A rotating device for changing the direction of conveying of a calcium carbide pot

Abstract

The application relates to a rotating device for changing the conveying direction of a calcium carbide pot, belonging to the technical field of material conveying, and solves the problems of poor flexibility and large noise in the prior art. The application comprises a moving mechanism, a rotating mechanism and a conveying mechanism; the rotating mechanism is arranged above the moving mechanism and is driven to linearly displace by the moving mechanism; the conveying mechanism is arranged above the rotating mechanism and is driven to rotate by the rotating mechanism. The rotating mechanism drives the upper rotating upper seat to rotate through symmetrical linear displacement. The application realizes the position displacement and angle adjustment of the conveying mechanism.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of material conveying, in particular to a rotating device for changing the conveying direction of calcium carbide pots. BACKGROUND

[0002] The existing material conveying system has a fixed conveying track position, and the material can only be transported in a single line, and cannot be transported in multiple lines, so the conveying system is not flexible and has poor maneuverability.

[0003] The rotating device is driven by rollers running on a circular guide rail, and the rollers are turned by friction during driving to turn the upper turntable and the carrying mechanism.

[0004] For friction driving, the pressing force of the friction wheel and the track is required to be high, and if the pressing force is too large, the noise will be too large, affecting the use experience of the operator, and when the load weight is too large, the friction between the friction wheel and the guide rail will increase, which will easily cause the friction wheel to not rotate.

[0005] In addition, after long-term use of the components, the pressing force between the friction wheel and the track will be too small, the friction wheel will idle, and the turntable will not be able to be driven to rotate.

[0006] During the operation of the assembly line, the friction wheel will stop and jam, and the friction wheel will idle, which will cause the system process to be unable to continuously operate, and the line needs to be stopped for maintenance, which not only wastes manpower but also affects the production efficiency and easily delays the construction period. SUMMARY

[0007] In view of the above analysis, the present application aims to provide a rotating device for changing the conveying direction of calcium carbide pots to solve the problems of the existing conveying system being not flexible and having poor maneuverability and the existing rotating mechanism having large noise during friction operation.

[0008] The purpose of the present application is mainly realized through the following technical solutions:

[0009] A rotating mechanism, comprising: a rotating upper seat, a connecting seat, an extension rod and a linear drive assembly; the connecting seat is fixedly connected with the rotating upper seat or is an integral structure; one end of the extension rod is fixedly connected with the connecting seat, and the other end is rotatably connected with the linear drive assembly; the linear drive assembly is used for outputting linear displacement; the extension rod and the linear drive assembly are arranged in multiple groups along the circumferential symmetry center of the rotating upper seat; when multiple linear drive assemblies synchronously output linear displacement, the rotating upper seat rotates around the axis of the symmetry center of the extension rod.

[0010] Furthermore, the linear drive assembly includes: a second drive wheel, a second drive track, and a second drive motor; the second drive wheel is rotatably mounted on the end of the telescopic rod; the second drive motor is used to drive the second drive wheel to roll along the second drive track.

[0011] Furthermore, the second drive wheel is rotatably mounted on the drive wheel support, and the drive wheel support is rotatably connected to the telescopic rod.

[0012] Furthermore, a hinge seat is provided at one end of the telescopic rod that is connected to the linear drive assembly; a rotating shaft is provided on the upper part of the drive wheel support seat; the rotating shaft and the hinge seat are connected by a bearing.

[0013] Furthermore, the rotating platform also includes a support base, and the second drive rail is disposed on the upper surface of the support base and fixedly connected; multiple second drive rails are symmetrically arranged on the support base.

[0014] Furthermore, the rotating platform also includes a rotating spindle, which is disposed between the rotating upper seat and the supporting base, and the axis of the rotating spindle coincides with the rotation axis of the rotating upper seat; the bottom of the rotating spindle is fixedly connected to the supporting base, and the upper part is rotatably connected to the rotating upper seat.

[0015] A rotating device for changing the conveying direction of a calcium carbide pot includes: a transferring mechanism, a rotating mechanism, and a conveying mechanism;

[0016] The rotating mechanism is positioned above the transferring mechanism and is driven by the transferring mechanism to perform linear displacement; the conveying mechanism is positioned above the rotating mechanism and is driven by the rotating mechanism to rotate.

[0017] Furthermore, the transfer mechanism includes: a first drive track, a transfer frame, a first drive wheel, and a first drive motor; the first drive wheel is rotatably mounted on the transfer frame; the first drive wheel is driven to rotate by the first drive motor; when the first drive wheel rotates, it rolls forward along the first drive track and drives the transfer frame to slide linearly relative to the first drive track.

[0018] Furthermore, symmetrical travel tracks are arranged on both sides of the first drive track; the travel tracks are parallel to the first drive track; travel wheels are rotatably mounted on the transfer frame, and the travel wheels roll and displace on the travel tracks.

[0019] Furthermore, the conveying mechanism is a conveying roller bed.

[0020] The technical solution of this invention can achieve at least one of the following effects:

[0021] 1. The rotation of the rotating mechanism of the present invention is achieved by the relative rotation between the drive wheel and the telescopic rod. The drive wheel and the track have linear rolling displacement, which does not require friction operation, effectively reducing noise. Furthermore, the symmetrical arrangement of multiple second drive wheels is conducive to the smooth movement of the rotating upper seat.

[0022] 2. The rotating device for changing the conveying direction of the calcium carbide pot of the present invention provides linear displacement through the transfer mechanism and rotational motion through the rotating mechanism, thereby realizing the angular deflection of the position transfer of the conveying mechanism. This enables the conveying mechanism to dock with conveying lines at different positions and angles, realizing multi-line transmission, improving the flexibility and mobility of the material conveying process, and has broad application prospects.

[0023] In this invention, the above-described technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of this invention will be set forth in the following description, and some advantages may become apparent from the description or be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained from what is particularly pointed out in the description and drawings. Attached Figure Description

[0024] The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Throughout the drawings, the same reference numerals denote the same parts.

[0025] Figure 1 The present invention relates to a transfer mechanism for a rotating device that changes the conveying direction of a calcium carbide pot.

[0026] Figure 2 The rotating mechanism of the rotating device for changing the conveying direction of the calcium carbide pot according to the present invention;

[0027] Figure 3 This is a front view of the rotating mechanism of the present invention;

[0028] Figure 4 This is an elevation view of the rotating mechanism of the present invention;

[0029] Figure 5 This is a partially enlarged view of the rotating mechanism of the present invention;

[0030] Figure 6 This is a schematic diagram illustrating the motion principle of the rotating mechanism of the present invention;

[0031] Figure 7 For conveying mechanisms.

[0032] Figure label:

[0033] 1-Transfer mechanism; 2-Rotating mechanism; 3-Conveying mechanism;

[0034] 101-Travel track; 102-First drive track; 103-Transfer frame; 104-Crossbeam; 105-Travel wheel; 106-First drive wheel; 107-First drive motor;

[0035] 201-Rotating upper seat; 202-Support base; 203-Second drive wheel; 204-Second drive rail; 205-Second drive motor; 206-Connecting seat; 207-Telescopic rod; 208-Hinge seat; 209-Rotating spindle; 210-Drive wheel mounting seat. Detailed Implementation

[0036] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0037] Example 1

[0038] A specific embodiment of the present invention discloses a rotating mechanism 2, which includes: a track assembly, a telescopic rod 207, a guide wheel assembly, a rotating upper seat 201, and a driving device.

[0039] The track assembly includes four symmetrically distributed second drive tracks 204, each of which is a linear guide rail. Figure 2 As shown. The guide wheel assembly includes a second drive wheel 203 and a drive wheel mounting base 210. The drive device is a first drive motor.

[0040] In one specific embodiment of the present invention, the rotating mechanism includes: a rotating upper seat 201, a connecting seat 206, a telescopic rod 207, and a linear drive assembly; the connecting seat 206 is fixedly connected to the rotating upper seat 201 or is an integral structure; one end of the telescopic rod 207 is fixedly connected to the connecting seat 206, and the other end is rotatably connected to the linear drive assembly; the linear drive assembly is used to output linear displacement; multiple sets of the telescopic rod 207 and the linear drive assembly are symmetrically arranged around the rotation center of the rotating upper seat 201; when multiple sets of linear drive assemblies synchronously output linear displacement, the rotating upper seat 201 rotates around the axis where the center of symmetry of the telescopic rod 207 is located.

[0041] In one specific embodiment of the present invention, the connecting seat 206 is plate-shaped, and multiple connecting seats 206 are circumferentially symmetrically distributed with respect to the rotation axis of the rotating upper seat 201, such as... Figures 2-6 As shown.

[0042] Specifically, the connecting seat 206 is a plate-shaped structure. The connecting seat 206 is located below the rotating upper seat 201 and perpendicular to the rotating upper seat 201. Furthermore, the telescopic rod 207 is perpendicular to the connecting seat 206 and is fixed to the connecting seat 206 by welding.

[0043] like Figures 2-6 As shown, since multiple linear displacement components are arranged symmetrically with respect to the center of the rotating upper seat 201, when the linear displacement components output linear displacement synchronously, the rotating upper seat 201 rotates around its own axis.

[0044] Furthermore, the linear drive assembly includes: a second drive wheel 203, a second drive track 204, and a second drive motor 205; the second drive wheel 203 is rotatably mounted on the end of the telescopic rod 207; the second drive motor 205 is used to drive the second drive wheel 203 to roll along the second drive track 204.

[0045] Specifically, such as Figure 2 As shown, the second drive track 204 is a linear guide rail.

[0046] Preferably, such as Figure 2 As shown, there are four second drive tracks 204, and the four second drive tracks 204 are evenly distributed circumferentially.

[0047] Specifically, the length of the telescopic rod 207 is variable. The telescopic rod 207 includes two interlocking sliding rods and sliding tubes. During the relative sliding of the sliding rods and sliding tubes, the length of the telescopic rod 207 can be extended or shortened.

[0048] In one specific embodiment of the present invention, in order to avoid the second drive wheel 203 from deflecting, the contact surface between the second drive wheel 203 and the second drive track 204 is an arc surface.

[0049] Specifically, the upper surface of the second drive track 204 is a concave arc surface, and the outer surface of the second drive wheel 203 is a convex arc surface, so that the second drive wheel 203 can always slide along the extension direction of the second drive track 204.

[0050] Furthermore, the second drive wheel 203 is rotatably mounted on the drive wheel mounting seat 210, and the drive wheel mounting seat 210 is rotatably connected to the telescopic rod 207.

[0051] Furthermore, a hinge seat 208 is provided at one end of the telescopic rod 207 that is connected to the linear drive assembly; a rotating shaft is provided on the upper part of the drive wheel mounting seat 210; the rotating shaft and the hinge seat 208 are connected by a bearing.

[0052] Specifically, the hinge seat 208 and the telescopic rod 207 are fixed by welding or are an integral structure.

[0053] When the second drive wheel 203 rolls linearly along the second drive track 204, the drive wheel mounting seat 210 rotates relative to the hinge seat 208, that is, the telescopic rod 207 deflects at an angle relative to the second drive wheel 203, thereby driving the rotating upper seat 201 to rotate.

[0054] Furthermore, by adjusting the length of the second drive track 204 or adjusting the distance between the second drive track 204 and the rotation center of the rotating upper seat 201, the rotation amplitude of the rotating upper seat 201 can be adjusted, and the rotation angle of the rotating upper seat 201 can be increased or decreased.

[0055] Furthermore, the rotating platform also includes a support base 202, and the second drive rail 204 is disposed on the upper surface of the support base 202 and fixedly connected; multiple second drive rails 204 are symmetrically arranged on the support base 202.

[0056] Furthermore, the track assembly is made of steel and is welded to the support base 202 after leveling.

[0057] Furthermore, the guide wheel assembly uses forged steel wheels to improve wear resistance, and the four second drive wheels 203 are symmetrically arranged, such as... Figures 2-6 As shown.

[0058] In one specific embodiment of the present invention, the rotating upper seat 201 can be a circular or rectangular steel plate, or a steel frame structure welded from structural steel. Preferably, the rotating upper seat 201 is a circular steel plate.

[0059] It is worth noting that the rotating mechanism 2 provided in this embodiment does not have a rotating spindle 209. Since the driving principle of Embodiment 1 and Embodiment 2 is the same, both of them achieve the rotational drive of the rotating upper seat 201 by the rolling displacement of the second driving wheel 203 along the second driving track 204. In order to reduce the number of drawings, this embodiment uses the drawings of Embodiment 2 to illustrate the principle.

[0060] During implementation:

[0061] like Figure 6 As shown, the second drive wheel 203 rotates and moves linearly along the second drive track under the drive of the second drive motor 205. Since the multiple second drive tracks 204 are circumferentially symmetrically distributed, when the multiple second drive wheels 203 roll and move synchronously, the rotating upper seat 201 will not move, but will rotate around its own axis.

[0062] Specifically, when the second drive wheel 203 moves linearly along the second drive track 204: the drive wheel mounting seat 210 and the telescopic rod 207 undergo angular deflection, and the length of the telescopic rod 207 changes. The telescopic rod 207 is always perpendicular to the connecting seat 206. When the telescopic rod 207 undergoes angular deflection, it drives the rotating upper seat 201 to undergo angular deflection.

[0063] Specifically, when the second drive wheel 203 moves from one end of the second drive track 204 to the other end, the telescopic rod 207 first shortens and then extends.

[0064] Example 2

[0065] In a specific embodiment of the present invention, the rotating mechanism 2 is improved based on embodiment 1: when it is necessary to transport heavy items, considering the limited load-bearing capacity of the telescopic rod 207 and the drive wheel mounting base 210, a rotating main shaft 209 is installed between the rotating upper seat 201 and the support base 202, as follows: Figure 3 As shown.

[0066] like Figure 2 As shown, the rotating spindle 209 is disposed between the rotating upper seat 201 and the support base 202, and the axis of the rotating spindle 209 coincides with the rotation axis of the rotating upper seat 201; the bottom of the rotating spindle 209 is fixedly connected to the support base 202, and the upper part is rotatably connected to the rotating upper seat 201.

[0067] Specifically, the bottom of the rotating spindle 209 is fixed to the support base 202 by bolts or welding, the upper part of the rotating spindle 209 is rotatably connected to the rotating upper seat 201 by bearings, and the axis of the rotating spindle 209 coincides with the rotation axis of the rotating upper seat 201.

[0068] Furthermore, when setting the rotating spindle 209: Since the rotating spindle 209 is mainly used to support the rotating upper seat 201, the distance between the rotating upper seat 201 and the support base 202 is fixed. However, with wear and tear, the gap between the second drive wheel 203 and the second drive track 204 increases, which will cause the drive wheel to spin freely.

[0069] Based on this, in this embodiment, a rubber layer is fixedly installed on the upper surface of the second drive track 204 by screws, and the second drive wheel 203 is in direct contact with the rubber layer. On the one hand, the rubber layer has a certain elasticity, and minor wear will not affect the driving effect; on the other hand, the rubber layer and the second drive track 204 can be detached and installed, and it is easy to quickly replace it after wear, so as to avoid delaying production.

[0070] Example 3

[0071] One specific embodiment of the present invention provides a rotating device for changing the conveying direction of a calcium carbide pot, such as... Figures 1-7As shown. It includes: a transfer mechanism 1, a rotating mechanism 2 (as in Embodiment 1 or Embodiment 2), and a conveying mechanism 3. The rotating mechanism 2 is positioned above the transfer mechanism 1 and is driven by the transfer mechanism 1 to perform linear displacement; the conveying mechanism 3 is positioned above the rotating mechanism 2 and is driven by the rotating mechanism 2 to rotate.

[0072] In one specific embodiment of the present invention, such as Figure 1 As shown, the transfer mechanism 1 includes: a first drive track 102, a transfer frame 103, a first drive wheel 106, and a first drive motor 107; the first drive wheel 106 is rotatably mounted on the transfer frame 103; the first drive wheel 106 is driven to rotate by the first drive motor 107; when the first drive wheel 106 rotates, it rolls along the first drive track 102 and drives the transfer frame 103 to slide relative to the first drive track 102.

[0073] The rotating mechanism 2 is fixedly installed on the transfer frame 103; the conveying mechanism 3 is fixedly installed on the rotating upper seat 201 of the rotating mechanism 2.

[0074] The transfer mechanism 1 of the present invention drives the first drive wheel 106 to rotate synchronously through the first drive motor 107, thereby realizing the rolling displacement of the first drive wheel 106 relative to the first drive track 102, and then driving the transfer frame 103 to move along the first drive track 102, thereby realizing the displacement drive of the rotating mechanism 2 and the conveying mechanism 3 above.

[0075] Furthermore, such as Figure 4 As shown, there are four first drive wheels 106; the first drive wheels 106 are symmetrically arranged on both sides of the first drive track 102.

[0076] Furthermore, the output shaft of the first drive motor 107 is fixedly connected to the drive gear; the drive gear meshes with the transmission rack; the transmission rack meshes with the transmission gear; the transmission gear is coaxial with and fixedly connected to the first drive wheel 106, thereby driving the first drive wheel 106. Specifically, the first drive motor 107 is fixedly mounted on the crossbeam 104 of the transfer frame 103, such as... Figure 1 As shown.

[0077] Specifically, the transmission rack is a rack ring, rotatably mounted on the transfer frame 103. When the drive gear rotates, it drives the rack ring to rotate, causing the straight portion of the rack ring to move linearly, which in turn drives the transmission gear and the first drive wheel 106 to rotate, causing the first drive wheel 106 to roll along the first drive track 102. Specifically, there are two transmission gears, and the two first drive wheels 106, coaxial with and fixedly connected to the transmission gears, are located on the same side of the first drive track 102.

[0078] Furthermore, the transfer mechanism 1 also includes two travel tracks 101 parallel to the first drive track 102. Specifically, the travel tracks 101 are symmetrically arranged on both sides of the first drive track 102, such as... Figure 1 As shown. Correspondingly, four driving wheels 105 are installed at the bottom of the transfer frame 103. When the first drive motor 107 drives the first drive wheel 106 to roll along the first drive track 102, the driving wheel 105 rolls on the driving track 101, realizing the forward or backward movement of the transfer frame 103, thereby driving the rotating mechanism 2 and the conveying mechanism 3 to perform linear displacement.

[0079] The present invention provides that the traveling wheel 105 rolls along the traveling track 101, the traveling wheel 105 can support the load on the transfer frame 103, the traveling wheel 105 can provide multi-point support, so that the transfer mechanism 1 can bear the load, and the first drive wheel 106 mainly realizes the function of displacement drive, thereby reducing the load pressure on the first drive wheel 106.

[0080] like Figure 7 As shown, the conveying mechanism 3 is a conveyor roller bed; the conveyor roller bed mainly consists of roller conveyors, bearings, roller conveyor frames, transmission components, drive components, and guide components. Specifically, the transmission component is a sprocket transmission mechanism; the drive component is a conveyor motor; and the guide components are guide tubes arranged on both sides of the roller conveyor.

[0081] In one specific embodiment of the present invention, the conveying mechanism 3 includes: a roller frame, a roller conveyor, a conveyor motor, and a sprocket drive mechanism. For example... Figure 7 As shown, the roller frame is the main structure of the conveying mechanism 3, and multiple rollers are rotatably installed on the roller frame; the conveying motor drives the rollers to rotate through the sprocket transmission mechanism.

[0082] Furthermore, power is transmitted between multiple roller conveyors via a sprocket drive mechanism to achieve synchronous rotation of the multiple roller conveyors. Specifically, the roller conveyors are rotatably mounted on the roller conveyor frame via bearings; two sprockets are fixedly installed at both ends of the roller conveyor, and chains are sleeved between the sprockets of adjacent roller conveyors to achieve synchronous rotation of multiple roller conveyors 22; thereby conveying materials.

[0083] Specifically, the roller conveyor has a cylindrical structure, is made of 40Cr quenched and tempered material with high-frequency quenching, and the roller conveyor frame is machined as a whole to ensure coaxiality, and is used to transport materials.

[0084] Compared with the prior art, the technical solution provided by the present invention has at least one of the following beneficial effects:

[0085] 1. In this embodiment, the conveying mechanism 3 is located above the rotating mechanism 2. It moves and rotates under the drive of the moving mechanism 1 and the rotating mechanism 2, thereby enabling it to connect with different conveyor chains to transport and transfer materials.

[0086] 2. The rotating device for changing the conveying direction of the calcium carbide pot of the present invention can simultaneously achieve linear displacement and rotational displacement, and can be widely used in industrial production processes for conveying and transferring materials, with the advantages of high mobility and high flexibility.

[0087] 3. The present invention can be used to realize the turning and conveying of materials. The device consists of a rotating mechanism 2, a moving mechanism 1 and a conveying mechanism 3, which facilitates the connection and turning of materials between various conveying channels in the workshop, making the conveying and storage of materials more flexible and mobile.

[0088] 4. The rotating device for changing the conveying direction of the calcium carbide pot of the present invention can not only realize single-line transportation of materials, but also, by adjusting the position and angle of the conveying roller bed through the transfer mechanism 1 and the rotating mechanism 2, enable the conveying roller bed to connect with different conveying lines, change the running direction, and realize multi-line transportation. The conveying system is not flexible enough, but has good mobility.

[0089] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A rotating device for changing the conveying direction of a calcium carbide pot, characterized in that, include: The mechanism includes a transfer mechanism (1), a rotating mechanism (2), and a conveying mechanism (3). The rotating mechanism (2) is located above the transferring mechanism (1) and is driven to perform linear displacement by the transferring mechanism (1); the conveying mechanism (3) is located above the rotating mechanism (2) and is driven to rotate by the rotating mechanism (2); the conveying mechanism (3) includes: a roller frame, rollers, a conveying motor and a sprocket transmission mechanism, the roller frame is the main structure of the conveying mechanism (3), and multiple rollers are rotatably installed on the roller frame; the conveying motor drives the rollers to rotate through the sprocket transmission mechanism; The rotating mechanism includes: a rotating upper seat (201), a connecting seat (206), a telescopic rod (207), and a linear drive assembly; the connecting seat (206) is fixedly connected to the rotating upper seat (201) or is an integral structure; one end of the telescopic rod (207) is fixedly connected to the connecting seat (206), and the other end is rotatably connected to the linear drive assembly; the linear drive assembly is used to output linear displacement; multiple sets of the telescopic rod (207) and the linear drive assembly are symmetrically arranged around the rotation center of the rotating upper seat (201); when multiple sets of linear drive assemblies output linear displacement synchronously, the rotating upper seat (201) rotates around the axis where the symmetry center of the telescopic rod (207) is located; The linear drive assembly includes: a second drive wheel (203), a second drive rail (204), and a second drive motor (205); the second drive wheel (203) is rotatably mounted on the end of the telescopic rod (207); the second drive motor (205) is used to drive the second drive wheel (203) to roll along the second drive rail (204); the second drive wheel (203) is rotatably mounted on a drive wheel support (210), and the drive wheel support (210) is rotatably connected to the telescopic rod (207); the second drive rail (204) is a linear guide rail; The rotating platform also includes a rotating spindle (209), which is disposed between the rotating upper seat (201) and the support base (202); the bottom of the rotating spindle (209) is fixedly connected to the support base (202), and the upper part is rotatably connected to the rotating upper seat (201).

2. The rotating device for changing the conveying direction of the calcium carbide pot according to claim 1, characterized in that, The rotating platform also includes a support base (202), and the second drive rail (204) is disposed on the upper surface of the support base (202) and fixedly connected; multiple second drive rails (204) are symmetrically arranged on the support base (202).

3. The rotating device for changing the conveying direction of the calcium carbide pot according to claim 2, characterized in that, The transfer mechanism (1) includes: a first drive rail (102), a transfer frame (103), a first drive wheel (106), and a first drive motor (107).

4. The rotating device for changing the conveying direction of the calcium carbide pot according to claim 3, characterized in that, The first drive wheel (106) is rotatably mounted on the transfer frame (103); the first drive wheel (106) is driven to rotate by the first drive motor (107).

5. The rotating device for changing the conveying direction of the calcium carbide pot according to claim 4, characterized in that, When the first drive wheel (106) rotates, it rolls forward along the first drive track (102) and drives the transfer frame (103) to slide linearly relative to the first drive track (102).

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