve type main shaft body 1 and main shaft seat body 2.

[0026] The compression mechanism includes: gland 6 is arranged in connecting hole 3, and the gland 6 is used for compressing and fixing expanding sleeve 4 and inner expanding sleeve 5;A plurality of fixed bolts 7 are arranged on the gland 6 and the main shaft seat body 2, and the gland 6 is fixedly connected with the main shaft seat body 2 through a plurality of fixed bolts 7, and the axial compression force can be applied to inner expanding sleeve 5 and expanding sleeve 4 through compression mechanism, so that radial expansion occurs, so as to tightly wrap the outer surface of sleeve type main shaft body 1, and the expansion ensures the close contact and firm connection between sleeve type main shaft body 1 and main shaft seat body 2, so as to connect and fix sleeve type main shaft body 1 and main shaft seat body 2.

[0027] The outer ring of the gland 6 is in contact with the inner wall of the connecting hole 3, the inner ring of the gland 6 is in contact with the outer wall of the sleeve spindle body 1, and the bottom of the gland 6 is in contact with the top of the outer expansion sleeve 4 and the inner expansion sleeve 5.

[0028] The monitoring mechanism comprises: a mounting cavity 8 formed in the inner expansion sleeve 5, a connecting rod 9 slidingly mounted in the mounting cavity 8, a stop block 10 fixedly sleeved on the connecting rod 9, a spring 11 sleeved on the connecting rod 9, a contact ball 12 fixedly installed on the connecting rod 9, the contact ball 12 being located on one side of the sleeve spindle body 1, a placement cavity 13 formed in the inner expansion sleeve 5, a reminder 14 fixedly installed in the placement cavity 13, a start button 15 provided on the reminder 14, the start button 15 and the reminder 14 being matched, and a trigger plate 16 fixedly installed on the connecting rod 9, the trigger plate 16 being located in the placement cavity 13 and on one side of the start button 15. The wear of the inner expansion sleeve 5 can be monitored through the monitoring mechanism, so that the staff can timely perform corresponding maintenance work, ensuring the stable operation of the sleeve spindle body 1 and improving the stability of the connection between the sleeve spindle body 1 and the spindle seat body 2.

[0029] The placement cavity 13 is provided with a limiting mechanism for limiting the movement of the trigger plate 16. The limiting mechanism comprises: a sliding rod 17 fixedly installed in the placement cavity 13, the sliding rod 17 being slidingly connected with the trigger plate 16, and a limiting block 18 fixedly sleeved on the sliding rod 17 and limiting the movement of the trigger plate 16. The movement of the trigger plate 16 can be limited through the limiting mechanism, so that the trigger plate 16 is prevented from excessively pressing the start button 15, thereby protecting the start button 15 and the reminder 14.

[0030] The mounting cavity 8 and the stop block 10 are both rectangularly arranged, the stop block 10 is slidingly connected with the inner wall of the mounting cavity 8, and an avoiding opening is formed in the inner expansion sleeve 5 and used for avoiding the contact ball 12.

[0031] The spindle seat body 2 is provided with a plurality of mounting mechanisms for mounting the spindle seat body 2. The mounting mechanisms comprise: a mounting block 19 fixedly installed on the spindle seat body 2, and a mounting bolt 20 provided on the mounting block 19 and used for mounting the mounting block 19. The spindle seat body 2 can be conveniently mounted through the mounting mechanisms.

[0032] It should be pointed out that the circuit, electronic components and modules involved in the utility model are all prior art, and can be realized by those skilled in the art without further description, and the content protected by the utility model does not involve improvement of software and methods.

[0033] The working principle of the coupling structure of the sleeve type main shaft and the main shaft seat provided by the utility model is as follows:

[0034] In use, the outer expansion sleeve 4 and the inner expansion sleeve 5 are installed in the connecting hole 3, then the sleeve type main shaft body 1 is placed into the connecting hole 3, the gland 6 is placed into the connecting hole 3, the gland 6 and the main shaft seat body 2 are connected and fixed through the fixing bolt 7, the inner expansion sleeve 5 and the outer expansion sleeve 4 can be tightly fixed through the gland 6, the stability and reliability of the inner expansion sleeve 5 and the outer expansion sleeve 4 on the main shaft seat body 2 are ensured, the inner expansion sleeve 5 and the outer expansion sleeve 4 will expand radially when subjected to the axial compression force of the gland 6, so as to tightly wrap the outer surface of the sleeve type main shaft body 1, the tight contact and firm connection between the sleeve type main shaft body 1 and the main shaft seat body 2 are ensured, so as to connect and fix the sleeve type main shaft body 1 and the main shaft seat body 2;

[0035] In actual use, the main shaft seat body 2 is installed on the corresponding position of the grinding machine through the mounting block 19 and the mounting bolt 20, the sleeve type main shaft body 1 and the corresponding power source, for example, the motor, are connected, when the sleeve type main shaft body 1 and the main shaft seat body 2 are used in cooperation, when the inner expansion sleeve 5 is worn, when the wear reaches a certain degree, the sleeve type main shaft body 1 contacts the abutting ball 12, at this time, the connecting rod 9 is subjected to the extrusion force and drives the stop block 10 to compress the spring 11, when the connecting rod 9 moves a certain distance, the trigger plate 16 and the start button 15 are contacted, at this time, the alarm 14 emits an alarm sound, so as to remind the staff that the inner expansion sleeve 5 is worn to a certain degree, so that the staff can timely perform the corresponding maintenance work, and the stable operation of the sleeve type main shaft body 1 is ensured, and the stability of the connection between the sleeve type main shaft body 1 and the main shaft seat body 2 is improved.

[0036] Compared with the related art, the coupling structure of the sleeve type main shaft and the main shaft seat has the following beneficial effects:

[0037] The utility model provides a sleeve formula main shaft and main shaft seat's connecting structure, through connecting hole 3, outer expansion sleeve 4, inner expansion sleeve 5, compression mechanism and monitoring mechanism form the connecting structure between sleeve formula main shaft body 1 and main shaft seat body 2, can stably link the fixing of sleeve formula main shaft body 1 and main shaft seat body 2, can monitor the wear condition of inner expansion sleeve 5 simultaneously, so the staff can promptly carry out the corresponding overhaul work, ensure the stable operation of sleeve formula main shaft body 1, improve the stability of the connection between sleeve formula main shaft body 1 and main shaft seat body 2,

[0038] Through the compression mechanism can exert axial compression force to inner expansion sleeve 5 and outer expansion sleeve 4, make radial expansion, thereby tightly wrap the outer surface of sleeve formula main shaft body 1, and this expansion effect ensures the close contact and firm connection between sleeve formula main shaft body 1 and main shaft seat body 2, thereby link the fixing of sleeve formula main shaft body 1 and main shaft seat body 2, through monitoring mechanism can monitor the wear condition of inner expansion sleeve 5, so the staff can promptly carry out the corresponding overhaul work, ensure the stable operation of sleeve formula main shaft body 1, improve the stability of the connection between sleeve formula main shaft body 1 and main shaft seat body 2,

[0039] Through the limiting mechanism can limit the movement of trigger plate 16, thereby avoid trigger plate 16 excessively extruding start button 15, thereby play the protection effect to start button 15 and reminder 14, through the installation mechanism, the main shaft seat body 2 is installed conveniently.

[0040] It should be noted that the device structure and the drawings of the utility model mainly describe the principle of the utility model, and the setting of the power mechanism, the power supply system and the control system of the device is not completely described in the technical principle of the design, but under the premise that the person skilled in the art understands the principle of the above-mentioned utility model, the specific power mechanism, power supply system and control system can be clearly known.

[0041] The above-mentioned is only the embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process transformation using the contents of the utility model specification and drawings, or direct or indirect application in other related technical fields, are all included in the patent protection range of the utility model.

Claims

1. A connection structure between a sleeve-type spindle and a spindle seat, characterized in that, The utility model relates to a sleeve type main shaft body, a main shaft seat body is arranged outside the sleeve type main shaft body, a connecting hole is opened in the main shaft seat body, the connecting hole and the sleeve type main shaft body are connected, an outer expansion sleeve is assembled in the connecting hole, the outer expansion sleeve and the inner wall of connecting hole contact, an inner expansion sleeve is arranged in the connecting hole, the both sides of inner expansion sleeve and the one side of outer expansion sleeve and the outside of sleeve type main shaft body contact respectively, a compression mechanism is assembled in the main shaft seat body and the connecting hole, and the compression mechanism is used for the compression of outer expansion sleeve and inner expansion sleeve, a monitoring mechanism is arranged on the inner expansion sleeve, and the monitoring mechanism is used for monitoring the wear condition of inner expansion sleeve. The compression mechanism includes a gland is arranged in the connecting hole, and the gland is used for the compression fixation of outer expansion sleeve and inner expansion sleeve, a plurality of fixed bolts are arranged on the gland and the main shaft seat body, and the gland is fixedly connected with the main shaft seat body through a plurality of fixed bolts. The outer circle of gland and the inner wall of connecting hole contact, the inner circle of gland and the outer wall of sleeve type main shaft body contact, and the bottom of gland and the top of outer expansion sleeve and inner expansion sleeve abut. The monitoring mechanism includes an installation cavity is opened in the inner expansion sleeve, a connecting rod is slidably installed in the installation cavity, a stopper is fixedly sleeved on the connecting rod, a spring is sleeved on the connecting rod, an abutting ball is fixedly installed on the connecting rod and located at one side of sleeve type main shaft body, a placing cavity is opened in the inner expansion sleeve, a reminder is fixedly installed in the placing cavity, a start button is arranged on the reminder and matched with the reminder, a trigger plate is fixedly installed on the connecting rod and located in the placing cavity and at one side of the start button. The placing cavity is provided with a limiting mechanism for limiting the movement of trigger plate, and the limiting mechanism includes a sliding rod is fixedly installed in the placing cavity and slidably connected with the trigger plate, and a limiting block is fixedly sleeved on the sliding rod and used for limiting the movement of trigger plate. The installation cavity and the stopper are both rectangularly arranged, the stopper and the inner wall of installation cavity are slidably connected, and an avoiding opening is opened in the inner expansion sleeve and used for avoiding the abutting ball. The main shaft seat body is provided with a plurality of mounting mechanisms for mounting the main shaft seat body, and the mounting mechanism includes a mounting block is fixedly installed on the main shaft seat body, and a mounting bolt is arranged on the mounting block and used for mounting the mounting block.

2. The collet spindle to spindle nose connection of claim 1 wherein, ​ ​ ​ 3. The collet spindle to spindle nose connection of claim 2 wherein, ​ 4. The collet spindle to spindle nose connection of claim 1 wherein, ​ ​ ​ ​ ​ ​ 5. The collet spindle to spindle nose connection of claim 4 wherein, ​ ​ ​ 6. The collet spindle to spindle nose connection of claim 4 wherein, ​ 7. The collet spindle to spindle nose connection of claim 1 wherein, ​ ​ ​

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